УСТАНОВКА ТЕРМИЧЕСКОЙ ПЕРЕРАБОТКИ НЕФТЕЗАГРЯЗНЕННЫХ ГРУНТОВ

Изобретение относится к переработке нефтезагрязненных шламов и грунтов. Установка термической переработки нефтезагрязненных грунтов, содержит топку, печь с барабаном, выполненную с возможностью вращения, загрузочное и разгрузочное устройства, дымовую камеру, холодильник, сепаратор, сборники воды, конденсата, газа, кека и приемник шлама. Топка включает поворотную трубу, выполненную с возможностью осуществления ею угловых и линейных движений, при этом давление в ней поддерживают на 10-20% ниже атмосферного, и связана с загрузочным устройством для исходного нефтезагрязненного грунта. Разгрузочное устройство связано с осадительной камерой, снабженной аппаратом воздушного охлаждения и жидкоструйной компрессорной установкой, предназначенной для перекачивания жидкой и газообразной фаз под давлением выше атмосферного, как минимум, на 1-2 атм, причем давление на входе жидкоструйной компрессорной установки равно давлению в рабочей полости барабана печи. Технический результат состоит в получении продуктов ...

СПОСОБ ОБРАБОТКИ ОТХОДОВ И СПОСОБ ОБРАБОТКИ ОТХОДОВ, НАХОДЯЩИХСЯ В ПОВЕРХНОСТНЫХ СЛОЯХ ПОЧВЫ

Описан способ в котором использована плазменная дуговая горелка для стеклования и оздоровления (санации) захоронения отходов, содержащего муниципальные отходы и загрязненные (зараженные) почвы, образовавшиеся в результате разлива или вноса опасных материалов или же в результате захоронения загрязненных объектов. Операции способа в соответствии с первым вариантом осуществления изобретения предусматривают бурение ряда отверстий в массе материала отходов при их надлежащем удалении друг от друга, введение и включение в работу дуговой плазменной горелки в каждой пробуренной скважине для пиролиза, оздоровления и стеклования отходов и создания возможности расплавленным материалам охладиться и затвердеть. В ходе этого процесса образуются газообразные побочные продукты, которые собираются в колпаке, подключенном к скрубберу и к установке химической очистки. Результирующие газы являются коммерчески полезными в качестве горючего газа, а остеклованный осадок имеет существенно меньший объем, чем объем ...

СПОСОБ НЕПРЯМОГО ХИМИЧЕСКОГО ВОССТАНОВЛЕНИЯ КОМПОНЕНТА ОТХОДОВ

Изобретение относится к регенированию материалов отходов. Способ включает химическое восстановление по существу всех восстановительных токсичных и потенциальное опасных металлсодержащих компонентов отходов. Отходы подают в ванну расплава металла, включающую первый восстановитель, который при рабочих условиях расплава металла в ванне расплава химически восстанавливает металл металлсодержащего компонента с образованием растворимого промежуточного соединения, второй восстановитель при рабочих условиях расплава металла в ванне расплава химически восстанавливает металл растворимого промежуточного соединения. Скорость, с которой подают второй восстановитель в ванну расплава металла, по сравнению со скоростью, с которой в ванну расплава металла подают компонент отходов, достаточна для растворения в ванне расплава металла по существу всего образовавшегося металлсодержащего промежуточного соединения, в результате чего происходит непрямое химическое восстановление компонента отходов. Такая технология ...

СПОСОБ ОЧИСТКИ НЕФТЕЗАГРЯЗНЕННОГО ГРУНТА ОТ НЕФТЕПРОДУКТОВ

Изобретение относится к очистке нефтезагрязненных грунтов (НЗГ) и может быть использовано при строительстве дорог с применением нефтесодержащих материалов, подлежащих утилизации. В способе очистки нефтезагрязненных грунтов от нефтепродуктов, включающем нагрев нефтезагрязненного грунта, шнекование, сбор нефти и очищенного грунта, корпус шнекового транспортера помещают в масляный обогреватель, нагрев нефтезагрязненного грунта производят во время шнекования до температуры 50-70° С бесконтактным способом. Технический эффект - получение грунта для дорожного строительства высокого качества с одновременной утилизацией нефтесодержащих отходов промышленности и обеспечением технологичности и безопасности процесса очистки нефтезагрязненного грунта. 2 ил.

СПОСОБ ОБЕЗВРЕЖИВАНИЯ ОТРАБОТАННЫХ МАТЕРИАЛОВ

Изобретение относится к способу обезвреживания отработанных материалов двух типов A и B. Тип A - это отходящий материал, имеющий относительно высокое содержание энергии, а тип B - это отходящий материал, содержащий воду, имеющий относительно низкое содержание энергии, причем упомянутый способ состоит из следующих стадий: пиролиз материала A для получения газа и/или масла углеродсодержащего остатка, смешение углеродсодержащего остатка с материалом B в соотношении, обеспечивающем в смеси менее 80% углеродистой составляющей, необходимой для спекания. 7 з.п. ф-лы, 1 ил.

РОТАЦИОННЫЙ ТЕРМОДЕСОРБЕР

Изобретение относится к центрифугированию, в частности к переработке твердых нефтесодержащих отходов, замазученной земли в ротационном термодесорбере. Ротационный термодесорбер состоит из бункера с дозатором, входной камеры, кожуха, вращающегося барабана с шарами и жестко закрепленными на нем лопатками, выходной камеры, камеры топки, газовых горелок. Вращающийся барабан снабжен установленным внутри него малым вращающимся барабаном, оба барабана снабжены с внешней стороны жестко установленными на них лопатками, расположенными в ряд под углом к оси вращения барабанов, и жестко закрепленными на них радиальными направляющими с упорами для перемещения установленных в них шаров, расположенными, так же, как и лопатки, снаружи вращающихся барабанов. Радиальные направляющие для шаров выполнены занимающими не менее половины длины окружности внешних диаметров вращающихся барабанов. Вращающийся барабан имеет два окна, расположенные под углом 90° друг к другу, одно из которых имеет возможность периодического ...

СПОСОБ ОЧИСТКИ ДИСПЕРСНОГО МАТЕРИАЛА ОТ НЕФТЕПРОДУКТОВ И УСТРОЙСТВО ДЛЯ ЕГО ОСУЩЕСТВЛЕНИЯ

... 1. Способ очистки дисперсных материалов, преимущественно от загрязнений нефтепродуктами, включающий нагрев загрязненного материала, обработку его водяным паром и отвод воды и нефтепродуктов, отличающийся тем, что обработку в среде водяного пара проводят при температуре 250-600oС при массовом соотношении "водяной пар - нефтепродукты" не менее чем 1/15. 2. Способ по п.1, отличающийся тем, что отводимую смесь паров воды и нефтепродуктов охлаждают до температуры, превышающей температуру конденсации паров воды. 3. Устройство для очистки дисперсных материалов, преимущественно от загрязнений нефтепродуктами, включающее смонтированные на общем основании рабочие органы забора, подачи и выгрузки материала, узел паровой обработки загрязненного материала с реакционной зоной, емкость для сбора жидких нефтепродуктов и печь для сжигания собранных нефтепродуктов, отличающееся тем, что оно снабжено холодильником-конденсатором, размещенным между узлом паровой обработки и емкостью для сбора жидких нефтепродуктов ...

УСТРОЙСТВО ТЕРМИЧЕСКОЙ ПЕРЕРАБОТКИ НЕФТЕЗАГРЯЗНЕННЫХ ГРУНТОВ

Устройство термической переработки нефтезагрязненных грунтов, содержащее линию их герметизированной переработки, отличающееся тем, что установка снабжена топкой, включающей как минимум поворотную трубу с эксцентрично изменяющимися угловой и линейной характеристиками движений подач, с герметичным удержанием подвижного сегментного в сечении объема нефтяного шлама, который на всем протяжении имеет комплексный контактный прогрев нефтезагрязненного продукта от тепловых полей газомазутного, инфракрасного и конвективного теплового излучения, с интенсифицируемым массовым теплопереносом испаряющейся жидкой фазы внутри замкнутого пространства барабана (5) вращающейся печи, содержащей дымовую камеру, топка связана с загрузочным устройством, которым загружают исходное сырье, освобожденное от излишних компонентов жидкой дисперсной фазы и с классифицированной твердой, дозированной по объему дисперсной средой, находящейся под давлением на 10-20% ниже атмосферного, и которая после обработки подается в ...

VERFAHREN UND VORRICHTUNG ZUR ENTFERNUNG VON VERUNREINIGUNGEN

Restoration of contaminated ground - by excavation, crushing, drying, high temp. high-treatment, cooling and backfilling

Soil which has been contaminated, esp the sites of shut-down coke oven plant, is processed by excavation, decontamination and restoring. The soil is passed through a grinding dryer and heat treated at a high temp. The flue gases are directed through an afterburner to a dryer for the excavated soil. The outgoing gases from the dryer are used to cool the processed soil. USE/ADVANTAGE - This minimises the heat expenditure and reduces the cost for waste gas treatment. The emission of noxious pollutants in the atmos is minimised.

A process is disclosed for recovering heavy metals, according to which adsorbants or waste are heated under depression in an inert gas within a processing chamber. The gasses containing heavy metal vapours produced in the processing chamber are led to a post-combustion chamber and the heavy metals are recovered by condensation from the exhaust gas that comes out of the latter chamber.

Photocatalytic activated charcoal, including colored and color-changing forms, used as deodorant and adsorbent and for purifying ground contaminated with dioxins, are coated with photocatalyst by vapor deposition

Photocatalytic activated charcoal (I) comprises a coating of photocatalyst (II) produced by vapor deposition on the surface of activated charcoal (III). Independent claims are also included for the following: (1) colored photocatalytic activated charcoal (IA), comprising (I) subjected to coloring treatment; (2) activated charcoal (IB) undergoing a color change, which contains a compound that undergoes a visible color change or decoloration on hydration and is applied to the surface of (I) or (IA).

ANLAGE UND VERFAHREN ZUR ENTGIFTUNG VON ERDBODEN

VERFAHREN ZUR ENTSEUCHUNG KONTAMINIERTEN BODENS

Verfahren und Anordnung zur Reinigung von kontaminiertem Erdreich

Process for clearing and disposing of waste landfills

A process is described for clearing waste landfills and disposing of the cleared material composed of domestic and/or industrial refuse, in which the waste stored in any manner together with the leachate waters of the landfill or parts therefrom are withdrawn and, in appropriately predetermined portioning, are subjected to a multistage thermal treatment. The treatment is performed in different temperature ranges, in a last high-temperature stage at above 1000 DEG C a conversion taking place which, if appropriate, can be accompanied by a separation. New wastes of disposed material of all types such as even sewage sludges or the like can be added to the landfill waste before the high-temperature treatment.

Verfahren zum eluatsicheren Einbinden von in verglasbaren Reststoffen enthaltenen Schwermetallen

Oil contaminated substrate treatment method and apparatus

A method and apparatus for treating for disposal oil contaminated substrates, such as drill cuttings from drilling with an oil-based mud, by steam distillation. If necessary, the contaminated substrate (10) can be pretreated with an emulsion breaker (14). The contaminated substrate (10) can be treated with steam (16) in a first mixing still (12). The substrate can be optionally treated with a second steam source (20) in a second mixing still (18). The steam provides heat to vaporize the oil, moisture to treat the substrate and water to the reaction mixture. Recoverable constituents in the vapor can be condensed in a vapor collection system (24). The treated substrate (22) is essentially free of oil and can have a controlled water content. The process exhibits low energy consumption, rapid treatment, compact equipment and a high degree of process control.

Apparatus and method of treating contaminated waste

Apparatus and method for treating contaminated waste products, such as drill cuttings. The waste products are heated in a reactor vessel (10) so that liquid contaminants evaporate, leaving solids that are safe for disposal. The input (30) and output (34) of the reactor vessel (10) are controllable relative to the temperature of the contents of the reactor (10) and to the amount of material therein, and the two variables are balanced in order to provide a smoother transition from contaminated to waste material.

Immobilisation of pollutants in and by clay materials

Method and apparatus for using hazardous waste to form non-hazardous aggregate.

Aqueous composition containing h2o2 acids and ag preparation method therefor and use thereof for disinfection hygiene and/or pollution control

VERFAHREN UND ANLAGE ZUR BEHANDLUNG VON ORGANISCHE UND GEGEBENENFALLS ANORGANISCHE SCHADSTOFFE ENTHALTENDEM AUFARBEITUNGSGUT

PROCEDURE AND DEVICE FOR THE ELECTRICAL CONTROL OF PROCESSES INTO FESTSTOFFHALTIGEN MATRICES

ELECTRICALLY STRENGTHENED IN-SITU REDEVELOPMENT OF CONTAMINATED GROUNDS

PROCEDURE FOR THE DECONTAMINATION OF POLLUTED GROUNDS

IMPROVED IMPURITY SEPARATOR

PROCEDURE FOR THE DISPOSAL OF MINERAL OIL-CONTAMINATED GROUNDS

PROCEDURE AND DEVICE FOR THE DISTANCE OF ONE OR MORE POLLUTANTS FROM DEBRIS PROPERTY

PROCEDURE AND DEVICE FOR DECONTAMINATING SOLIDS.

PROCEDURE FOR IN-SITU-REMOVAL OF GROUND IMPURITIES.

PROCEDURE FOR THE PRODUCTION OF CINDER AND REMOVAL OF DANGEROUS CELEBRATIONS WASTES.

PROCEDURES FOR THE DECONTAMINATION OF LEAD-CONTAMINATED GROUND AND USED BATTERY BOXES

PROCEDURE FOR THE REDEVELOPMENT OF HEAVY METALS ABSTENTION GROUND MATERIAL

THERMALLY IMPROVING GROUND RESTORATION METHOD

PROCEDURE FOR COMBINED DISPOSING OF OF WASTE MATERIALS.

PROCEDURES FOR THE DISTANCE OF POLLUTANTS FROM POLLUTED MATERIAL, IN PARTICULAR CONTAMINATED GROUNDS AND BUILDING DEBRIS.

SYSTEM FOR THE TREATMENT OF VOLATILE MATERIALEN

PROCEDURE AND DEVICE FOR THE CLEANING OF CONTAMINATED MATERIALS

PROCEDURE FOR MELTING, BURNING OR EINÄSCHEREN FROM MATERIALS AND DEVICE TO IT

PROCEDURE FOR THE REDEVELOPMENT

PROCEDURES FOR THE DECONTAMINATION CONTAMINATED GROUND

Soil remediation system

A PROCESS FOR THE COMBINED TREATMENT OF WASTE MATERIALS

A process for separating a contaminating substance from a material contaminated by said substance

Thermal process for treating hydrocarbon-contaminated drill cuttings

In situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well

Apparatus and methods for remediating materials contaminated with hydrocarbons

Methods and systems for bioremediating contaminated soil

Method for treating soil contaminated with hydrocarbons

Improved physical and thermal treatment of waste

A METHOD IN TREATING SOLID MATERIAL TO REMOVE VAPORIZABLE MATTER FROM IT

Method and device for processing bulk material

CARBON-BASED ADSORPTION POWDER CONTAINING CUPRIC CHLORIDE

A carbon-based, adsorption powder containing an effective amount of cupric chloride suitable for removing mercury from a high temperature, high moisture gas stream, wherein the effective amount of cupric chloride ranges from about 1 to about 45 wt percent. Additional additives, such as potassium permanganate, calcium hydroxide, potassium iodide and sulfur, may be added to the powder to enhance the removal of mercury from the gas stream.

INSTALLATION AND USE OF REMOVABLE HEATERS IN A HYDROCARBON CONTAINING FORMATION

... ²²²In an embodiment, a system may be used to heat a hydrocarbon containing ²formation. The system may include a heater placed in an opening in the ²formation. The system may allow heat to transfer from the heater to a part of ²the formation. The transferred heat may pyrolyze at least some hydrocarbons in ²the formation. The heater may be removable from the opening in the formation ²and redeployable in at least one alternative opening in the formation.² ...

A METHOD FOR THE REMEDIATION OF CONTAMINATED SOIL

A containment chamber is constructed by excavating a pit at the site of oil-contaminated sand and lining the pit with an impermeable, heat-resistant, flexible plastic liner. An array of spaced apart heating assemblies is positioned to cover the bottom of the chamber. Each heating assembly may include an elongate linear electric resistance heater positioned within a tubular slotted sand screen. The containment chamber is filled with a charge of contaminated sand. Solvent, such as diesel fuel, is pumped into the elongate passageways defined between the heaters and screens. The heaters are actuated to vaporize the solvent, which moves through the screen slots and convectively permeates the charge. The vapor transfers heat to the oily sand and condenses. Condensed solvent and heated oil drain and are recovered from the chamber.

PROBE FOR OPTICALLY MONITORING PROGRESS OF IN-SITU VITRIFICATION OF SOIL

... 22 A detector system for sensing the progress of an ISV process along an expected path comprises multiple sensors each having an input port. The input ports are distributed along the expected path of the ISV process between a starting location and an expected ending location. Each sensor generates an electrical signal representative of the temperature in the vicinity of its input port. A signal processor is coupled to the sensors to receive an electrical signal generated by a sensor, and generate a signal which is encoded with information which identifies the sensor and whether the ISV process has reached the sensor's input port. A transmitter propagates the encoded signal. The signal processor and the transmitter are below ground at a location beyond the expected ending location of the ISV process in the direction from the starting location to the expected ending location. A signal receiver and a decoder are located above ground for receiving the encoded signal propagated by the transmitter ...

METHOD OF CONTAMINATED SOIL REMEDIATION AND APPARATUS THEREFOR

A method and apparatus for on-site remedial soil restoration activity of a work site contaminated with volatile organic compounds. Soil is removed from the ground and hauled to an initial feed hopper whereat it is conveyed to an inlet end of a hollow rotating cylinder having plural flights therein for effecting a moving of the contaminated soil lengthwise of the rotating cylinder toward an outlet end. The soil is heated as it tumbles about in the cylinder and the volatile organic compounds (VOCs) are volatilized inside the rotating cylinder. The hot gases drawn from the cylinder are filtered for the purpose of removing dry soil fines. The soil exiting the outlet end of the cylinder is thence recirculated through the rotating cylinder and thereafter fed to a conveying mechanism, whereat the cleaned soil is delivered to a selected location. The cleaned soil is then placed into the ground. The hot gases are scrubbed to remove therefrom any organics, acids and phosgenes. The gases are thereafter ...

IN-SITU VITRIFICATION OF SOIL

S-54,906 IN-SITU VITRIFICATION OF SOIL A method of vitrifying soil at or below a soil surface location. Two or more conductive electrodes are inserted into the soil for heating of the soil mass between them to a temperature above its melting temperature. Materials in the soil, such as buried waste, can thereby be effectively immobilized.

ISOLATION OF SOIL WITH A FROZEN BARRIER PRIOR TO CONDUCTIVE THERMAL TREATMENT OF THE SOIL

Freeze wells may be used to isolate an area for soil remediation. Freeze wells may form a frozen barrier around a treatment area. The frozen barrier may inhibit fluid from entering into the treatment area. The frozen barrier may also inhibit migration of contamination out of the treatment area. The frozen barrier may be used to surround all of the perimeter of the treatment area. A frozen barrier may also be formed above or below a treatment area. Freeze wells may be activated in advance of soil remediation so that a frozen barrier is formed when soil remediation is begun. The soil remediation may be accomplished by any type of soil remediation system, including a thermal soil remediation system. Heaters of a thermal soil remediation system may be may be placed close to the frozen barrier without the barrier being broken through during remediation.

REMEDIATION OF MERCURY CONTAMINATED SOIL

An in situ soil remediation system may be used to remove or reduce levels of mercury contamination within soil. The soil remediation system may also remove or reduce levels of other contaminants within the soil. Mercury may be vaporized within the soil by a heating system. The vaporized mercury may be removed from the soil by a vacuum system. The vaporized mercury may pass through heated risers that elevate the vaporized mercury. After the vaporized mercury passes from the heated risers, the vaporized mercury may be allowed to cool, condense, and flow downward to a treatment facility. Removing mercury from the soil as a vapor may provide an economical, safe, and efficient way to remediate mercury contaminated soil.

SOIL CLEANING SYSTEMS AND METHODS

A method for remediating drilled cuttings from a wellbore which, in certain embodiments, includes introducing drilled cuttings with oil and water to a system for remediation, the system including a thermal treatment system and a condensing system, feeding a slurry of the cuttings with oil and water to the thermal treatment system and heating the drilled cuttings therein producing heated cuttings and a stream with oil and water, discharging the heated cuttings from the thermal treatment system, feeding the stream with oil and water to a dual component separation system producing separated-out solids and a vapor with oil and water therein, feeding the vapor to a condenser system producing a liquid stream, and feeding the liquid stream to an oil/water separator apparatus producing an oil stream and a water stream.

SOIL REMEDYING USING AN ENCLOSED CONVEYOR WITH AIR EXTRACTION

A soil remediation apparatus for treating contaminated soil comprises an air deck unit and a remediation unit. The air deck unit comprises an enclosure with a contaminated soil inlet and a remediated soil outlet; at least one conveyor located inside the enclosure and operable to convey soil from the enclosure inlet to the enclosure outlet; and contaminated air extraction means having an inlet in fluid communication with the enclosure and an outlet, and operable to extract air from the air deck unit.

IN SITU PRODUCTION OF A BLENDING AGENT FROM A HYDROCARBON CONTAINING FORMATION

An in situ process for treating a hydrocarbon containing formation is provided. The process may include providing heat from one or more heaters to at least a portion of the formation. The heat may be allowed to transfer from the reaction zone to a part of the formation such that heat from one or more heaters pyrolyzes at least some hydrocarbons within the part of the formation. A blending agent may be produced from the part of the formation, wherein a mixture produced with the blending agent has at least one selected property.

SYSTEM AND METHOD FOR TREATING OIL-BEARING MEDIA

A process and system for oil-contaminated soil remediation and oil recovery from oil-bearing media such as oil-contaminated soil, different types of oil-bearing sludge's from oil producers, upgraders and refineries, oil shale, oil sands, and coal oil shale, oil sand s and coal includes (1) a portable or fixed twin thermal desorption unit with two rotating trundles in one stationary house, and (2) multiple co-combustion burners burning coal, scrap tires, used oils, sludge's containing high oil content, propane and natural gas to supply heat for the twin desorption unit, and (3) a suction fan to create a slightly vacuum environment, receive vapors and send them to (4) a cooling line with a heavy component condenser to condense heavy oils, a set of air cooling pipe to condense light oils and steam and a three-phase (gas/oil/water) separation tank to separate oil from water, and (5) a feeding line with a blender to break wet lumps and a crasher to break rocks presence in the raw material being ...

METHOD AND APPARATUS FOR REMEDIATING CONTAMINED LAND

The invention relates to a method and apparatus for remediating land (10) that is contaminated by a combustible material (12), in particular, land contaminated with non- aqueous phase liquids (NAPLs). In an embodiment of the invention, a method for remediating land that is contaminated by a combustible material is disclosed which includes the steps of locating a subterranean volume (16) of combustible material such as a DNAPL (12) in land (10) to be remediated, and igniting the combustible material (12) to combust the material and thereby remediate the land (10). By monitoring combustion of the material, combustion may be optimised by, for example, supplying an oxidant or a combustion suppressant.

PROCESS FOR RECOVERING SOLVENT FROM OIL SAND TAILINGS STREAMS

A method comprising providing a tailings stream comprising solvent, precipitated asphaltenes, mineral solids, residual maltenes, and water; and recovering a portion of the solvent from the tailings stream by vaporization in a viscous fluid evaporator or particulate solid desolventizer to produce desolventized tailings and a recovered solvent stream.

SOLIDS HEAT EXCHANGER

A solids heat exchanger (10) is in the form of a shell and tube arrangement having a shell section (11) through which heated oil (12) passes and a tube section (13). A screw conveyor (14) extends along its length and has a drive motor (15). Drill cuttings or other hydrocarbon contaminated materials are fed in through an inlet (16) and then conveyed along the tube (13) where heat transfer takes place. On exiting the tube (13) oil and water vapour rises and escapes through a first outlet (17) while the now cleaned drill cuttings or other materials fall through a second outlet (18) forming a discharge zone. The apparatus aims to reduce the oil content of the solids to less than 0.5%. The solids can then simply be disposed of. The base oil can be reclaimed and reused.

SYSTEM FOR HEATED AIR EXTRACTION OF CONTAMINANTS FROM A SOIL STACK

... 2096964 9305896 PCTABS00021 The recirculating system includes a soil stack (10), which is formed by sequential layers of contaminated soil and hot air pipes (22, 26, 32, 34). A plurality of vapor collection pipes (40, 46) is laid over the top of the stack, with a sealing member (50) positioned over the entire stack (10) and sealed around the base thereof. First and second connecting means (99, 102) connect the hot air pipes and the vapor collection pipes to a heating/vapor destruction system (52), which includes a burn chamber (54), a first duct (91) extending from the outlet of the chamber (54) to a first blower (93), a second duct (97) extending from the first blower (93) to the first connecting means (99), a third duct (106) extending from the second connecting means (102) to a second blower (110), and a fourth duct (120) which extends from the second blower (110) to the inlet (58) of the chamber (54). Test ports (114, 115) are positioned in the second connecting means to continuously ...

EARTH MELTER

An apparatus, and method of operating the apparatus, wherein a feed material is converted into a glassified condition for subsequent use or disposal. The apparatus is particularly useful for disposa l of hazardous or noxious waste materials which are otherwise either difficult or expensive to dispose of. The apparatus is preferably constructed by excavating a melt zone in a quan- tity of soil or rock; and lining the melt zone with a back fill material if refractory properties are needed. The feed material is fed into the melt zone and, preferably, combusted to an ash, whereupon the heat of combustion is used to melt the ash to a molten condition: Electrodes may be used to maintain the molten feed material in a molten condition, and to maintain homogeneity of the molten materials.

METHOD AND APPARATUS FOR SOIL REMEDIATION WITH SUPERHEATED STEAM THERMAL DESORPTION AND RECYCLE

Method and apparatus for soil remediation with superheated steam thermal desorption and recycle. A method and apparatus are provided for remediating contaminated soil having volatilizable organic pollutants in a heated treatment zone, preferably a rotary drum, in gas/solids contact with superheated steam. Treatment gases from the treatment zone are repressurized and reheated for reuse in the treatment zone. Superheated steam is maintained in a closed loop and is maintained at superheated conditions. Vaporized organic pollutants and superheated steam are removed from the closed loop of superheated steam for cooling and condensation to condense water and condense liquid volatilizable organic pollutants and uncondensed organic pollutant vapors.

METHOD FOR REMEDIATION OF LEAD-CONTAMINATED SOIL AND WASTE BATTERY CASINGS

... 21 Lead-contaminated soil and battery casings are remediated using a plasma arc furnace which pyrolyzes the soil and waste battery casings so as to form a vitrified slag and a combustible gas, respectively. The combustible gas along with volatilized lead (and other heavy metals which may be present) are transferred to, and used as a primary fuel by, a conventional smelting furnace. The volatilized lead that is entrained in the combustible gas is thus transferred to the recovery and environmental protection/control equipment associated with the smelting furnace. The soil, on the other hand, is converted into a non-toxic (i.e., according to the Toxicity Characteristic Leaching Procedure) vitrified slag by the plasma arc which may be crushed and used as a commercial material (e.g., roadway aggregate, asphalt filler material and the like) or simply transferred to a landfill where it poses no environmental threat.

PROCESS FOR IN SITU DECONTAMINATION OF SUBSURFACE SOIL AND GROUNDWATER

A method is provided for in situ decontamination of contaminated subsurface area by injection of steam into injection wells and withdrawing liquids and vapors from extraction wells under subatmospheric pressure whereby steam is passed through the contaminated area in an essentially horizontal direction. After a substantial portion of the contamination has been removed in this manner, the injection of steam is ceased, but the extraction at subatmospheric pressure is continued, to volatilize and remove the residual water and contaminants trapped in the pores of the soil. The steam injection may be periodically resumed to reheat the area and to replenish the water in the pores.

METHOD FOR REMOVING MERCURY FROM CONTAMINATED SOILS AND INDUSTRIAL WASTES AND RELATED APPARATUS

A method and an apparatus (30) for removing mercury from contaminated soils and industrial wastes are provided. The removed mercury may be recovered. A furnace (8) vaporizes the mercury containing portion and the vapors are condensed. In one embodiment, an initial heating stage volatilizes water vapor and other volat ile contaminants, such as hydrocarbons, with substantial vaporization of the mercury-containing portion, subsequently, a seco nd temperature higher than the first is employed to vaporize the mercury containing portion. In one embodiment, a metallic salt reac ts with sulfur in the material to form a stable solid sulfur compound to reduce sulfur content in the gaseous effluent. The addi tion of a metallic salt may also be employed to react with mercury halides to release elemental mecury therefrom. The contaminated mat erial is thereby converted from one which is hazardous due to mercury contamination to one which is non-hazardous. The efflue nt is treated to reduce environmental ...

COMBINED ASPHALT PLANT AND SOIL REMEDIATION SYSTEM

An apparatus and method for heating and drying stone aggregate used in the production of asphalt, which also remediates and disposes of contaminated soil. Aggregate is introduced into a drum chamber (36) of a fixed sleeve rotary drum mixer (34) for heating. The aggregate is discharged into an annular chamber (70) and mixed with contaminated soil that has been processed to be suitable for use in asphalt. As the soil is heated, the contaminants are vaporized and drawn into the drum chamber (36) where they are oxidized by high temperature. Secondary aggregate in the form of recycled asphalt pavement (RAP) and/or virgin aggregate are also added to the annular chamber (70) and mixed with the aggregate and soil to form asphalt and to cool the aggregate/soil mixture.

PROCESS FOR THE COMBINED TREATMENT OF WASTE MATERIALS

The invention relates to a process for the combined treatment of waste materials of two types A and B, A being waste material having a relatively high energy content and B being a water containing waste material having a relatively low energy content, said process comprising the following steps: 1) pyrolyzing (2) material A to pro duce a gas and/or oil (4) and a carbonaceous residue (3), 2) mixing (11) said carbonaceous residue with B to form a water con taining mixture C, 3) shaping (12) said mixture C into individual pieces, 4) drying and baking (13) said pieces to ceramic bodies (15), wherein in step 2, the carbonaceous residue (3) is used in such an amount that less than about 80 % of the totally required baking energy is contained in mixture C.

METHOD AND APPARATUS FOR REMOVING VOTATILE COMPOUNDS FROM SOILS

Volatile compounds such as polychlorinated biphenyls (PCB's) which contaminate a soil can be removed - without incineration - by a process which generally involves: (1) introducing the contaminated soil into a vessel, (2) heating the soil to a temperature greater than about 300.degree.F, but less than 600.degree.F, preferably in the presence of an inert gas, (3) drawing a vacuum on the vessel to such a degree as to cause the contaminant to flash to a contaminant vapor and (4) condensing the contaminate vapor to a liquid and (5) disposing of said liquid.

Process for Incinerating Solid Wastes and a Process for Treating Solid Wastes and a Process for Treating Gases Generated Through Incineration of These Wastes

CONVERTIBLE ASPHALT AND SOIL REMEDIATION PLANT AND METHODS OF OPERATION

CONVERTIBLE ASPHALT AND SOIL REMEDIATION PLANT AND METHODS OF OPERATION A materials-handling plant is convertible for producing asphalt by either batch or continuous drum mix processes or remediating soil. Common to each process is a rotary drum and burner system for heating the materials, a primary separator and a baghouse for separating particulate matter from exhaust gas streams. For asphalt production by a batch process, aggregate is dried in the drying section of the drum and discharged for combination with asphalt in a batch tower. In the continuous drum mixer mode of asphalt production, dried aggregate is discharged into a drum mixing section for mixing with asphalt and recycle asphalt and conveyed to a storage silo. In both cases, particulate dust is separated from the exhaust gas stream and combined with the resulting asphalt product. For soil remediation, the contaminants in the soil are volatilized in the drum by contact with the hot gases of combustion. Dust particles in the ...

METHOD FOR HEATING HYDROCARBON CONTAMINATED SOILS AND REMOVAL OF VOLATILE HYDROCARBONS

An improved method for heating the aqueous slurries of soils contaminated with t arry/oily organics and volatile compounds. The method includes the steps of heating the slurry (con taining inorganic and carbonaceous solids below 1/8 inch) with atmospheric pressure steam in a spe cially designed slurry heater(s), contacting the hot (95-99.degree.C) slurry with the c ontaminated feed soil (top size 5 inch) in a hydraulic feeder, processing the resultant slurry in a tumbler at temperatures up to 90.degree.C, separating the -1/8 inch solids from the slurry exiting the tumb ler and recycling a portion of the -1/8 inch solids in slurry back to slurry heater(s). In order to reach th e required temperature in the tumbler, the -1/8 inch slurry has to travel through the tumbler at mass f low rates 1.5-4.0 times higher as compared to those for the soil feed stream. Under such condition s, the fine (-1/8 inch) components of the soil are processed under more rigorous conditions (steam , high temperature ...

PROCESS AND APPARATUS FOR REMOVAL OF PETROLEUM FROM PARTICULATE MATERIALS

A process for the removal of petroleum contaminants from particulates is disclosed which involves (i) volatilization of the contaminated particulates in a toroidal dynamic bed (1) suspended in hot gases and/or (ii) extraction of the contaminated particulates in a toroidal dynamic bed (1) suspended in hot gases (such as hot combustion product gases, e.g., mixtures of CO2, CO, H2O, unconsumed hydrocarbons, in a variety of proportions) optionally containing steam or a solvent for the petroleum contaminant. The separation of the petroleum contaminant is to obtain solids containing less than 1, preferably less than 0.5 and most preferably less than about 0.1 weight percent of the contaminant. The process allows sufficient petroleum removal so that the solids are suitable for direct dumping in a landfill, assuming that the solids are free of non-petroleum environmental contaminants.

METHOD OF MAKING POLLUTANT HARMLESS AND APPARATUS FOR CONDUCTING THE METHOD

This invention relates to a method of making a pollutant harmless by treating a material to be treated containing the pollutant. The method comprises the steps of: heating the material in a pressure resistant vessel hermetically to obtain a heated material; supplying the heated material from the vessel to a nozzle; and jetting out the material from the nozzle to collide against a collecting member arranged opposite to the nozzle.

CONTAMINATED SOIL REMEDIATION METHOD

A method is provided to remove volatile liquid contaminates from a contaminated volume of earth, the contaminated volume lying above a noncontaminated layer of earth, the method including the step of heating the noncontaminated layer until the temperature of a substantial portion of the noncontaminated layer that is contiguous with the contaminated layer is at least the boiling point temperature of contaminated liquids so as to prevent vaporized contaminants to move downwards from the contaminated layer of earth.

REMOVAL AND DESTRUCTION OF CHLORINATED AROMATICS FROM CONTAMINATED SOIL

This invention is related to a process for decontaminating soil using acidification, heat, and pressure for the removal and destruction of chlorinated aromatics such as PCB's, doixins and furans from the soil. The effect of pH, pressure, and temperature was investigated in an ex-situ, batch system.

PROCESS FOR PREPARING ENVIRONMENTALLY STABLE PRODUCTS BY THE REMEDIATION OF CONTAMINATED SEDIMENTS AND SOILS

This invention relates to remediation and decontamination of sediments and soils contaminated with organic and inorganic contaminants. Environmentally stable products are produced when certain additives such as calcium oxides are mixed with the contaminated materials. In the process, the mixture is heated to produce a molten reaction product with at least part of an excess amount of oxygen mixture or air continuously bubbled through the melt (16) in order to provide mixing and achieve high thermal destruction and removal efficiencies of the organic contaminants. The melt (16) is then quickly quenched in moist air, steam or water to avoid the transformation of the amorphous material into crystals. The inorganic contaminants such as chromium, nickel and zinc are incorporated and completely immobilized within the amorphous silicate network. The amorphous material can be pulverized to yield a powder which evinces cementitious properties by blending it with other materials to produce blended ...

Verfahren zur Entfernung von in Erdreich eingedrungenen, brennbaren Substanzen, wie Mineralöl oder dergleichen und Vorrichtung zur Durchführung des Verfahrens

PROCEDURE FOR THE SEPARATION OF POISONOUS VOLATILE ONE CHEMICAL COMPOUNDS FROM A MIXTURE OF CELEBRATIONS PARTICLES WITH A PARTICLE SIZE TO 200 MICROMETERS.

METHOD FOR PRODUCTION OR EXTRACTION OF MATERIALS BY INCOMPLETE COMBUSTION OF

APPARATUS IN USE IN THE SEPARATION SUBSTANCES PERFORMING CHEMICAL REACTIONS TO SEPARATE VOLATILE FROM A SUBSTANCE COMPRISING AT LEAST ONE VOLATILE SUBSTANCE AND METHOD THEREOF

СПОСОБ ПРОИЗВОДСТВА ИЛИ ИЗВЛЕЧЕНИЯ МАТЕРИАЛОВ ПУТЕМ НЕПОЛНОГО СЖИГАНИЯ

Изобретением обеспечиваются способы производства или извлечения газообразных материалов, таких как водород, и твердых материалов, таких как металлы, путем неполного сжигания органического материала. Способы включают смешивание материала пористой матрицы с органическим материалом и в некоторых вариантах осуществления изобретения катализатором с образованием пористой смеси. Смесь подвергают воздействию окислителя, инициируя самоподдерживающееся неполное сжигание смеси, и улавливают пары и продукты горения или после сжигания подвергают пористую матрицу обработке, направленной на физическое отделение материала пористой матрицы от золы, содержащей ценные неорганические материалы. В дополнительных вариантах осуществления изобретения органический материал или катализатор, или материал пористой матрицы, или их смесь соединяют в накопителе, таком как реакционный резервуар, отстойник или отвал матрицы. В дополнительных вариантах осуществления изобретения по меньшей мере один нагреватель используют ...

METHOD OF TREATMENT OF DRILLING SLUDGE (VERSIONS) AND DEVICE FOR ITS REALIZATION (VERSIONS)

СПОСОБ ОЧИСТКИ

Способ удаления летучих жидких загрязняющих веществ из загрязненного объема земли, причем этот загрязненный объем залегает выше незагрязненного слоя земли, причем этот способ содержит этап нагрева незагрязненного слоя до тех пор, пока температура существенной части незагрязненного слоя, который прилегает к загрязненному слою, достигнет, по меньшей мере, температуры точки кипения загрязненных жидкостей с тем, чтобы предотвратить движение парообразных загрязняющих веществ по направлению вниз из загрязненного слоя земли. Международная заявка была опубликована вместе с отчетом о международном поиске.

СПОСОБ И УСТРОЙСТВО ДЛЯ ОБРАБОТКИ ЗАГРЯЗНЁННОГО УГЛЕВОДОРОДАМИ СУБСТРАТА

Способ и устройство для обработки загрязненных углеводородами субстратов с целью их утилизации, таких как буровой шлам, образующийся при бурении с использованием бурового раствора на углеводородной основе, методом паровой перегонки. При необходимости загрязненный субстрат (10) может быть предварительно обработан деэмульгатором (14). Загрязненный субстрат (10) может быть обработан паром (16) в первом выпарном аппарате с перемешиванием (12). Субстрат может быть необязательно обработан вторым источником пара (20) во втором выпарном аппарате с перемешиванием (18). Пар обеспечивает тепло для испарения углеводородов, влагу для обработки субстрата и воду для реакционной смеси. Регенерируемые компоненты пара могут быть сконденсированы в паросборной системе (24). Обработанный субстрат (22), по существу, не содержит углеводородов и может иметь контролируемое содержание воды. Процесс характеризуется низким энергопотреблением, быстрой обработкой, компактным оборудованием и высокой степенью контроля ...

СПОСОБ И СИСТЕМА ДЛЯ ВОССТАНОВЛЕНИЯ ЗАГРЯЗНЕННОЙ ПОЧВЫ

Предложена система для восстановления загрязненной почвы. Система содержит выполняющую восстановление почвы ячейку, вмещающую загрязненную почву, и множество многофункциональных проходов, находящихся в загрязненной почве. Каждый многофункциональный проход определяет реакционный объем. Многофункциональные проходы содержат нагревательные элементы для введения тепла в загрязненную почву для осуществления испарения загрязняющих веществ в загрязненной почве без применения принудительного механического перемещения воздуха. В результате этого создаются загрязненные испарения. Проточные каналы, проходящие через проходы, удаляют загрязненные испарения из ячейки восстановления почвы. Существенная часть загрязняющих веществ в загрязненных испарениях разрушается в реакционном объеме. Получают, по существу, незагрязненные испарения, в которых по меньшей мере около 80 вес.% загрязняющих веществ разрушено. Отчет о международном поиске был опубликован 2004.08.05.

УСТРОЙСТВО И СПОСОБ РАЗДЕЛЕНИЯ ВЕЩЕСТВ И ПРОВЕДЕНИЯ ХИМИЧЕСКИХ РЕАКЦИЙ ДЛЯ ОТДЕЛЕНИЯ ЛЕТУЧИХ ГАЗОВ ИЗ МАТЕРИАЛА, СОДЕРЖАЩЕГО, ПО МЕНЬШЕЙ МЕРЕ, ОДНО ЛЕТУЧЕЕ ВЕЩЕСТВО

Предложено устройство для отделения летучих веществ от нелетучих веществ, отделения летучих веществ друг от друга, а также для проведения различных химических реакций. Устройство, в частности, выполняет эти функции при сочетании внутри вращающегося сосуда температуры, превышающей температуру окружающей среды, и разрежения, превышающего 3,386 кПа (1 дюйм рт.ст.). Вращающийся сосуд устройства может быть снабжен внутренним фильтром, через который должны проходить выходящие газы и пары, либо может не иметь такого фильтра. Благодаря своей компактности предложенное в настоящем изобретение устройство может быть спроектировано также в передвижном варианте для автономного режима работы. Международная заявка была опубликована вместе с отчетом о международном поиске.

УСТАНОВКА "МЛТП-1" ДЛЯ ТЕРМИЧЕСКОГО ОБЕЗВРЕЖИВАНИЯ ПРОМЫШЛЕННЫХ ОТХОДОВ

Изобретение относится к переработке нефтезагрязненных шламов и грунтов и твердых нефтесодержащих отходов. Предлагаемая установка расширяет арсенал используемых средств. Установка для термического обезвреживания промышленных отходов, включающая устройство сортировки, измельчения и подачи обрабатываемых отходов, камеру термической утилизации с барабаном, установленным с возможностью вращения, с зоной загрузки обрабатываемых отходов и зоной их выгрузки, конструктивно соединенных с камерой термической утилизации, и устройство очистки отходящих газов. Камера термической утилизации включает барабан, который снабжен фланцевым уплотнением подвижных соединений и выполнен с двойными стенками с термоизоляцией между ними, при этом наружная стенка выполняет роль силовой конструкции, на внутренней стенке размещены лопатки. Со стороны зоны выгрузки камеры термической утилизации установлены инжекторная жидкотопливная горелка с системой поворота в двух плоскостях сопла горелки и желоб с выгрузным шибером ...

СПОСОБ И СИСТЕМА ДЛЯ ВОССТАНОВЛЕНИЯ ЗАГРЯЗНЕННОЙ ПОЧВЫ

Предложена система для восстановления загрязненной почвы. Система содержит выполняющую восстановление почвы ячейку, вмещающую загрязненную почву; и множество многофункциональных проходов, находящихся в загрязненной почве. Каждый многофункциональный проход определяет реакционный объем. Многофункциональные проходы содержат нагревательные элементы для введения тепла в загрязненную почву для осуществления испарения загрязняющих веществ в загрязненной почве, без применения принудительного механического перемещения воздуха. В результате этого создаются загрязненные испарения. Проточные каналы, проходящие через проходы, удаляют загрязненные испарения из ячейки восстановления почвы. Существенная часть загрязняющих веществ в загрязненных испарениях разрушается в реакционном объеме. Получают, по существу, незагрязненные испарения, в которых по меньшей мере около 80 вес.% загрязняющих веществ разрушено.

MOBILE RECULTIVATOR OF SOIL

Apparatus for Separation of Constituents From Matrices

The present invention provides an apparatus useful for the separation of hazardous and non-hazardous organic and inorganic constituents from various matrices. A method of separating such constituents is also provided.

Thermal Treatment of a Contaminated Volume of Material.

A method is provided for remediating porous contaminated material. In the method, fuel material is combined with the contaminated material and a smoldering combustion process is initiated in the contaminated material to remediate the contaminated material. Control systems are provided to control the smoldering combustion process. The contaminated material may include oily waste, asbestos fibers, and/ or at least one of a chlorinated solvent, a polychlorinated biphenyl (PCB), a dioxin, a furan and a polynuclear aromatic hydrocarbon (PAH).

SYSTEMS AND METHODS FOR COLLECTING AND PROCESSING PERMAFROST GASES, AND FOR COOLING PERMAFROST

Systems and methods for collecting and processing permafrost gases and for cooling permafrost are disclosed herein. A method in accordance with a particular embodiment for processing gas in a permafrost region includes obtaining a gas from a sacrificial area of a thawing permafrost region, dissociating the gas in a non-combustive chemical process, and circulating a constituent of the gas through a savable area of the thawing permafrost region to cool the savable area. In particular embodiments, this process can be used to cool selected areas of permafrost and/or create clean-burning fuels and/or other products from permafrost gases. 1. A system for cooling permafrost , comprising:a chemical reactor coupled to a source of gas located at a first permafrost region to conduct a non-combustion reaction that dissociates the gas into first and second constituents;a first conduit portion coupled to the chemical reactor to convey the first constituent in a gas phase to an intermediate location, the intermediate location having a higher elevation than an elevation of the chemical reactor;a phase change device located at the intermediate location to change the phase of the first constituent from the gas phase to a liquid phase;a second conduit coupled to the phase change device to convey the first constituent in the liquid phase to a second permafrost region; anda heat exchanger coupled to the second conduit to receive the first constituent in the liquid phase, the heat exchanger being positioned to transfer heat from the second permafrost region to the first constituent, the heat exchanger having a lower elevation than the elevation of the intermediate location.2. The system of wherein the phase change device includes a heat exchanger.3. The system of wherein the phase change device includes a condenser.4. The system of wherein the phase change device includes a compressor.5. The system of wherein the constituent is a first constituent claim 1 , and wherein the system further ...

Thermal treatment of a contaminated volume of material

A method for treating a volume of porous contaminated material is described. A combustible mixture ( 24 ) comprising a porous matrix and a distributed combustible contaminant is conveyed to a reaction vessel ( 12 ) having an ignition system ( 16 ). The ignition system is activated to initiate a smoldering combustion process in the reaction vessel and an oxidizer is distributed into the reaction vessel to sustain the smoldering combustion process. The porous matrix may comprise drill cuttings ( 324 ) with residual drilling fluid.

Hydrocarbon sorbent materials

Sorbent polymers which are selective to taking up hydrocarbons are provided for separating hydrocarbons from fluids and taking up hydrocarbons from off of and intermixed with solid materials. The hydrocarbons may at least partially be expressed out of and recovered from the polymer by squeezing. The polymers may be re-used for picking up additional hydrocarbons. Methods for producing and using the polymers are also provided.

BIOREMEDIATION OF PERSISTENT ORGANIC POLLUTANTS USING THERMOPHILIC BACTERIA

The present application relates to a method of degrading organic contaminants in contaminated soil, sediment or wastewater, the method being carried out by treating the contaminated soil, sediment or wastewater with thermophilic bacterium capable of degrading the organic contaminants. 1. A method of degrading persistent organic pollutants present in soil , sediment or wastewater , in-situ , said method comprising:(a) pretreating the soil, sediment or wastewater using a suitable first delivery system;(b) exposing the soil, sediment or waste water to a thermophilic bacterium capable of degrading organic contaminants using a second delivery system, together with a growth substrate and/or oxygen;(c) subjecting soil, sediment or wastewater to heat treatment for a period of time sufficient to result in marked reductions in the levels of organic contaminants;(d) aerating the soil, sediment or wastewater at the same time or before the introduction of the heat treatment; and(e) monitoring the degradation of the organic contaminants.2. The method of claim 1 , wherein the first delivery system and the second delivery system are identical.3. The method of claim 1 , wherein the delivery system in step (a) consists of (i) borings either vertical or horizontal claim 1 , or galleries installed at a site to be remediated into which are inserted hollow pipes or geoprobes or properly designed well screens capable of transmission of fluids claim 1 , gases and suspensions therein; or (ii) equipment designed and manufactured specifically to manage waste flows in the form of batch or continuous extractions claim 1 , centrifugation claim 1 , sonic disruption claim 1 , hydraulic fracturing claim 1 , or similar methods of infusion of fluids and suspensions4. The method of claim 1 , wherein the delivery system in step (b) consists of (i) borings either vertical or horizontal claim 1 , or galleries installed at a site to be remediated into which are inserted hollow pipes or geoprobes or ...

TWO-STAGE REMEDIATION OF PARTICULATE MATERIAL

Methods and systems are provided for two-stage treatment of contaminated particulate material, such as soil, sediment, and/or sludge. The methods and systems utilize a thermal desorption process combined with a smoldering combustion process. The contaminated particulate material is first exposed to thermal desorption at high temperatures (e.g., greater than 150° C.) to form a heated contaminated particulate material. Next, a smoldering combustion process is initiated by introducing a combustion-supporting gas. The combined process can take place in the same or different treatment units. Treating the particulate material with a thermal desorption process prior to a smoldering combustion process enhances the completeness and throughput compared to operating these processes separately. 1. A two-stage process for treating particulate materials containing organic contaminants comprising:removing an amount of contaminated particulate material from its location;transferring the contaminated particulate material to a thermal desorption unit;subjecting the contaminated particulate material to a thermal desorption process, wherein the thermal desorption process includes heating the contaminated particulate material to volatilize a portion of the organic contaminants and to form a preheated contaminated particulate material, and collecting the volatilized organic contaminants outside of the thermal desorption unit;transferring the preheated contaminated particulate material to a smoldering combustion unit; andsubjecting the preheated contaminated particulate material to a smoldering combustion process, wherein the smoldering combustion process includes admitting the preheated contaminated particulate material to a smoldering combustion unit having an inlet for a contaminated particulate material and an outlet for a treated particulate material to be withdrawn from the unit, operating the smoldering combustion unit under conditions sufficient to ignite a smoldering combustion ...

REMEDIATION OF CONTAMINATED SOIL AND WATER USING ENHANCED STIMULATORS

A contaminated medium (such as soil and/or groundwater) contaminated with petrogenic and/or other organic contaminants such as petroleum hydrocarbons, light non- aqueous phase liquids (NAPLs), dense non-aqueous phase liquids (DNAPLs), persistent organic pollutants (i.e. sulfolane), chlorinated compounds, and volatile organic compounds, can be mixed with enhanced stimulators and be thermally remediated. The enhanced stimulators are heat induced to undergo exothermic reactions, which initiate a series of in-situ chemical reactions to such as to produce hydrogen gas. The hydrogen gas causes hydrocracking of heavy hydrocarbons to produce light hydrocarbons which can be recovered such as for future use. 1. A method of remediating a contaminated medium , wherein said medium is contaminated with at least one of petrogenic and organic contaminants , the method comprising:pre-treating the contaminated medium by admixing one or more enhanced stimulators therewith to produce a pre-treated contaminated medium; andincreasing a temperature of the pre-treated contaminated medium to induce at least a portion of the enhanced stimulators to undergo exothermic reactions for initiating a series of chemical reactions in the pre-treated contaminated medium to produce a thermally remediated medium substantially reduced in a concentration of at least one contaminant relative to said contaminated medium, and a vaporized contaminant.2. The method of claim 1 , wherein the contaminated medium comprises at least one of a contaminated soil medium and a contaminated water medium.3. The method of claim 1 , wherein the vaporized contaminant comprises a vaporized hydrocarbon.4. The method of claim 1 , wherein the enhanced stimulators comprise a chemical blowing agent claim 1 , and wherein increasing a temperature of the pre-treated contaminated medium further comprises inductively heating the pre-treated contaminated medium to induce the chemical blowing agent to undergo an exothermic reaction.5. ...

SYSTEM AND METHOD FOR BIOREMEDIATION OF SOIL

Systems and methods for performing bioremediation using the sp. bacterial strain are provided which are capable of effectively degrading Benzo[a]pyrene (BaP) and efficiently degrading other ring-based organic contaminants. The exemplary bioremediation methods include steps for administering an effective, degrading amount of the bacteria to soil containing excess amounts of BaP and incubating the bacteria administered to the soil at a given temperature and for a duration that are suitable for promoting incubation and reducing and the concentration of BaP below a maximum concentration, as might be specified by a regulatory body. 1. A method for bioremediation of soil , sediment or wastewater containing benzo[a]pyrene (BaP) , the method comprising the steps of:{'i': 'Geobacillus midousuji', 'administering , or a mutant derived therefrom, to the soil, sediment or wastewater to be bioremediated; and,'}{'i': 'Geobacillus midousuji', 'incubating the in the soil, sediment or wastewater at a temperature ranging from about 40 to about 70° C. and a humidity ranging from about 80% to about 100% for a period of time ranging from about 1 hour to about 20 days.'}2Geobacillus midousuji. The method of claim 1 , wherein the is strain SH2B (American Type Culture Collection (ATCC) No. 55926) claim 1 , strain SH2A (ATCC No. 202050) claim 1 , or mixtures thereof.3. The method of claim 1 , wherein the BaP concentration in the soil claim 1 , sediment or wastewater after incubation is less than about 100 parts per million (PPM).4. The method of claim 3 , wherein the BaP concentration in the soil claim 3 , sediment or wastewater after incubation is less than about 50 PPM.5. The method of claim 4 , wherein the BaP concentration in the soil claim 4 , sediment or wastewater after incubation is less than about 20 PPM.6Geobacillus midousuji. The method of claim 1 , wherein the to the soil claim 1 , sediment or wastewater ratio ranges from about 0.01% to about 1% w/w.7. The method of claim 6 , ...

APPARATUS FOR TREATING MERCURY-CONTAINING WASTE AND METHOD FOR RECOVERING HIGH PURITY ELEMENTAL MERCURY USING SAME APPARATUS

The present invention relates to an apparatus for treating waste containing mercury and a method for recovering high purity elemental mercury using the apparatus. More specifically, the present invention may provide a method that can more economically and stably recover high purity elemental mercury from waste containing mercury using an apparatus for recovering mercury from waste containing mercury, the apparatus comprising: a thermal desorption unit; a dust control unit; and a condensation and recovery unit, which are connected in series. The present invention has an advantage in that, compared to a conventional simple heat treatment-condensation method, a high recovery rate of mercury is achieved and high purity mercury can be obtained. 1. An apparatus for recovering mercury from mercury-containing waste , the apparatus comprising:a thermal desorption unit configured to separate mercury from the mercury-containing waste;a dust control unit configured to remove impurities from the separated mercury; anda condensation recovery unit configured to condense and recover the mercury from which the impurities have been removed.2. The apparatus of claim 1 , wherein the thermal desorption unit is an atmospheric pressure or vacuum thermal desorption unit.3. The apparatus of claim 1 , wherein the dust control unit is operated at a temperature between a condensation temperature of the impurities and a condensation temperature of mercury.4. The apparatus of claim 2 , wherein the thermal desorption unit is operated at a pressure and temperature at which mercury is vaporized from the mercury-containing waste.5. The apparatus of claim 1 , wherein the thermal desorption unit claim 1 , the dust control unit and the condensation recovery unit are operated at the same pressure.6. The apparatus of claim 3 , wherein the dust control unit includes a porous filter claim 3 , and is operated at a temperature lower than the operating temperature of the thermal desorption unit so that ...

FEEDBACK LOOP CONTROL FOR SOIL EVAPORATIVE DESORPTION

Active or closed feedback/feed forward loop controls may be used to improve operation of a thermal desorption process. Characteristics of the thermal desorption process may be monitored, e.g., carbon monoxide concentration, and then may be used to predict the end point of the thermal desorption process. Inputs and effluent treatment elements may also be modulated to further optimize the treatment time and quality (completeness) and to avoid any unwanted effects associated with excess processing. Post-treatment gas comprising non-condensed condensable hydrocarbon contaminants may be recycled as pre-treatment gas or used to heat fresh air. Mean free paths of the exhaust gas exiting a thermal desorption chamber are restricted to limit the flame propagation and explosion fronts. Temperature and concentration of flammable elements may be monitored and controlled to prevent explosion hazards. An isolation valve and a pressure relief chimney may also be coupled to the exhaust of the thermal desorption chamber. 1. A thermal desorption soil remediation system , comprising:a treatment chamber; a treatment gas exit pathway, wherein treatment gas exits the treatment chamber; a carbon monoxide concentration monitoring means, and wherein an adjustment of at least one of an oxygen concentration of the treatment gas and a temperature of the treatment gas is based on an input from the carbon monoxide concentration monitoring means.2. The system of claim 1 , further comprising:wherein the carbon monoxide concentration monitoring means monitors carbon monoxide at at least one of the treatment gas exit pathway, a heat exchanger, a heat exchanger cooler, a phase separator, a gas extraction fan, and a flame arrester.3. The system of claim 1 , further comprising:wherein the oxygen concentration of the treatment gas is adjusted to at, above or below a threshold when the carbon monoxide concentration is at, above or below a threshold.4. The system of claim 1 , further comprising:wherein the ...

Method for Manipulating Smoldering Combustion to Remediate Porous Media Impacted by Recalcitrant Compounds

A method for remediating a contaminated porous matrix including selecting the type and quantity of organic fuel to create a smolderable mixture of the organic fuel and contaminated porous matrix, and controlling the rate of oxidant addition to manipulate the relative proportions of oxidative breakdown products, non-oxidative breakdown products, and non-destructive remediation processes. The method further involves collecting the volatilized contaminant, and any gaseous breakdown products of the contaminant. 1. A method for remediating contaminated porous matrix material , the method comprising:selecting the type and quantity of an organic fuel;creating a smolderable mixture of the organic fuel and a contaminated porous matrix material;initiating the self-sustaining smoldering combustion of the smolderable mixture;controlling the rate of oxidant addition to the smolderable mixture, so that at least a collectible portion of a contaminant is volatilized; andcollecting the volatilized contaminant.2. A method for remediating contaminated porous matrix material comprising:selecting the type and quantity of an organic fuel;creating a smolderable mixture of the organic fuel and a contaminated porous matrix material;initiating the self-sustaining smoldering combustion of the smolderable mixture;controlling the rate of oxidant addition to the smolderable mixture, so that a portion of a contaminant is broken down into at least one collectable portion of a gaseous breakdown product, and so that at least a collectible portion of the contaminant is volatilized;collecting the volatilized contaminant and the gaseous breakdown product of the contaminant.3. A method according to wherein the gaseous breakdown product is formed from the contaminant by oxidative destruction claim 2 , thermal degradation claim 2 , or some combination thereof.4. A method according to wherein the relative proportions of breakdown product due to oxidative destruction claim 3 , breakdown product due to ...

METHOD AND SYSTEM FOR DECONTAMINATING SAND

A method for treating contaminated sand from a production waste pit, the method includes pre-treating the contaminated sand to recover at least one non-radioactive contaminant from the contaminated sand, washing the contaminated sand with a dissolver solution and water to remove naturally occurring radioactive material from the sand, recovering the dissolver solution from the sand, treating the water to remove all contaminants, and collecting the treated sand. 1. A method for treating contaminated sand from a production waste pit , the method comprising:pre-treating the contaminated sand to remove one or more non-radioactive materials;washing the contaminated sand with a dissolver solution and water to remove naturally occurring radioactive material from the sand;recovering the dissolver solution from the sand; andcollecting the treated sand.2. The method of claim 1 , further comprising regenerating the dissolver solution.3. The method of claim 2 , wherein regenerating the dissolver solution further comprises:pumping dissolver solution into a dissolver regeneration vessel;dosing acid into the dissolver regeneration vessel;precipitating naturally occurring radioactive material and other solids from the dissolver solution;removing brine from the dissolver regeneration vessel; andpumping fresh water and a base into the dissolver regeneration vessel to reconstitute the dissolver solution.4. The method of wherein the pre-treating step further comprises:directing the contaminated sand into a feed hopper;heating water;directing a portion of the heated water into the feed hopper;slurrying the water and the contaminated sand in the hopper;directing the slurry to a hydrocyclone; anddirecting an underflow of the hydrocyclone to an Elutriation column to remove hydrocarbon from the sand.5. The method of claim 4 , wherein the heating water step further comprises heating the water to approximately 80 degrees C.6. The method of claim 4 , wherein the pre-treatment step further ...

Site Remediation System and A Method of Remediating A Site

A site remediation system for remediating a site including a liquid recirculation mechanism for taking liquid to be remediated from the site, heating the liquid along the liquid recirculation mechanism, optionally treating the liquid using a bioremediation mechanism, and then returning the liquid to the site at an elevated temperature. 1. A site remediation system for remediating a site , the system comprising:a liquid recirculation mechanism powered by a low energy power source, the liquid recirculation mechanism comprisinga liquid extraction component for extracting liquid to be remediated from a substrate at the site; anda heater component for heating the extracted liquid, in turn, to increase a subsurface temperature of the substrate upon re-injection of the heated liquid into the substrate; anda bioremediation mechanism arranged downstream of the heater component of the liquid recirculation mechanism, the bioremediation mechanism comprising a liquid treatment unit for treating the heated liquid prior to re-injection of the liquid into the substrate to effect enhanced substrate bioremediation via bio-degradation of contaminants at the site.2. The system of in which the liquid recirculation mechanism is configured to extract contaminated liquid from claim 1 , or downgradient of a fringe of claim 1 , a plume and to re-inject the heated claim 1 , treated liquid into claim 1 , or upgradient of claim 1 , a source zone of the plume.3. The system of in which the liquid extraction component comprises at least one extraction pump.4. The system of in which the at least one extraction pump is a solar powered pump.5. The system of in which the heater component comprises at least one solar collector.6. The system of in which the heater component comprises an array of solar collectors.7. The system of in which the heater component is configured to heat the liquid to a temperature in a range of about 20° C.-50° C.8. The system of in which the heater component is configured to ...

SYSTEMS AND METHODS FOR TREATING CONTAMINATED MATERIALS

Systems for treating contaminated soil are described herein. One system includes a soil chamber that includes one or more walls and at least one floor; at least one heater attached to or inside of at least one of the walls; and at least one heater coupled to or in the floor. Two or more of the walls enclose an interior of the soil chamber. At least one of the walls is configured to move between a closed position during heating of the soil chamber, and an open position that allows a soil moving vehicle to access an interior of the soil chamber to provide or remove soil to and from the soil chamber. At least one wall heater and at least one floor heater provide heat that transfers from the heaters to the contaminated soil in the soil chamber. 132-. (canceled)33. A contaminated soil treatment system , comprising: a soil chamber comprising:one or more walls and at least one floor;at least one heater attached to or inside of at least one of the walls;at least one heater coupled to or in the floor; wherein two or more of the walls enclose an interior of the soil chamber, and wherein the at least one wall heater and the at least one floor heater provide heat that transfers from the heaters to a portion of the wall and a portion of the floor, and then to the contaminated soil in the soil chamber; andat least one conduit coupled to at least one of the walls, wherein the conduit is configured to provide fluid to the soil chamber during use; andwherein at least one of the walls is configured to move between a closed position during heating of the soil chamber and an open position that allows access to an interior of the soil chamber to provide or remove soil to and from the soil chamber.34. The contaminated soil treatment system of claim 33 , wherein the open position is sufficient to allow a soil moving vehicle to enter the soil chamber.35. The contaminated soil treatment system of claim 33 , wherein an end of the conduit is positioned in a soil pile.36. The contaminated soil ...

SYSTEMS AND METHODS FOR THERMAL DESTRUCTION OF UNDESIRED SUBSTANCES BY SMOLDERING COMBUSTION

Porous media containing undesired substances, e.g., perfluoroalkylated substances, are treated by mixing the porous media with a solid fuel comprising organic material. The mixture is heated to 200° C. to 400° C. to initiate smoldering combustion and an oxidizer gas is forced through the heated mixture such that the smoldering combustion is self-sustaining until the mixture reaches a PFAS destructive temperature and the perfluoroalkylated substances are thermally destroyed. A system is provided for conducting the treatment. The system includes a source of wax, wood chips, sawdust, tire scraps, waste rubber compounds, coal, granular activated carbon, solid fat, and combinations thereof as solid fuel. A mixer is provided for mixing the porous media with the solid fuel. An ignition system including static heating elements and a gas blower are provided for forcing heated oxidizer gas through the mixture such that self-sustaining smoldering combustion of the mixture is initiated and sustained. 1a. adding a solid fuel comprising organic material to the porous media containing the undesired substance to form a mixture that is capable of reaching an undesired substance destructive temperature of at least 800° C., wherein the mixture comprises from 1 to 5% of the solid fuel by vol;b. heating a portion of the mixture to 200° C. to 400° C. to form a heated mixture and to initiate smoldering combustion of the heated mixture;c. initiating a flow of an oxidizer gas through a portion of the heated mixture and controlling the flow at a rate such that the smoldering combustion of the heated mixture is self-sustaining; and 'wherein the porous media comprises soil and the undesired substance comprises a perfluoroalkylated substance.', 'd. continuing the self-sustaining smoldering combustion of the mixture until the mixture reaches the undesired substance destructive temperature of at least 800° C.;'}. A method for treating porous media containing an undesired substance, comprising: ...

RECYCLING METHOD AND APPARATUS FOR SOIL CONTAMINATED WITH MERCURY AND DIOXIN

The present disclosure provides a method for recycling soil contaminated with mercury and dioxin. The method includes: desorbing mercury and dioxin from the contaminated soil by an indirect rotary furnace; condensing the mercury and discharging it by a condensing and discharging unit; and a secondary indirect burner for decomposing dioxin at a high temperature, so as for the concentration of the contaminants in the exhaust being examined to meet regulation standards and the treated soil to meet the current regulations. The present disclosure also provides an apparatus for recycling contaminated soil containing mercury and dioxin. 1. An apparatus for treating soil contaminated with mercury and dioxin , comprising:an indirect heating rotary furnace configured to hold and heat treat the contaminated soil for the mercury and the dioxin to desorb from the contaminated soil to generate exhaust containing the mercury and the dioxin and treated soil;a treated soil storage tank in communication with the indirect heating rotary furnace, and configured to receive the treated soil;a first dust-collecting unit in fluid communication with the indirect heating rotary furnace, and configured to collect dust from the exhaust;a condensing and recovering unit in fluid communication with the first dust-collecting unit, and configured to condense mercury vapor in the exhaust and discharge liquid mercury;a secondary indirect burner in fluid communication with the condensing and recovering unit, and configured to heat treat the exhaust and decompose the dioxin in the condensed exhaust;a second dust-collecting unit in fluid communication with the secondary indirect burner, and configured to collect the dust from the exhaust in the secondary indirect burner; anda chimney in communication with the second dust-collecting unit, and configured to discharge the exhaust from the second dust-collecting unit into air.2. The apparatus of claim 1 , further comprising a dewatering unit disposed ...

Induction heating system for thermal desorption processes

Contaminate soil can be treated using inductive energy. An inductive generator can generate inductive power to heat inductively heatable elements disposed in the contaminate soil or in a soil box. Input treatment gas can pass through the heated soil to remove contaminants in the soil to the exhaust. The inductively heatable elements can be placed in a mesh conduit, which can heat the input treatment gas. 1. A method comprising:forming a mixed soil by supplying inductively heatable elements to a contaminate soil;bringing the mixed soil to a treatment chamber;generating a magnetic field in the treatment chamber for inductively heating the inductively heatable elements;removing contaminants in the mixed soil.2. A method as inwherein bringing the mixed soil to the treatment chamber comprises putting the mixed soil in a soil box and bringing the soil box to the treatment chamber.3. A method as inwherein the soil is mixed by supplying inductively heatable elements to a soil box containing contaminate soil.4. A method as in further comprising:supplying a treatment gas to the treatment chamber, wherein the treatment gas passes through the mixed soil to remove the contaminants.5. A method as in further comprising:inductively heating a treatment gas before supplying the heated treatment gas to the treatment chamber, wherein the treatment gas passes through the mixed soil to remove the contaminants.6. A method as in further comprising:removing the inductively heatable elements from the mixed soil.7. A method as in further comprising:placing a magnet near the mixed soil to remove the inductively heatable elements from the mixed soil.8. A method comprising:bringing a soil box to a treatment chamber, wherein the soil box is configured to contain a contaminate soil, wherein the soil box comprises at least a mesh conduit, wherein the mesh conduit comprises inductively heatable elements disposed in the mesh conduit;flowing a treatment gas to a mesh conduit;generating a magnetic ...

In-situ thermal desorption processes

Contaminated soil can be in-situ cleaned without an excavation process. Heated gas can be injected to the contaminated soil to heat the soil for vaporizing the contaminants. Vacuum extraction can be used for extracting the volatile contaminants. Cool air can be injected to the cleaned soil to prevent total organic carbon degradation.

Uniform vapor pathways for soil evaporative desorption

Disclosed is a method and a system of uniform vapor pathways for soil evaporative desorption. In one embodiment, a batch of contaminated soil is placed inside a treatment compartment through a hopper. The contaminated soil is moved across an inner length of the treatment compartment. As the contaminated soil moves toward a far end of the treatment compartment, planes surrounding the contaminated soil vibrates to facilitate mixing and loosening of the contaminated soil, thereby creating uniform vapor pathways around the surface and within the contaminated soil. A plurality of helical stem auger comprising helical flights may rotate to further mix and loosen the contaminated soil. Heat is applied to the contaminated soil to desorb contaminates within the soil. A vapor extraction line within a core of the hollow stem auger suctions vaporized contaminates out of the treatment compartment and into a reclamation system. 1. A thermal desorption soil remediation system , comprising:a treatment compartment;at least one rod comprising a plurality of helical flights positioned within an inner length of the treatment compartment and configured to rotate,wherein the rotation of the at least one rod facilitates mixing of contaminated soil within the treatment compartment;at least one heater configured to deliver heat to the contaminated soil;at least one vapor extraction line configured to extract vaporized volatile contaminates from the contaminated soil.2. A system of claim 1 , further comprising:wherein the at least one vapor extraction line is positioned within a core of the at least one rod.3. A system of claim 2 , further comprising:wherein the at least one rod comprises a plurality of slits between the plurality of helical flights coupled to the at least one vapor extraction line.4. A system of claim 2 , further comprising:wherein the at least one rod comprises a plurality of holes between the plurality of helical flights coupled to the at least one vapor extraction line.5 ...

High resolution modular heating for soil evaporative desorption

Disclosed is a method and a system of high resolution modular heating for soil evaporative desorption. In one embodiment, a soil box comprising contaminated soil is mounted within a treatment chamber. Heated gas are directed into the soil box through a plurality of injection ports. A heat front from the heated gas desorbs the surrounding contaminated soil. The delivery of the heated gas may be in sections and independently controlled among the plurality of injection ports. A bottom section of the soil box is heated prior to a top section to minimize or reduce condensation formation within lower areas of the soil box, thereby creating roadways of desiccated, heated, and/or cracked soil at the bottom section. Vaporized contaminants from the top section is able to flow freely through the roadways to get to an exit pathway at the bottom of the soil box. 1. A thermal desorption soil remediation system , comprising:a treatment chamber; 'wherein a heat front from the heat dispersing structure is used to desorb contaminated soil in the soil box; and', 'at least one injection port coupled to an outside wall of a soil box when the soil box is mounted within the treatment chamber, wherein the at least one injection port is configured to direct pre-treatment gas from a source into a heat dispersing structure of the soil box,'}a top section of the soil box and a bottom section of the soil box configured to receive pre-treatment gas from the heat dispersing structure at different time intervals.2. A system of claim 1 , further comprising:an injection port sleeve coupled to the at least one injection port configured to retract when a door of the treatment chamber is open.3. A system of claim 1 , further comprising:wherein the top section only receives pre-treatment gas after completion of treatment at the bottom section.4. A system of claim 1 , further comprising:an exhaust valve positioned at a post-treatment gas exit pathway configured to release post-treatment gas from the soil ...

SYSTEMS AND METHODS FOR IN-SITU CLEAN UP OF BURNABLE MATERIALS

The present disclosure provides devices and methods for cleaning up or burning spills of burnable materials in situ. In some embodiments, a system for burning a burnable material comprises a base having a first side configured for placement on a surface with a burnable material and a second side; and a plurality heat conducting members extending from the second side of the base. 1) A system for burning a burnable material comprising:a base having a first side configured for placement on a surface with a burnable material and a second side; anda plurality heat conducting members extending from the second side of the base.2) The system of claim 1 , wherein the base is a porous matrix.3) The system of claim 1 , wherein the base is a planar screen.4) The system of claim 1 , wherein the heat conducting members are shaped to have a high surface area to volume ratio.5) The system of claim 1 , wherein the heat conducting members are formed from metallic wire.6) The system of claim 1 , wherein the heat conducting members are disposed only at the periphery of the base.7) The system of further including an enclosure around the base.8) A method for burning a burnable material comprising:placing on top of a burnable material a first side of a porous matrix, wherein a plurality of heat conducting members extend from a second side of the porous matrix;allowing the porous matrix to absorb at least some of the burnable material; andigniting the burnable material.9) The method of claim 8 , wherein the heat conducting members are shaped to have a high surface area to volume ratio.10) The method of claim 8 , wherein the heat conducting members are formed from metallic wire.11) The method of claim 8 , wherein the heat conducting members are disposed only at the periphery of the base.12) The method of further comprising disposing an enclosure around the porous matrix and the burnable material.13) The method of further comprising moving the porous matrix along the burnable material.14) ...

MICROWAVE-ENABLED THERMAL REMEDIATION OF ORGANIC CHEMICAL CONTAMINATED SOILS USING DIELECTRIC NANOMATERIALS AS ADDITIVES

A soil remediation method for treating contaminated soil includes combining a dielectric carbonaceous nanomaterial with the contaminated soil to yield a composite contaminated soil, and irradiating the composite contaminated soil with microwave radiation to yield a remediated soil. The composite contaminated soil includes at least 1 wt % of the dielectric carbonaceous material, and the microwave radiation provides an energy input of at least 2.5 kWh per kilogram of the composite contaminated soil. 1. A soil remediation method for treating contaminated soil , the method comprising:combining a dielectric carbonaceous nanomaterial with the contaminated soil to yield a composite contaminated soil; andirradiating the composite contaminated soil with microwave radiation to yield a remediated soil, wherein the composite contaminated soil comprises at least 1 wt % of the dielectric carbonaceous material, and the microwave radiation provides an energy input of at least 2.5 kWh per kilogram of the composite contaminated soil.2. The soil remediation method of claim 1 , wherein the contaminated soil comprises at least 0.2 wt % of hydrocarbons having 12 to 40 carbon atoms.3. The soil remediation method of claim 1 , wherein a water content of the contaminated soil is in a range of 20 wt % to 80 wt % of the water holding capacity of the soil.4. The soil remediation method of claim 1 , wherein the composite contaminated soil comprises less than 10 wt % of the dielectric carbonaceous nanomaterial.5. The soil remediation method of claim 1 , wherein the microwave radiation has a power in a range of 500-3000 W claim 1 , a frequency in a range of 300 MHz to 300 GHz claim 1 , or both.6. The soil remediation method of claim 1 , wherein the microwave radiation provides an energy input of at least 5 kWh per kilogram of composite contaminated soil.7. The soil remediation method of claim 1 , further comprising irradiating the composite contaminated soil with the microwave radiation for a ...

Site Heavy Metal Contaminated Soil Treatment Equipment and Treatment Method Therefor

An on-site heavy metal contaminated soil treatment apparatus, comprising a sampling system, a molding system, a heat processing system and a tail gas processing system disposed in sequence. The sampling system includes a bucket elevator and a planetary stirring device which are connected in sequence and are disposed on a mobile platform of the sampling system. The apparatus is easy to move and assemble, has a small floor area, and can be built on a target contaminated site, reducing transportation costs and the risk of secondary contamination. The entire process performed by the apparatus proceeds automatically, reducing labor costs. The planetary stirring sampling method and automatic brick blank extrusion molding process of the apparatus are applicable to various types of heavy metal contaminated soil providing high processing efficiency and good molding effect. Combined microwave heating and high-temperature steam heating provide rapid heating, small thermal inertia, and easy temperature control. 1. An on-site heavy metal contaminated soil treatment apparatus comprising a sampling system , a molding system , a heat processing system and a tail gas processing system which are disposed in sequence;the sampling system comprises a bucket elevator and a planetary stirring device which are connected in sequence and are both disposed on a mobile platform;the molding system comprises a vacuum extruder, a first conveyor belt, a second conveyor belt, a cutter's station, a first mobile platform and a second mobile platform which are disposed in sequence, wherein a first cutter for cutting brick blanks from the vacuum extruder is arranged above the first conveyor belt, and a second cutter for cutting strip brick blanks into block brick blanks is arranged above the cutter's station, the second conveyor belt is disposed at one side of the cutter's station, the vacuum extruder is located on the first mobile platform, the first conveyor belt and the cutter's station arc located ...

Substrate for Controlling Flies and Other Insects, Method for Manufacturing Thereof and Use of Said Substrate as Animal Litter

A substrate designed to be used as animal litter, for controlling insects, preferably flies, in which the substrate includes an absorbent substrate impregnated with at least one insect growth regulator (IGR) in a preferred determined concentration, and where the substrate is preferably impregnated with a formulation including, in addition to the growth regulator, a film-forming substance, a water insoluble particulate mineral material, an organic solvent, one or more additives and water. A method for obtaining the substrate impregnated with the formulation is also disclosed, as well as using the substrate as animal litter for controlling insects. Use of the waste resulting from the mix of the substrate with manure, after it has been used as animal litter, as organic compost for agricultural soils by subjecting it to a process of stabilization and degradation by means of biosolarisation is also disclosed. 1. A substrate for controlling insects , comprising an absorbent substrate impregnated with at least one insect growth regulator.2. The substrate for controlling insects according to claim 1 , wherein the insect growth regulator is selected from the group consisting of pyriproxyfen claim 1 , methoprene claim 1 , hydropren claim 1 , diflubenzuron claim 1 , triflumuron claim 1 , fenoxycarb claim 1 , tebufenozide claim 1 , metoxifenocide claim 1 , cyromazine claim 1 , and a combination thereof.3. The substrate for controlling insects according to claim 2 , wherein the insect growth regulator is selected between pyriproxyfen and cyromazine.4. The substrate for controlling insects according to claim 1 , wherein a concentration of the insect growth regulator in the absorbent substrate is comprised between 1 mg/kg and 6000 mg/kg by weight of a weight of the absorbent substrate.5. The substrate for controlling insects according to claim 1 , comprising an absorbent substrate impregnated with a formulation comprising:between 0.005 and 10% of at least one insect growth ...

HEAT PIPE-ENHANCED HEAT ACCUMULATION TYPE INDIRECT THERMAL DESORPTION-BASED SOIL REMEDIATION DEVICE AND METHOD

A heat pipe-enhanced heat accumulation type indirect thermal desorption-based soil remediation device and method. On the one hand, by using thermal desorption gas generated by soil through heating and volatilizing as a heat transfer medium and by a circular heating manner, hot air efficiently transfers heat to the soil by contact, the treatment capacity of equipment is high. Moreover, high-temperature flue gas is kept from direct contact with the soil, so the high-temperature flue gas is prevented from being mixed with gaseous organic contaminants. Therefore, only a small amount of excess gas needs to be purified, so the equipment scale is small. On the other hand, by equipping a reactor with heat pipes and a ceramic heat accumulator, a second soil heating manner is provided, so that the heat transfer capacity per unit volume of the reactor is increased, and the treatment efficiency is significantly improved under the same scale. 1. A heat pipe-enhanced heat accumulation type indirect thermal desorption-based soil remediation method , wherein in the method , contaminated soil is conveyed by a feeding device to a feed end of a drum and heated in two manners; in the first manner , hot air at 550-650° C. from an outlet of a hot air heater enters the drum from a circulating hot air inlet of a discharge end fixed hood and transfers heat with the contaminated soil by direct countercurrent contact such that the contaminated soil is heated; in the second manner , a heat accumulator at a bottom of the drum releases heat through heat pipes such that the contaminated soil is heated; as the temperature of the contaminated soil gradually rises to about 300-500° C. , water and organic contaminants in the soil are volatilized into a gaseous state and carry dust to become thermal desorption offgas that is separated from the solid soil , and the treated soil is discharged from a treated soil outlet of the discharge end fixed hood; andthe thermal desorption offgas generated by the ...

MEDIUM INTERNAL CIRCULATION ENHANCED THERMAL DESORPTION SOIL REMEDIATION REACTOR AND METHOD THEREOF

A medium internal circulation enhanced thermal desorption soil remediation reactor and a method thereof, and belongs to the technical field of soil remediation. Internal circulation of a thermal medium is realized through a specially designed rotary drum structure, and a way for heating soil by utilizing oxidative decomposition of organic contaminants is provided, so that the treatment efficiency of an apparatus and the contaminant removal effect are improved significantly on the premise of not increasing the scale of the apparatus, and at the same time, the energy consumption of a system is reduced. 1. A medium internal circulation enhanced thermal desorption soil remediation reactor , comprising a feeding device with a raw soil inlet , a feeding end fixing cover , a rotary drum and a discharging end fixing cover with a treated soil outlet , wherein a thermal medium is provided in the rotary drum , a discharging end of the rotary drum is provided with a material blocking sieve plate configured to separate soil from the thermal medium , a collecting groove in inclined arrangement is provided on the discharging end fixing cover , and a groove body of the collecting groove passes through the material blocking sieve plate to go deep into the rotary drum so that the thermal medium lifted up by shovelling plates is able to fall into the groove and roll onto a track formed by internal pipe bundles;an outer cover with 2 smoke gas inlets and 1 smoke gas outlet is provided at the outer side of the rotary drum, the internal pipe bundles are disposed in an inner cavity of the rotary drum, a smoke gas inlet of the internal pipe bundles communicates with the smoke gas inlet of the outer cover, and the smoke gas outlet of the internal pipe bundles communicates with the smoke gas outlet in the outer cover;an area between the outer side of the rotary drum and the inner side of the outer cover is a smoke gas jacket, the other smoke gas inlet of the rotary drum communicates with the ...

Sintered Wave Porous Media Treatment, Apparatus and Process for Removal of Organic Compounds and Nondestructive Removal and Condensation of Per and Polyfluoroalkyl Substances and related fluorinated compounds

Sintered Wave Porous Media Treatment and Apparatus and Process is disclosed, which uses an automated static enclosed arrangement to efficiently remove water, organic contaminants (petroleum, solvents, pcbs, pesticides) and per- and polyfluoroalkyl substances (PFAS) and fluorinated related compounds from large volumes of porous media such as a mixture of soil, gravel, rocks, sediments or other porous media. The Sintered Wave technology is a multipurpose treatment device that uses a Sinter Craft as a treatment vessel that allows earth moving machines to easily enter and exit during loading/unloading. The soil is then conditioned to accommodate treatment by sintering (densifying) by vibrating the soil bed, which removes soil vapor and fluids. The soil bed is then shaped by placing hexagonal holes or slots containing 120 degree angles from top to the bottom of the soil bed. The sintered and shaped soil bed is treated in a sequential manner (small sections at a time) with a narrow band of high velocity hot or cold air, which is conveyed from the top of the bed to the bottom (or the bottom to the top) through the shapes placed in the soil bed; hot or cold air moves through the soil bed in open channels rather than pulled through the porous media itself. Vapor extraction lines situated below (or above) the soil bed extracts vapors from narrow sections in a sequential manner in concert with the narrow band of high velocity hot or cold air. In order to remove high concentration hydrocarbons, small sections of the bed are treated by passing an inert (less than 10% oxygen) narrow band of high velocity hot air (inert wave), followed by a period of no active treatment (soak zone), then followed by an ambient (21% oxygen) narrow band of high velocity hot air (ambient wave). The space between the inert wave and ambient wave takes advantage of the poor thermal conductivity of soils by allowing the soil to remain at temperature without the addition of additional energy (soak zone). ...

Oil and gas industry waste stream remediation system, method, and apparatus

A system comprising a plasma assisted vitrifier ( 8 ) configured to produce vitrified product. A feed pipe ( 4 ) can be fluidly connected to the plasma assisted vitrifier ( 8 ). The feed pipe ( 4 ) can be configured to deliver a feedstock into the plasma assisted vitrifier. A heated combustion air conduit ( 34 ) can be fluidly connected to the plasma assisted vitrifier ( 8 ). A spinning fiberizer can be disposed next to the plasma assisted vitrifier ( 8 ) and configured to receive the vitrified product ( 24 ). An emissions attenuation device can be fluidly connected to the plasma-assisted vitrifier ( 8 ) and configured to treat gaseous emissions generated by the plasma-assisted vitrifier ( 8 ).

SOIL REMEDIATION UNIT

A soil remediation unit that changes the use and purpose of certain commercially available aggregate mixing devices and or pug mills for removing unwanted contaminants from a quantity of contaminated soil aggregate or substrate which includes a canopy and a burner tube attached to the canopy. The burner tube includes an upper securing element and a lower adjustment element. The soil remediation unit also includes a burner supported in a desired position within the burner tube by the upper securing element and the lower adjustment element. 1. A soil remediation unit comprising:a portable canopy;a burner tube attached to the canopy including an upper securing element, a lower adjustment element and one or more intake openings; anda burner supported in a desired position by the upper securing element and the lower adjustment element to maintain a concentric air gap between the burner and the burner tube.2. The soil remediation unit of wherein the canopy includes at least one vapor exhaust mechanism comprising a hatch and a port claim 1 , the hatch movably connected to the canopy and configured to operate in an open position and a closed position such that when the hatch is in the open position claim 1 , the movement of vapor from one side of the canopy to the other side of the canopy is permitted through the port.3. The soil remediation unit of wherein the burner tube is a cylindrical tube inside of which the burner is positioned.4. The soil remediation unit of wherein the canopy comprises a first panel connected to a second panel claim 1 , the first panel and the second panel each including at least one opening configured to receive the burner tube.5. The soil remediation unit of wherein the canopy comprises a first panel connected to a second panel along a longitudinal edge claim 1 , the first panel comprising one or more reinforcement elements positioned on the first panel parallel to the longitudinal edge.6. The soil remediation unit of wherein the burner tube is ...

Hydrocarbon removal process

A remediation process wherein fresh water is pumped into a tank for heating by a heater and pumped to Filter and UV Light and reactor producing cavitation and then pumped to a chemical mixing tank wherein a promoter oxidizers is added before solution is pumped from mixing tank to spray injectors for treating contaminated soil. 1. A remediation process wherein 500 gallons of fresh water is pumped into a 525 gallon tank for heating;Heating is accomplished by a propane tankless hot water heaterThe heated water is pumped to a KDF Filter.The heated water is then pumped through a UV LightThe hot water is then pumped through a Reactor producing cavitationThe treated hot water solution is pumped to a chemical mixing tankA promoter of appropriate oxidizer is mixed with treated hot water.Mixed solution is pumped from mixing tank to spray injectors for treating contaminated soil with at least 2 gallons per cubic yardPumped down hole on pre-engineered spacing of 5 to 7 foot opening though out the plume area of contaminated area.Sprayed on a feeder system to a conveyor belt with contaminated soil whereinThe reaction process causes water to separate into hydrogen atoms and hydroxyl radicals forming hydrogen peroxide which along with the pressure and heat crack higher molecular weight species to small fragments and additionally form polymeric material acting as surfactant which separates hydrocarbons from liquids and slurry components.2. A remediation process wherein 500 gallons of fresh water is pumped into a 525 gallon tank for heating;Heating is accomplished by a propane tankless hot water heaterThe heated water is pumped to a KDF Filter.The heated water is then pumped through a UV LightThe hot water is then pumped through a Reactor producing cavitationThe treated hot water solution is pumped to a chemical mixing tankA promoter of appropriate oxidizer is mixed with treated hot water.Pumped down hole on pre-engineered spacing of 5 to 7 foot opening though out the plume area of ...

Indirect thermal desorption device with two-section screw conveyors

An indirect thermal desorption device with two-section screw conveyors, includes: an upper skid and a lower skid below the upper skid. An upper layer thermal desorption chamber, a feeding hopper, an feed airlock, an air pre-heater, a blower; a first quench spray tower, a second quench spray tower, a demister and an induced draft fan are provided in the upper skid. A lower layer thermal desorption chamber, an activated carbon filter tank, a combustion chamber, a discharge hopper and an discharge airlock are provided inside the lower skid. A first screw conveyor is provided in the upper layer thermal desorption chamber, and an upper layer fume jacket is covered on the upper layer thermal desorption chamber. A second screw conveyor is provided in the lower layer thermal desorption chamber, and a lower layer fume jacket is covered on the lower layer thermal desorption chamber.

Thermal desorption system for oil-contaminated soil and gravel, using microwave indirect irradiation method and including microwave leakage prevention device and preheating device using waste heat, and thermal desorption method for oil-contaminated soil and gravel, using same

Embodiments of the present invention relate to a thermal desorption system for oil-contaminated soil and gravel, using a microwave indirect irradiation method and including a microwave emission prevention device and a preheating device using waste heat, and a thermal desorption method for oil-contaminated soil and gravel, using the same and, more specifically to: a device capable of economically purifying, in an eco-friendly manner, contaminated soil and gravel by using a microwave indirect irradiation method on soil and gravel contaminated by pollutants such as various oils or organic waste; and a method therefor. When using the contaminated soil and gravel purification device and the method therefor of the present invention, purification work can be completed by processing contaminated soil and gravel only once, thereby enabling high productivity to be ensured, and waste materials discharged from an ironmaking process and the like are used as raw materials of heating element particles such that objectives are achieved even without using conventional, high-priced materials, thereby enabling high economic feasibility to be ensured, and thus applicability to an actual field can remarkably increase. In addition, an outer tube encompassing an inner tube extends to both sides and a plurality of ring-shaped microwave attenuation units are arranged on the inner circumferential surface of the outer tube, such that microwaves are prevented from leaking between the inner tube and the outer tube, thereby enabling eco-friendliness to be ensured, and even the waste heat generated during a pollutant desorption process is utilized in the system itself, thereby enabling economic feasibility to increase further.

Methods for Destroying Liquid Organic Contaminants in a Smoldering Combustion Reaction

A method destroys organic liquid contaminants contained in a plurality of below-ground volumes by smoldering combustion. The method applies heat to at least a portion of a first one of the volumes of organic liquid and forces oxidant into the first volume of organic liquid so as to initiate self-sustaining smoldering combustion of the first volume of organic liquid. The method may terminate the heat applied to the first volume of organic liquid. Next, the method modulates the flow of the oxidant into the first volume of organic liquid so as to cause at least a portion of the first volume of organic liquid to migrate and come into contact with another one of the volumes of organic liquid, so as to propagate the smoldering combustion. In an alternative embodiment, the flow of the oxidant may be modulated to establish a substantially stationary combustion front. 1. A method for destroying , by smoldering combustion , organic liquid contaminants contained in a plurality of below-ground volumes , the method comprising:applying heat to at least a portion of a first one of the volumes of organic liquid and forcing oxidant into the first volume of organic liquid so as to initiate self-sustaining smoldering combustion of the first volume of organic liquid;terminating the heat applied to the first volume of organic liquid; andmodulating flow of the oxidant into the first volume of organic liquid so as to cause at least a portion of the first volume of organic liquid to migrate and come into contact with another one of the volumes of organic liquid, so as to propagate the smoldering combustion.2. The method according to claim 1 , further comprising causing propagation of the combustion away from a point of ignition of the combustion.3. The method according to claim 1 , wherein the ground is natural or made ground.4. The method according to claim 1 , wherein forcing oxidant through the first volume of organic liquid includes injecting air into the first volume of organic liquid ...

SOIL REMEDIATION UNIT

A soil remediation unit that changes the use and purpose of certain commercially available aggregate mixing devices and or pug mills for removing unwanted contaminants from a quantity of contaminated soil aggregate or substrate which includes a canopy and a burner tube attached to the canopy. The burner tube includes an upper securing element and a lower adjustment element. The soil remediation unit also includes a burner supported in a desired position within the burner tube by the upper securing element and the lower adjustment element. 1. A soil remediation unit comprising:a canopy;a burner tube attached to the canopy including an upper securing element and a lower adjustment element; anda burner supported in a desired position by the upper securing element and the lower adjustment element.2. The soil remediation unit of wherein the canopy includes at least one vapor exhaust mechanism comprising a hatch and a port claim 1 , the hatch movably connected to the canopy and configured to operate in an open position and a closed position such that when the hatch is in the open position claim 1 , the movement of vapor from one side of the canopy to the other side of the canopy is permitted through the port.3. The soil remediation unit of wherein the canopy comprises a first panel claim 1 , a second panel and a bar claim 1 , the first panel and the second panel connected together with a hinge at one edge of the first panel and the second panel claim 1 , the first panel and the second panel fixed at a desired angle relative to each other with the bar.4. The soil remediation unit of wherein the burner tube is a cylindrical tube inside of which the burner is positioned.5. The soil remediation unit of further comprising one or more tethers claim 1 , the one or more tethers connected both to the burner tube and the burner to prevent the burner from falling through the burner tube.6. The soil remediation unit of wherein the canopy comprises a first panel connected to a second ...

REMEDIATION OF CONTAMINATED PARTICULATE MATERIALS

A process for the remediation of contaminated particulate materials by the addition of an environmentally benign, carbonaceous fuel source in low concentration to enable or enhance smoldering combustion. The process may be applied to both in situ and ex situ treatments. In an ex situ smoldering process for the remediation of contaminated particulate materials in a continuous manner, contaminated feed is introduced near the top of a treatment unit and treated product emerges near the bottom. A smoldering front is maintained in the unit, fed by the fuel in the contaminated particulate material and a supply of combustion-supporting gas, such as air. 1. A process for the application of smoldering combustion to remediate contaminated particulate materials , comprising:introducing into a contaminated particulate material, to enable or enhance smoldering combustion, an additive having a total organic carbon concentration of at least 25 weight percent in an average concentration in the contaminated particulate material following introduction of up to 10 weight percent; andinitiating smoldering combustion in the contaminated particulate material.2. A process according to claim 1 , wherein the additive enables a contaminated particulate material that is unable or only intermittently able to sustain smoldering combustion to consistently sustain smoldering combustion.3. A process according to claim 1 , wherein the additive comprises a fatty acid or a fatty-acid derivative.4. A process according to claim 3 , wherein the additive comprises fatty-acid methyl esters or biodiesel.5. A process according to claim 1 , wherein the additive comprises one or more solids rich in humic substances.6. A process according to claim 5 , wherein the additive comprises peat claim 5 , leonardite claim 5 , or humalite.7. A process according to claim 1 , wherein the additive comprises one or more manufactured carbonaceous solids.8. A process according to claim 1 , wherein the additive is introduced ...

APPARATUS AND METHODS FOR REMOVAL, MEASUREMENT, AND MAPPING OF PER- AND POLYFLUOROALKYL SUBSTANCES

Apparatus and methods for removing, measuring, and/or mapping per- and polyfluoroalkyl substances (PFAS) present in porous media such as soils, sludges, and colloids by employing both direct and indirect heating methods to transfer thermal energy to the media undergoing treatment. The contaminated media is placed within a media treatment enclosure that incorporates a thermal jacket, and radiatively heated by circulating a heated gas through the thermal jacket. The contaminated media is directly heated by injecting heated treatment gas into the media treatment enclosure. The heated treatment gas is drawn over and/or through the contaminated media to mobilize contaminants from the media and into the treatment gas, which is then collected and processed to recover the contaminant. 1. A radiative polarity conversion apparatus for treating porous and colloidal media to remove contaminants , comprising:a media treatment assembly, including a media treatment enclosure that is configured to rest upon and removably couple to a media treatment base; anda base assembly; including a base and a heater head assembly; wherein the media treatment assembly is configured to rest upon and removably couple to the base;and the heater head assembly is configured to rest upon and form a seal with the media treatment assembly; sidewalls that define a thermal jacket configured to be heated by circulation of a heated gas within the thermal jacket; and', 'a porous channel assembly including a plurality of porous structures each defining a channel for heated treatment gas, wherein adjacent pairs of porous structures define vertical spaces for receiving media to be treated;, 'wherein the media treatment enclosure includessuch that when the media treatment enclosure including the porous channel assembly rests upon and is coupled to the media treatment base, the vertical spaces defined by the porous channel assembly are substantially filled with media to be treated, the media treatment assembly ...

METHOD AND SYSTEM FOR TREATING MUNICIPAL SOLID WASTE

A method for treating process material using a plurality of autoclaves, wherein each of the plurality of autoclaves cycles through the following: introducing steam from one or more of the plurality of autoclaves into an interior of a vessel; increasing the temperature within the vessel by adding heat to the interior of the vessel using an indirect heat source; reducing the temperature and pressure within the vessel by flashing a portion of the steam within the interior of the vessel to another one of the plurality autoclaves; increasing the temperature within the vessel by continuing to add heat to the interior of the vessel using the indirect heat source; and reducing a moisture content of the process material in the interior of vessel to a predetermined value by venting a remaining portion of the steam to another one of the plurality of autoclaves. 1. A method for treating process material using a plurality of autoclaves , each of the plurality of autoclaves comprising a hollow vessel having a longitudinal axis and an interior for receiving process material to be treated , wherein each of the plurality of autoclaves cycles through the following:introducing steam from one or more of the plurality of autoclaves into an interior of a vessel;increasing the temperature within the vessel by adding heat to the interior of the vessel using an indirect heat source;reducing the temperature and pressure within the vessel by flashing a portion of the steam within the interior of the vessel to another one of the plurality autoclaves;increasing the temperature within the vessel by continuing to add heat to the interior of the vessel using the indirect heat source; andreducing a moisture content of the process material in the interior of vessel to a predetermined value by venting a remaining portion of the steam to another one of the plurality of autoclaves.2. The method of claim 1 , further comprising:introducing a process material into the interior of the vessel;increasing a ...

Method for Generating or Recovering Materials through Smoldering Combustion

Methods are provided for generating or recovering gaseous materials such as hydrogen and solids such as metals through the smoldering combustion of an organic material. The methods include admixing a porous matrix material with an organic material, and, in some embodiments a catalyst, to produce a porous mixture. The mixture is exposed to an oxidant, initiating a self-sustaining smoldering combustion of the mixture, and collecting the vapors and combustion products or processing the porous matrix following combustion to physically separate the porous matrix material from ash containing inorganic materials of value. Additional embodiments aggregate the organic material or catalyst or porous matrix material or mixture thereof in an impoundment such as a reaction vessel, lagoon or matrix pile. Further embodiments utilize at least one heater to initiate combustion and at least one air supply port to supply oxidant to initiate and maintain combustion. 1. A method for producing and collecting a byproduct through smoldering combustion of an organic material , the method comprising:forming a porous mixture comprising an organic material and an inorganic material;heating at least a portion of the mixture;forcing an oxidant through the mixture so as to initiate a self-sustaining smoldering combustion of the organic material and to cause the production of the solid byproduct; andcollecting the byproduct.2. The method of claim 1 , where the organic material is selected from the group consisting of a liquid claim 1 , a slurry claim 1 , a semi-solid claim 1 , a solid claim 1 , and mixtures thereof.3. The method of claim 1 , where the porous mixture further comprises a porous matrix and the organic material is a liquid.4. The method of claim 1 , further comprising causing propagation of the combustion away from a point of initiation of the smoldering combustion.5. The method of claim 1 , where the components of the porous mixture are aggregated in one of a reaction vessel claim 1 ...

SOIL AND WATER REMEDIATION METHOD AND APPARATUS FOR TREATMENT OF RECALCITRANT HALOGENATED SUBSTANCES

Disclosed are methods, apparatuses and systems for the remediation of contaminated soils, groundwater, water, and/or waste using a combination of reagents. The disclosed methods may be used to treat various recalcitrant halogenated substances, such as perfluoroalkyls and polyfluoroalkyls. Particular combinations of reagents that may be used in the disclosed methods include but are not limited to: (1) persulfate, oxygen and ozone; (2) persulfate, salt, oxygen and ozone; (3) persulfate, phosphate, and/or oxygen; (4) persulfate, phosphate, oxygen and ozone; (5) persulfate, phosphate, salt and oxygen (6) persulfate, phosphate, salt, oxygen and ozone; (7) oxygen and salt; and (8) air and salt. The disclosed methods may enhance destruction of organic contaminants in the liquid phase and may also control the rate of aerosol or foam formation relative to the rate of chemical oxidation and/or reduction/transfer. 1. A contaminant treatment system , comprising:at least one gas infusion reactor comprising at least one reaction compartment, the at least one reaction compartment comprising a headspace and configured to receive liquid comprising a contaminant;a gas supply line, the gas supply line configured to introduce one or more gases into a lower area of the at least one reaction compartment and to transfer at least some of the contaminant to a headspace above the liquid, the headspace comprising at least one of a foam and a gas; andwherein the at least one gas infusion reactor is configured to control contaminant destruction using ultraviolet light irradiation.2. The contaminant treatment system of claim 1 , wherein a first gas infusion reactor is configured to control at least one of a rate of foam formation and contaminant concentration and a second gas infusion reactor is configured to control contaminant destruction using ultraviolet light irradiation.3. The contaminant treatment system of claim 1 , where the at least one reaction compartment comprises one or more inlets ...

Sintered Wave Multi-Media Polarity Conversion Treatment Apparatus and Process for Nondestructive Removal and Condensation of Per- and Polyfluoroalkyl Substances (PFAS) and Other Dangerous Compounds

Sintered Wave Multi-Media Polarity Conversion Treatment Apparatus and Process is disclosed, which uses a non-destructive physiochemical PFAS vapor emissions treatment system to provide vacuum and vapor conveyance for 1) a Polarity Conversion Unit for non-destructive PFAS removal from soil, sludges, rechargeable galvanic filter media and objects, 2) a fluids treatment line for PFAS removal from water, brines, foams and colloids, and 3) an amphiphilic decontamination wand for PFAS removal from hard surfaces. The vapor emissions treatment system uses direct spray cooling to cool treatment gases where fluid chemistry causes pre-micellular aggregates/liquids crystals formation. Filtered aggregates are dried in a Brine Pot Evaporator for off-site disposal. Residual PFAS vapors are removed through a Vapor Phase Galvanic Separator where galvanic currents offer high energy interfaces of varying charges for monomeric PFAS self-assembly. The Polarity Conversion Unit assembly uses transportable “flow through” vessels, static geometry, high surface area, treatment gas temperature and velocity modulation to reduce thermal resistivity of the media. Treatment gas is sequentially routed around shaped vertical media beds where thermal energy disorganizes surface polarities (Gibbs free energy) disconnecting amphiphilic compounds/mixtures from the media. The fluids treatment line uses a Surface Excess Concentrator where a surface excess complex is created, removed and dried for off-site disposal. Treated bulk fluids exit from the bottom (below the surface) and are routed to the Aqueous Phase Galvanic Separator. Galvanic filter media is recharged in the Polarity Conversion Unit for reuse. Hard surfaces are decontaminated using the amphiphilic decontamination wand to disorganize surface polarity. Catalytic oxidation and granular activated carbon systems are also used to capture, destroy and measure classic contaminants and cleaved hydrocarbons from fluorinated precursors during treatment ...

Activated Carbon Supported Ni0Fe0 Nanoparticles for Reductive Transformation of Perfluoroalkyl-Containing Compounds

The present application relates to a novel method for reductive degradation of perfluoroalkyl-containing compounds, such as perfluoroalkyl sulfonates, by activated carbon (AC) supported zero valent iron-nickle nanoparticles (nNiFe). 1. A catalyst composition comprising zero valent iron (Fe) nanoparticles with surface coated by zero valent nickel (Ni) , and active carbon powders , wherein said zero valent iron (Fe) nanoparticles coated by zero valent nickel (Ni) are supported by said active carbon powders , wherein said active carbon powders comprise active carbon nanoparticles.2. The catalyst composition of claim 1 , wherein the weight percentage of the zero valent nickel (Ni) is 0.5% to 5.0% of the total weight of zero valent iron (Fe) and zero valent nickel (Ni).3. The catalyst composition of claim 1 , wherein the weight percentage of the zero valent nickel (Ni) is 1% to 3% of the total weight of zero valent iron (Fe) and zero valent nickel (Ni).4. The catalyst composition of claim 1 , wherein weight percentage of active carbon powders is 5% to 20% of total weight of zero valent iron (Fe) claim 1 , zero valent nickel (Ni) claim 1 , and active carbon powders.5. The catalyst composition of claim 1 , wherein zero valent nickel (Ni) is plated onto surface of zero valent iron (Fe) nanoparticles.6. The catalyst composition of claim 1 , wherein zero valent iron (Fe) nanoparticles comprise particles with size distribution from 20 nm to 70 nm. This application claims the benefits of U.S. Provisional Application Ser. No. 621550,265, filed Aug. 25, 2017. The contents of which are incorporated herein entirely.This invention was made with government support under W912HQ-14-C-0047 awarded by the United States Department of Defense. The government has certain rights in the invention.The present application relates to a novel method for reductive degradation of perfluoroalkyl-containing compounds, such as perfluoroalkyl sulfonates, by activated carbon (AC) supported zero valent ...

Soil box for evaporative desorption process

Simple flow path with minimum turns for the vapor extraction flow paths can provide maximum air flow with minimal head loss, leading to higher efficiency in a thermal desorption process. Hot air vapor extraction arrangement can include large diameter vertical or horizontal trunk line or curved plate with continuous wire wrap well screens. The vapor extraction trunk can draw all vapors to the center of the soil box, which can reduce the treatment time by substantially removing condensation zone. The interior of the vapor extraction well screen and trunk can include porous material, which can reduce dust within the vapor stream, eliminate potential short circuiting in the event of a screen rupture and reduce potential explosion hazards. 1. A soil box for a thermal desorption process , the soil box comprising wherein the container comprises one or more walls,', 'wherein the container comprises an inner volume for containing a material,', 'wherein the container comprises an opening inlet,', 'wherein the opening inlet is configured to accept a treatment gas to the container,', 'wherein the container comprises an opening outlet,', 'wherein the opening outlet is configured to exhaust the treatment gas from the container;, 'a container,'} 'wherein the screen element is configured so that the treatment gas forms a substantially uniform flow through the material on the path from the opening inlet to the opening outlet.', 'a screen element coupled to the opening outlet,'}2. A soil box as inwherein the substantially uniform flow comprises a parallel flow from a top side of the container to a bottom side of the container.3. A soil box as inwherein the substantially uniform flow comprises parallel flow from a top side of the container to a bottom side of the container together with a radial flow from the one or more walls.4. A soil box for a thermal desorption process claim 1 , the soil box comprising wherein the container comprises one or more walls,', 'wherein the container ...

Flow treatments in evaporative desorption processes

Treating an immediate exhaust of a thermal desorption chamber can improve the safety of the treatment process, such as reducing potential explosion or flammability when treating highly contaminated soil. Mean free paths of the exhaust gas exiting a thermal desorption chamber are restricted to limit the flame propagation and explosion fronts. For example, a section of the gas exhaust conduit can be filled with a porous media, which can assist in reducing or eliminating the potential explosion hazard in the conduit. Temperature and concentration of flammable elements can be monitored and controlled to prevent explosion hazards. An isolation valve and a pressure relief chimney can also be coupled to the exhaust of the thermal desorption chamber. 1. A method comprisingflowing a heated gas to a contaminated soil to generate an exhaust gas from the contaminated soil, wherein the contaminated soil comprises hydrocarbon contaminants;restricting mean free paths of the exhaust gas to reduce a propagation of an explosion caused by the exhaust gas.2. A method as inwherein the restricted mean free paths is less than 5 mm.3. A method as in further comprisingregulating a temperature of the exhaust gas to be below an auto-ignition temperature of the hydrocarbon contaminants.4. A method as in further comprisingregulating the flow of the heated gas so that a concentration of the hydrocarbon contaminants is outside a range of flammability of the hydrocarbon contaminants.5. A method as in further comprisingisolating downstream equipment and directing the exhaust gas to a relief chimney during the explosion.6. A method as in further comprisingcooling the exhaust gas to be below an auto-ignition temperature of the hydrocarbon contaminants.7. A method as in further comprisingspraying water onto the exhaust gas to reduce a temperature of the exhaust gas.8. A method comprisingforming a treatment chamber, wherein the treatment chamber is configured to contain a contaminated soil, wherein the ...

TREATMENT OF CLAY OR DREDGED SEDIMENT WITH POLYMER INCREASES ADSORPTION CHARACTERISTICS

The disclosure relates to the field of lining materials which are used to isolate landfill sites in order to avoid pollution of surrounding soil by ions such as heavy metals. Further disclosed is a process to increase the ion adsorption capacity of clay or dredged sediment. More specifically, the disclosed is a process comprising: a) mixing the clay or dredged sediment with an anionic polymer, and b) subsequently drying the mixture, results in a lining material having superior ion adsorption characteristics. 1. Process for adsorbing heavy metals leaching from the environment onto clay or dredged sediments , or for adsorbing and retaining heavy metals present in dredged sediment , the method comprising:a) mixing the clay or the dredged sediment with a solution comprising an anionic polymer in order to obtain a mixture, and thenb) drying the mixture at a temperature greater than 45° C. in order to irreversibly adsorb the anionic polymer onto the clay or dredged sediment.2. A process according to claim 1 , wherein the heavy metals are cations exhibiting metallic properties.3. A process according to claim 1 , wherein the heavy metals are selected from the group consisting of arsenic claim 1 , cadmium claim 1 , cobalt claim 1 , chromium claim 1 , copper claim 1 , magnesium claim 1 , manganese claim 1 , mercury claim 1 , nickel claim 1 , lead claim 1 , tin claim 1 , thallium claim 1 , or a mixture of any thereof.4. A process according to claim 1 , wherein the clay is kaolin clay.5. A process according to claim 1 , wherein the clay or dredged sediment is mixed with 2 up to 16% by dry weight of the anionic polymer.6. A process according to claim 1 , wherein the anionic polymer is sodium carboxymethyl cellulose.7. A process according to claim 1 , wherein the drying occurs at a temperature greater than 65° C.8. A process according to claim 1 , wherein the drying occurs at air or under vacuum.9. A process according to claim 1 , wherein the drying is dehydration resulting in a ...

HYDROCARBON SORBENT MATERIALS

Sorbent polymers which are selective to taking up hydrocarbons are provided for separating hydrocarbons from fluids and taking up hydrocarbons from off of and intermixed with solid materials. The hydrocarbons may at least partially be expressed out of and recovered from the polymer by squeezing. The polymers may be re-used for picking up additional hydrocarbons. Methods for producing and using the polymers are also provided. 146-. (canceled)47. A method for extracting hydrophobic material , the method comprising:{'sub': n', 'm, 'contacting a composition with a sorbent having a structure of formula —[XY]— wherein,'}{'sub': 5', '50', '5', '50', '5', '50', '5', '50, 'X comprises a multivalent component comprising a Cto Ccycloalkyl, Cto Cheterocycloalkyl, Cto Caryl, Cto Cheteroaryl, or combinations thereof;'}{'sub': 5', '30', '5', '30', '5', '30', '5', '30, 'Y comprises a divalent component comprising a Cto Ccycloalkyl, Cto Cheterocycloalkyl, Cto Caryl, Cto Cheteroaryl, or combinations thereof;'}n is an integer of 2 to 10; andm is an integer greater than or equal to 2,wherein the composition comprises at least one hydrophobic material, and wherein the hydrophobic material is adsorbed or absorbed by the sorbent.48. The method of claim 47 , further comprising separating the sorbent from the composition.49. The method of claim 48 , further comprising removing at least a portion of the at least one hydrophobic material from the sorbent.50. The method of claim 49 , wherein the removing comprises applying pressure to force hydrophobic material from the sorbent claim 49 , wherein applying pressure removes at least about 60% of the hydrophobic material.51. The method of claim 49 , wherein the removing comprises heating the sorbent and applying pressure to force hydrophobic material from the sorbent claim 49 , wherein applying heat and pressure removes at least about 90% of the hydrophobic material.52. The method of claim 49 , wherein the removing comprises heating the sorbent ...

SOIL AND WATER REMEDIATION METHOD AND APPARATUS FOR TREATMENT OF RECALCITRANT HALOGENATED SUBSTANCES

Disclosed are methods, apparatuses and systems for the remediation of contaminated soils, groundwater, water, and/or waste using a combination of reagents. The disclosed methods may be used to treat various recalcitrant halogenated substances, such as perfluoroalkyls and polyfluoroalkyls. Particular combinations of reagents that may be used in the disclosed methods include but are not limited to: (1) persulfate, oxygen and ozone; (2) persulfate, salt, oxygen and ozone; (3) persulfate, phosphate, and/or oxygen; (4) persulfate, phosphate, oxygen and ozone; (5) persulfate, phosphate, salt and oxygen (6) persulfate, phosphate, salt, oxygen and ozone; (7) oxygen and salt; and (8) air and salt. The disclosed methods may enhance destruction of organic contaminants in the liquid phase and may also control the rate of aerosol or foam formation relative to the rate of chemical oxidation and/or reduction/transfer. 1. A method of reducing the concentration of an organic contaminant in soil , the method comprising introducing persulfate and oxygen into a saturated zone to oxidize at least a portion of the organic contaminant.2. The method of claim 1 , wherein the persulfate and oxygen are introduced simultaneously.3. The method of claim 1 , wherein the persulfate and oxygen are introduced sequentially such that residuals of each are present.4. The method of claim 1 , further comprising introducing phosphate into the saturated zone.5. The method of claim 4 , wherein the persulfate claim 4 , oxygen and phosphate are introduced simultaneously.6. The method of claim 4 , wherein the persulfate claim 4 , oxygen and phosphate are introduced sequentially such that residuals of all three are present.7. The method of claim 1 , further comprising introducing hydrogen peroxide into the saturated zone.8. The method of claim 1 , further comprising introducing ozone into the saturated zone.9. The method of claim 1 , further comprising introducing a hydrogen source into the saturated zone.10. ...

Process For Soil Remediation

A method of remediating a contaminant from soil is provided. According to the present method, clean (uncontaminated) soil is mixed with contaminated soil in a ratio that provides for remediation of the contaminant. The soil mixing method utilizes soil vibration and water as a hydraulic medium to achieve mixing of the clean and contaminated soil such that the contaminated soil is distributed homogeneously throughout the mixed soil to bring the level of contamination of the soil contaminant to within an acceptable level. 1. A method of remediating a contaminant from soil comprising:a) identifying a land parcel having at least one soil contaminant that exceeds a desired level of contaminant;b) identifying within the land parcel, a portion of soil having a concentration of the at least one soil contaminant that exceeds the desired level of contaminant;c) identifying the concentration of the soil contaminant in the portion of soil;d) excavating the identified portion of soil with the at least one soil contaminant;d) calculating an amount of uncontaminated soil to be mixed with the portion of soil with at least one soil contaminant to achieve a desired level of contaminant;e) mixing the excavated portion of soil with the at least one soil contaminant with uncontaminated soil to form a mixed soil, the mixed soil conforming to the desired level of contaminant within the soil; andf) blending the mixed soil with soil vibration and water as a hydraulic medium, such that the contaminant is distributed substantially consistently throughout the mixed soil.2. The method according to wherein the method further comprisesi) identifying within the land parcel, a portion of soil which is uncontaminated with the soil contaminant, or has a lower concentration of the soil contaminant than the portion of soil having a concentration of the soil contaminant that exceeds the desired level of contaminant; andii) using the portion of soil which is uncontaminated with the soil contaminant, or ...

APPARATUS AND METHOD FOR SOIL REMEDIATION

A remediation processor for extracting volatiles from contaminated material includes at least a first set of augers stacked above a second set of augers wherein each set of augers can include at least two counter-rotating side-by-side augers to upwardly churn contaminated material. A burner provides heated air that is forced along an airflow path over the sets of augers. The contaminated material is conveyed along the sets of augers flows in a direction counted to the airflow path of the heated air. 1. A soil remediation processor for extracting volatiles from contaminated soil , comprising:a sealable housing containing a volume of air at a first air pressure and containing at least a first set of augers stacked above a second set of augers within said housing, wherein each set of augers of said first and second sets of augers includes at least two augers which are side-by-side and parallel and adapted to be driven in counter-rotation to one another to upwardly churn the contaminated soil when the contaminated soil is in contact with said at least two augers,wherein said housing has at least first and second air passageways in which are mounted corresponding at least first and second soil-transfer channels, and wherein said at least first and second sets of augers are mounted in so as to extend along said at least first and second soil-transfer channels respectively,and wherein said at least first and second air passageways define an airflow path between an air intake of said housing and air out-flow of said housing at respectively upstream and downstream ends of said airflow path,and wherein a burner is mounted so as to cooperate with said air intake to provide heated air at said upstream end of said airflow path,and wherein said counter-rotation of said augers within each said set of augers conveys the soil in a soil flow direction, wherein, collectively, the soil conveyed along all of said sets of augers flows along a soil flow path which is counter to said ...

METHOD AND MEANS FOR TREATMENT OF SOIL

Disclosed is a method for introducing a liquid, preferably aqueous, into a volume of a porous medium (typically clay or clay-rich soil), which has a matrix hydraulic conductivity below 10m/s, comprising establishing at least one frozen section and at least one non-frozen section of said volume and introducing said liquid into said non-frozen section. Also disclosed is a method for remediation of a volume of such a porous medium as well as a system/assembly suitable for carrying out said method. 1. A method for distributing a liquid medium into a volume of a porous medium , which has a matrix hydraulic conductivity below 10m/s , comprising establishing at least one frozen section and at least one non-frozen section of said volume and introducing said liquid into said non-frozen section.2. The method according to claim 1 , wherein said volume comprises or consists of clay or clay-rich material.3. The method according to claim 1 , wherein said frozen section is established by means of at least one freezing unit introduced directly into said volume.4. The method according to claim 1 , wherein said liquid medium is introduced while the at least one frozen section is being established.5. The method according to claim 1 , wherein said liquid medium is introduced after the at least one frozen section has been at least partially established.6. The method according to claim 1 , wherein the volume of said frozen section expands as a consequence of being frozen.7. The method according to claim 6 , wherein volume expansion is at least 3%8. The method according to claim 6 , wherein the capacity for the liquid medium in the frozen section increases as a consequence of volume expansion of said frozen section.9. The method according to claim 1 , wherein the frozen section claim 1 , which is established claim 1 , comprises freeze-thaw fractures that are spaced with an average distance of at most 10 cm.10. The method according to claim 1 , wherein said liquid medium is introduced into ...

Controlling processes for evaporative desorption processes

Active or closed loop controls can be used to improve the operation of a thermal desorption process. Characteristics of the thermal desorption process can be monitored, and then can be used to predict the end point of the thermal desorption process. Inputs and effluent treatment elements can also be modulated to further optimize the treatment time and quality (completeness) and to avoid any unwanted effects associated with excess processing. 1. A method comprisingproviding a thermal desorption chamber, wherein the thermal desorption chamber is configured to accept an input gas;monitoring a change of temperature of an exhaust of the thermal desorption chamber;predicting an end point of the thermal desorption process based on the change of temperature;adjusting a flow rate or a temperature of the input gas.2. A method as inwherein the flow rate or the temperature of the input gas is adjusted to minimize a power consumption based on the predicted end point.3. A method as inwherein the flow rate of the input gas is reduced before the predicted end point to minimize a power consumption.4. A method as inwherein the flow rate is reduced by between 20% and 80%.5. A method as inwherein the flow rate of the input gas is turned off before the predicted end point to minimize a power consumption.6. A method as inwherein a heating the input gas is reduced before the predicted end point to minimize a power consumption.7. A method as inwherein the temperature of the input gas is reduced by between 20% and 80%.8. A method as inwherein a heating the input gas is turned off before the predicted end point to minimize a power consumption.9. A method as inwherein the flow rate or the temperature of the input gas is adjusted to minimize a process time of the thermal desorption process.10. A method as inwherein the flow rate or the temperature of the input gas is increased to reduce a process time of the thermal desorption process.11. A method comprisingproviding a thermal desorption ...

METHOD USING ARTIFICIAL FREEZING TECHNIQUE FOR SEALING AND DISPLACEMENT OF SOIL POLLUTANT

Disclosed is a method using an environmental-friendly and artificial freezing technique for sealing and displacement of a soil pollutant. The method for displacement of the soil pollutant comprises: performing an artificial freezing technique on an area and depth of a surveyed contaminated site to form a sealed frozen wall along the perimeter of the contaminated site, by using the excellent permeation resistance function of the frozen wall to seal the contaminated site and to prevent the pollutant from spreading further; selecting a freezing temperature of −10° C. to −30° C. according to characteristics of the freezing temperature and precipitation rate of the pollutant, by controlling the freezing rate to 1 cm/day to 10 cm/day, and performing freezing displacement of the soil pollutant from outside to inside using a principle of freezing purification, to concentrate the pollutant; and subjecting the remaining high concentration of contaminated soil to chemical treatment. 1. A method of using an artificial freezing technique for sealing and displacement of soil pollutant , comprising:performing an artificial freezing technique on an area and depth of a surveyed contaminated site to form a sealed frozen wall along a perimeter of the contaminated site, by using a permeation resistance function of the frozen wall to seal the contaminated site to prevent the soil pollutant from spreading further;selecting a freezing temperature of −10° C. to −30° C. according to characteristics of a freezing temperature and a precipitation rate of the soil pollutant, by controlling a freezing rate to 1 cm/day to 10 cm/day, performing freezing displacement of the soil pollutant from the perimeter of the contaminated site to a center of the contaminated site using a principle of freezing purification, to concentrate the soil pollutant; andsubjecting a remaining contaminated soil to a chemical treatment.2. The method of using the artificial freezing technique for sealing and displacement ...

REMEDIATION OF CONTAMINATED PARTICULATE MATERIALS

A process for the remediation of contaminated particulate materials by the addition of an environmentally benign, carbonaceous fuel source in low concentration to enable or enhance smoldering combustion. The process may be applied to both in situ and ex situ treatments. In an ex situ smoldering process for the remediation of contaminated particulate materials in a continuous manner, contaminated feed is introduced near the top of a treatment unit and treated product emerges near the bottom. A smoldering front is maintained in the unit, fed by the fuel in the contaminated particulate material and a supply of combustion-supporting gas, such as air. 114-. (canceled)15. A process for the remediation of contaminated particulate materials comprising:(i) removing the contaminated particulate material from its location in the ground,(ii) transferring the contaminated particulate material removed from the ground and admitting it into a remediation unit comprising a vertically extensive smoldering combustion vessel having an inlet at the top for contaminated feed and an outlet at the bottom for remediated product to be withdrawn from the vessel,(iii) heating a region of loaded feed in the vessel,(iv) admitting combustion-supporting gas into the loaded feed to ignite a smoldering combustion front and enable the front to progress through the loaded feed in the vessel,(v) withdrawing smoldered product from the bottom of the vessel and admitting additional contaminated feed at the top of the vessel to maintain the smoldering combustion front at a vertical location in the vessel between the top and the bottom of the vessel.16. A process according to claim 15 , wherein the contaminated feed is continuously admitted at the top of the vessel and smoldered product is continuously withdrawn through the outlet at the bottom of the vessel.17. A process according to claim 16 , wherein the smoldering combustion front in the vessel is maintained at a substantially fixed vertical location in ...

HEAT TRAVEL DISTANCE

This described invention related generally to thermal desorption systems. In one example embodiment, to methods, apparatus, and systems to a soil box design of thermal desorption system, wherein the soil box realizes a design for efficient heating and removing of containments such as hydrocarbons from contaminated soil by minimizing a distance between a point of treatment gas insertion and another point of treatment gas exit. 1. A soil treatment system , comprising: the soil box is able to be filled with a contaminated soil;', 'the insertion point accepts a heated treatment gas;', 'the soil box has at least one gas insertion point on at least one side, wherein, 'the exit point exits a treatment gas;', 'the soil box has at least one gas exit point on at least one side, wherein'}, 'the soil box has at least one pipe connecting points on one side and a corresponding point on an opposite side, and', 'the heat decontaminates the soil;, 'a soil box, wherein2. A system as in claim 1 , wherein:the heat desorbs or evaporates the containments in the soil.3. A system as in claim 1 , wherein:the heat catalyzes reactions in the soil causing decontamination of the soil and desorption/evaporation of the contaminants.4. A system as in claim 1 , wherein:at least one side of the soil box has a collection point for evaporated/desorbed contaminants to be removed from the soil box.5. A system as in claim 1 , wherein:the insertion points, exit points, and pipes are arranged in a grid.6. A system as in claim 1 , wherein:the treatment gas heats the soil indirectly, wherein as the treatment gas flows from the insertion point, through the pipe, and to the exit point, the treatment gas transfers heat to the pipe, wherein the pipe transfers heat to the contaminated soil.7. A system as in claim 6 , wherein:the insertion points, exit points, and pipes are arranged such that the proximate insertion point, exit point, and pipe flow the treatment gas in opposite directions.8. A system as in claim 1 ...

DEVICE, SYSTEM AND PROCESS FOR TREATING POROUS MATERIALS

The invention provides a method and a system for treating and/or decontaminating porous materials and/or aquifer layers, including at least one housing, at least one heating module, one module for injecting pressurized liquid and one recovery module. The heating means is capable of being introduced in the porous material, and includes at least one heating tube having a heat-conducting outer wall. The heating tube can be connected to the heating module. At least one pressurized-liquid injection tube is included which can be connected to the pressurized-liquid injection module. The system includes at least one vapor-extraction means for extracting the contaminant vapor. The extraction means is capable of creating the vacuum in the porous material and can be connected to the recovery module, and at least one layer of sealing material that can be applied to the surface of the porous material to be treated. 1. A method for treating and/or decontaminating porous materials in aquifers comprising the following steps:creating in the porous material at least one heater well to heat the porous material, said heater well comprising at least a heating tube and at least a pressurized liquid injection tube,creating in said porous material at least one extraction well to extract contaminant vapor,applying to the surface of the porous material a layer of watertight material,connecting the heater well and the extraction well to at least one housing comprising at least one heater module, one pressurized liquid injection module and one recovery module, said housing can be placed outside of the porous material,supplying heat, via the heater module, in the heater tube thereby heating the heater well,injecting, via the injection module, at least one liquid in the injection tube to vaporize and/or evaporate the injected liquid and the contaminants present in the porous material, thus transforming the contaminants into contaminant vapor, andextracting, via the extraction module, the ...

Apparatus and method for removing and recovering oil from solids

A method and apparatus for removing and recovering oil from wellbore cuttings is provided. Oil-contaminated solids are transported through two or more solvent baths on vibrating conveyors and contacted with solvent flowing countercurrent to the direction of transport of the oil-contaminated solids through the baths such that oil contaminant is separated from the solids.

SOIL-GROUNDWATER JOINT REMEDIATION DEVICE AND METHOD

The disclosure provides a soil-groundwater joint remediation device and a method. The soil-groundwater joint remediation device is disposed in an area to be remediated and includes an injection structure, an extraction structure, and a control structure. The injection structure is disposed in an injection well defined in the area to be remediated. The injection structure includes a hot air injection member, an oxidant injection member, and a micro-bubble injection member. The extraction structure is disposed in an injection well defined in the area to be remediated and spaced from the injection structure. The extraction structure includes a liquid phase extraction member and a gas phase extraction member. The control structure controls the liquid phase extraction member and the gas phase extraction member to perform an extraction operation. 1. A soil-groundwater joint remediation device , disposed in an area to be remediated , comprising: a hot air injection member configured for injecting hot air into the injection well;', 'an oxidant injection member configured for injecting an oxidant into the injection well; and', 'a micro-bubble injection member configured for injecting micro-bubbles into the injection well;, 'an injection structure disposed in an injection well defined in the area to be remediated, the injection structure comprising a liquid phase extraction member configured for extracting liquid from the extraction well; and', 'a gas phase extraction member configured for extracting gas from the extraction well; and, 'an extraction structure disposed in an injection well defined in the area to be remediated and spaced from the injection structure, the extraction structure comprisinga control structure respectively connected to the hot air injection member, the oxidant injection member, the micro-bubble injection member, the liquid phase extraction member, and the gas phase extraction member, controlling the liquid phase extraction member and the gas phase ...

THERMAL IN-SITU SUSTAINABLE REMEDIATION SYSTEM AND METHOD

A closed-loop system and method for heating of target contaminant treatment zones () having environmental contaminants of concern present in the groundwater and the soil by thermal conduction, and subsequent enhancement of physical, biological and chemical processes to attenuate, remove and degrade contaminants in the target contaminant treatment zones, is disclosed. The system and method collects solar or other heat and transfers that heat via a closed-loop and a set of borehole exchangers () to subsurface soil in the proximity of and/or directly to the target contaminant treatment zones. The target contaminant treatment zone may comprise contaminated soil, contaminated groundwater in an aquifer, or industrial waste comprising water and/or solids. Solar collectors or heat exchangers capturing waste heat from industrial processes may be used as the heat source (). 1. A system for heating a contaminated zone by thermal conduction comprising:a target zone in the subsurface of the ground containing contaminants to be treated by thermal heating;at least one heat source disposed on the surface of the ground in the proximity of the target zone;a plurality of borehole heat exchangers installed in the subsurface in proximity of the target zone;piping that connects the heat sources to the borehole heat exchangers;heat transfer fluid contained within the piping; andat least one pump for circulating the heat transfer fluid within the piping,wherein heat from the heat sources is transferred to the heat transfer fluid, wherein thereafter heat is transferred from the heat transfer fluid to the borehole heat exchangers, wherein thereafter heat is transferred from the borehole heat exchangers to the target zone, thereby increasing the temperature of the target zone and enhancing remediation of contaminants within the target zone.2. The system of claim 1 , wherein at least one heat source comprises solar collectors.3. The system of claim 2 , wherein the target zone further comprises ...

DEVICE AND METHOD FOR DECONTAMINATING SOIL

A thermal desorption system for remediating contaminated material in a zero oxygen environment by heating a gas and flowing the heated gas through a core heating conduit traversing the interior of a material compartment of a bin filled with contaminated material, redirecting the flow of heated gas from the core heating conduit to a space between the exterior of the bin and the interior of a bin housing insulator encapsulating the bin to provide dual indirect heating to the contaminated material within the bin, directing off gases of contaminated vapors released by desorption from the material to an exhaust header through a plurality of vapor outlets, and condensing the offgas in the exhaust header. 1. A thermal desorption device , the device comprising:a bin housing insulator having an interior surface and comprising a gas delivery port; an exterior surface;', 'a material compartment having a first side and a second side; and', 'a core heating conduit coupled to the gas delivery port, the core heating conduit positioned within the material compartment and having an intake port on the first side and an outlet port on the second side;, 'a bin positioned within the bin housing insulator, the bin comprisingone or more vapor outlets, each vapor outlet coupled to the bin for receiving offgas discharged from within the material compartment;an extension coupled to the material compartment and configured transport offgas away from the interior of the bin; andan exhaust header coupled to the extension, the exhaust header configured to receive the offgas from the material compartment through the extension.2. The device of claim 1 , wherein the bin housing insulator further comprises a redirection port directing the heated gas from the outlet port to a space between the interior surface of the bin housing insulator and the exterior surface of the bin.3. The device of claim 1 , wherein the device further comprises a first heating source configured to deliver a heated gas to the ...

Methods and systems for processing a vapor stream from a thermal desorption process

Methods and systems for treating an oil/water vapor stream containing solids fines. Routing a feed composition of oil/water vapors containing fine solids to a condensing unit, combining the feed composition with a cooled OWS emulsion, forming a warmed OWS emulsion. The warmed OWS emulsion is routed to a surge vessel containing a volume of surge OWS emulsion, where after a first portion of the surge OWS emulsion is routed to a heat exchanger, forming the cooled OWS emulsion, and a second portion of the surge OWS emulsion is routed to an OWS separation unit. The OWS separation unit may be one or more disc stack centrifuges, in some cases preceded by one or more decanting centrifuges. In certain embodiments the oil/water vapor stream containing solids fines is generated from a thermal desorption unit, such as a turbulent vacuum thermal desorption unit. Systems may be integrated with thermal desorption units and drilling rigs.

Method for Mitigating Acid Rock Drainage Potential through the Smoldering Combustion of Organic Materials

Methods are provided for the removal of sulfur and other ARD/AMD-generating materials through the smoldering combustion of an organic material. The methods comprise admixing an ARD/AMD-generating porous matrix material with an organic material to produce a mixture, exposing the mixture to an oxidant, and initiating a self-sustaining smoldering combustion of the mixture. Additional embodiments aggregate the organic material or ARD/AMD-generating porous matrix material or mixture thereof in an impoundment such as a reaction vessel, depression or matrix pile. Further embodiments utilize at least one heater to initiate combustion and at least one air supply port to supply oxidant to initiate and maintain combustion.

SYSTEMS AND METHODS FOR THERMAL DESTRUCTION OF UNDESIRED SUBSTANCES BY SMOLDERING COMBUSTION

Porous media containing undesired substances, e.g., perfluoroalkylated substances, are treated by mixing the porous media with a solid fuel comprising organic material. The mixture is heated to 200° C. to 400° C. to initiate smoldering combustion and an oxidizer gas is forced through the heated mixture such that the smoldering combustion is self-sustaining until the mixture reaches a PFAS destructive temperature and the perfluoroalkylated substances are thermally destroyed. A system is provided for conducting the treatment. The system includes a source of wax, wood chips, sawdust, tire scraps, waste rubber compounds, coal, granular activated carbon, solid fat, and combinations thereof as solid fuel. A mixer is provided for mixing the porous media with the solid fuel. An ignition system including static heating elements and a gas blower are provided for forcing heated oxidizer gas through the mixture such that self-sustaining smoldering combustion of the mixture is initiated and sustained. 1. A method for treating porous media containing an undesired substance , comprising:a. adding a solid fuel comprising organic material to the porous media containing the undesired substance to form a mixture that is capable of reaching an undesired substance destructive temperature of at least 800° C.;b. heating a portion of the mixture to 200° C. to 400° C. to form a heated mixture and to initiate smoldering combustion of the heated mixture;c. initiating a flow of an oxidizer gas through a portion of the heated mixture and controlling the flow at a rate such that the smoldering combustion of the heated mixture is self-sustaining; andd. continuing the self-sustaining smoldering combustion of the mixture until the mixture reaches the undesired substance destructive temperature of at least 800° C.2. The method of wherein the undesired substance comprises a perfluoroalkylated substance.3. (canceled)4. The method of wherein the solid fuel is selected from the group consisting of wax ...

SALT CAVERN WASHING WITH DESALINATION AND RECYCLING OF WATER

A method for desalinating and recycling the brine exiting a salt cavern. This method reduces the overall make-up water demand to wash a salt cavern, eliminates the brine disposal well and controls the cavern growth rate during disposal operations. The method includes the steps of: a) desalinating brine emerging from the salt cavern, and creating a stream of saline water, a stream of non-saline water and a stream of salt; b) recycling the stream volumes and combining the stream of non-saline and saline water with make-up water, thereby reducing demand for make-up water, c) pumping the salinated water into the salt cavern, and controlling the rate of growth of the salt cavern while disposing of wastes in the cavern, and repeating steps a) and b) substituting the make-up water with a waste mixture. 1. A method for controlling the rate of growth of a salt cavern in a salt formation , the method comprising:a) pumping wash water into the salt formation to dissolve salt and grow the salt cavern;b) desalinating brine emerging from the salt formation, thereby providing a stream of saline water, a stream of non-saline water and a stream of salt;c) recycling and combining the stream of saline water with make up water, thereby providing salinated wash water and reducing demand for make up water;d) pumping the salinated wash water into the salt formation, wherein the salinated wash water provides a slower rate of growth of the salt cavern than the rate of growth provided by step a) and reduces demand for make up water; ande) repeating steps b) to d).2. The method of claim 1 , further comprising mixing the stream of non-saline water with the stream of saline water before performing step c).3. The method of claim 1 , further comprising claim 1 , after step d) claim 1 , determining that the salt cavern is of sufficient size for waste storage claim 1 , diverting at least a portion of the stream of non-saline water to an external process requiring non-saline water claim 1 , mixing ...

THERMAL IN SITU SUSTAINABLE REMEDIATION SYSTEM AND METHOD FOR GROUNDWATER AND SOIL RESTORATION

A closed-loop system and method for heating of target contaminant zones having environmental contaminants of concern present in the groundwater and the soil by thermal conduction, and subsequent enhancements of physical, biological and chemical processes to attenuate, remove and degrade contaminants in the target contaminant treatment zones, is disclosed. The system and method collects solar or other heat and transfers the heat via a closed-loop and a set of borehole exchangers to subsurface soil in the proximity of and/or directly to the target contaminant treatment zones. The target contaminant treatment zone may comprise contaminated soil, contaminated groundwater in an aquifer, or industrial waste comprising water and/or solids. Solar collectors or heat exchangers capturing waste heat from industrial processes may be used as the heat source. 1. A system for remediating contaminants in a contaminated zone comprising:a target zone in the subsurface of the ground containing contaminants;at least one heat source disposed on the surface of the ground in the proximity of the target zone;a plurality of borehole heat exchangers installed in the subsurface in proximity of the target zone;piping that connects the at least one heat source to the borehole heat exchangers;heat transfer fluid contained within the piping; andat least one pump for circulating the heat transfer fluid within the piping,wherein heat from the at least one heat source is transferred to the heat transfer fluid, wherein thereafter heat is transferred from the heat transfer fluid to the borehole heat exchangers, wherein thereafter heat is transferred from the borehole heat exchangers to the target zone directly through the borehole heat exchangers to the target zone, thereby increasing the temperature of the target zone and enhancing remediation of contaminants within the target zone,wherein remediation is achieved without extraction or removal of the contaminants,and wherein the plurality of borehole ...

Construction Aggregate from Verified Remediated Spoil

Reliably safe remediated construction aggregate derived from excavated contaminated spoil remediated with a system and method using a sorbent in a verified process of testing and analysis of spoil before and after remediation and of adjusting amounts of sorbent and supplemental water mixed with contaminated spoil. 2. The remediated construction aggregate produced by a system for controlled verified remediation of contaminated spoil of claim 1 , said system further comprising a heat adder in said remediation pathway after said sorbent adder claim 1 , adapted to apply heat to said supply of sorbent mixed with contaminated spoil.3. The remediated construction aggregate produced by a system for controlled verified remediation of contaminated spoil of claim 1 , said system further comprising a remote controller in data communication with said controller claim 1 , adapted to give personnel additional control and monitoring of said system.4. The remediated construction aggregate produced by a system for controlled verified remediation of contaminated spoil of claim 1 , where said supply of sorbent is an adsorbent.5. The remediated construction aggregate produced by a system for controlled verified remediation of contaminated spoil of claim 1 , where said supply of sorbent is a sorbent which combines with contaminants in a heat-producing reaction.6. The remediated construction aggregate produced by a system for controlled verified remediation of contaminated spoil of claim 1 , where said supply of sorbent is a sorbent which reacts with contaminants in the presence of water.7. The remediated construction aggregate produced by a system for controlled verified remediation of contaminated spoil of claim 1 , where said supply of sorbent is zeolite.8. The remediated construction aggregate produced by a system for controlled verified remediation of contaminated spoil of claim 1 , where said supply of sorbent is silica gel.10. The method for production of remediated construction ...

METHOD AND SYSTEM FOR THERMAL DESORPTION TREATMENT OF ORGANIC-CONTAMINATED SOIL AND TREATMENT OF DESORBED WASTE GAS

The present invention discloses a method and system for thermal desorption treatment of organic-contaminated soil and treatment of desorbed waste gas. The system includes a thermal incinerator, a desorption flue gas temperature regulating device, a thermal desorption reactor, a dust collector, a heat exchange/steam separator, an absorption reactor, a star-shaped unloader, and a soil cooler. An absorbent containing organic pollutants is used as a fuel, and subjected to thermal incineration to achieve the decomposition and harmless treatment of the organic pollutants; and high temperature flue gas generated by the incineration is used as a heat carrier for thermal desorption remediation of the organic-contaminated soil; and by means of the high solubility capability of fuel oil to organic matter, the fuel oil is used as an absorbent to absorb and purify the organic pollutants in desorbed waste gas, so that the gas is purified gas and up-to-standard discharge is achieved. The present invention achieves the thermal desorption of the organic pollutants, the absorption and purification of the pollutants in the desorbed waste gas, and the thorough decomposition of the organic pollutants; the fuel oil has both functions of the absorbent and the fuel, and the present invention has the advantages of short process, low energy consumption, simple equipment and low cost. 1. A method for thermal desorption treatment of organic-contaminated soil and treatment of desorbed waste gas , comprising the following specific steps:step 1 of thermal incineration: mixing fuel oil and combustion-supporting gas and performing thermal incineration to generate high temperature flue gas of 800-1500° C.;step 2 of flue gas temperature regulation: mixing the high temperature flue gas generated in step 1 with normal temperature gas to obtain thermally-desorbed flue gas, and adjusting the temperature of the thermally-desorbed flue gas to 120-820° C. by changing the ratio of the high temperature flue ...

SYSTEMS, METHODS AND TREATMENT CELLS FOR REHABILITATING AND VALORIZING A SOIL

The present invention generally pertains to treatment cells, systems and methods for rehabilitating and valorizing a soil. More specifically, the present invention relates to methods for removing volatile compounds from the contaminated soils. The methods and system generally make use of an openable and reclosable rigid enclosure capable of receiving and treating many tons of soils. According to the invention, heated air is circulated through the soil to allow volatilization of the contaminants which can then be captured and separated form the circulating air before the air is re-heated and re-circulated through the soil. 133-. (canceled)34. A method for removing an unwanted volatile compound from a heap of soil comprising the steps of:a) placing said heap of said soil into a treatment cell adapted for receiving said heap of soil, wherein said treatment cell is rigid and heat-resistant and is adapted for operation at a temperature of at least 150° C. and also adapted for operation at a negative pressure;b) circulating under negative pressure conditions a volume of heated air through the heap of soil placed into the treatment cell in order to create a vacuum on top of said heap of soil and to gradually increase the temperature of the heap of soil until it reaches a temperature sufficient to allow volatilization out from the soil of at least a portion of the volatile compound;c) collecting heated air of step (b) comprising a volatile compound volatilized therein;d) separating at least a portion of said volatilized compound from said air;e) re-heating air of step (d); andf) introducing the re-heated air of step (e) under negative pressure into the treatment cell for re-circulation through said heap of soil.35. The method of claim 34 , wherein step (f) comprises cooling and condensing into liquid vapor contained in the collected heated air.36. The method of claim 34 , wherein steps (b) to (f) are repeated until said heap of soil is relatively exempt from said volatile ...

Apparatus and process for converting refinery and petroleum-based waste to standard fuels

The present invention is an energy efficient method for separating petroleum-based waste including sludge, bottoms or used lubricants. By using solid particles and water, and converting them into useable end products, for example gas and gas/oil fractions. The process produces no wasteful by-products like polluted sewage, heavy asphaltenics and tar by-products. Instead, the process eliminates water through selective adsorption by dewatering additives and the process is followed by drying at high temperatures. The dewatering additives are recycled from other processes and are reusable themselves. After skimming the dewatered matter, the remainder is processed by thermocatalytic cracking. Some of the active materials in the cracking reaction are again waste products of other reactions. The gas and gas oil fractions obtained from this process conform to standard specifications. The process uses equipment that is cost-effective and that are routinely produced. The process and apparatus of the present invention provide a solution for processing refinery and petroleum-based wastes and production of useful and standard liquid fuels.

Verfahren zur bodenreinigung

METHOD FOR PROCESSING CONTAMINATED MINERALS.

Thermal remediation process

A process and apparatus for removing organic and inorganic contaminants from solid media such as drill cuttings, tank bottoms or contaminated soils. The process is conducted in at least one thermal screw conveyor which provides two or more separate temperature zones which can be operated as one or more of low temperature thermal desorption, high temperature thermal desorption and pyrolysis. Preferably the process is conducted in three interconnected thermal screw conveyors which each provide a separate temperature zone. The process is conducted such that the solid media in each of the temperature zones is held under a vacuum. Direct and indirect heating of the solid media in each of the temperature zones is provided. In the pyrolysis zone, an organic binder may be added to encapsulate inorganic contaminants such as metals.

Плазменный процесс и соответствующее оборудование для удаления углеводородов, содержащихся в осадке из резервуаров для хранения нефти, и/или для обработки отходов, содержащих углеводороды

The purification apparatus of a contamination soil

PURPOSE: An apparatus for purifying polluted soil is provided to improve treatment efficiency by continuous process. CONSTITUTION: An apparatus for purifying polluted soil has a vapor collector(55), adsorber(56) and deodorizer(57). The apparatus also comprises a conveyor belt for transferring polluted soil, which has a plurality of refractory plates which is connected to a chain(40). A section of the conveyor belt passes a furnace. The furnace has a plurality of torches(60) for removing oxidation of heavy metal.

一种污染土壤电动修复和热脱附电场及其设置方法

本发明公开了一种污染土壤电动修复和热脱附电场及其设置方法，包括一对电极板、电源、和一对连接线；所述电源的正负极分别通过连接线连接至相应的电极板上；所述电极板由一组电极片和电极框架组成；所述电极片依次安装于电极框架内；所述电极片的外部为一绝缘框架，绝缘框架的两头分别设有一对导电接头；绝缘框架的内部设有至少一层的导电材料。本发明电极实现了模块化，具有结构简单、现场工程施工简便、安装效率高、可重复使用的优点，可根据实际需要安装相应数量、长宽的电极片。

Controlling processes for evaporative desorption processes

Active or closed loop controls can be used to improve the operation of a thermal desorption process. Characteristics of the thermal desorption process can be monitored, and then can be used to predict the end point of the thermal desorption process. Inputs and effluent treatment elements can also be modulated to further optimize the treatment time and quality (completeness) and to avoid any unwanted effects associated with excess processing.

Polluted soil washing apparatus

본 고안은 오염 토양을 초음파 토양 세척 용기에 투입하기 전에 오염 토양의 온도를 상승시켜 주도록 한 오염 토양 세척 장치에 관한 것으로, 전처리장치부가 고온의 증기를 발생시켜 오염 토립자에 쏘여 온도를 상승시켜, 오염 토립자 내부 공극에 고착된 오염 물질에 대한 유체 점성계수를 변화시키며; 초음파토양세척장치부가 전처리장치부에서 유체 점성계수를 변화시킨 오염 토립자를 공급받아, 세척수를 고속으로 진동시켜 초음파를 발생시켜 유체 점성계수를 변화시킨 오염 토립자를 세척한다. The present invention relates to a contaminated soil washing apparatus which raises the temperature of contaminated soil before putting the contaminated soil into the ultrasonic soil washing container. The pretreatment unit generates high-temperature steam and raises the temperature by polluting granules, Varying the fluid viscosity coefficient for contaminants stuck to the voids in the granules; The ultrasonic soil washer unit receives the polluted granules having the fluid viscosity coefficient changed from the pretreatment unit, and washes the polluted granules having the ultrasonic viscosity by vibrating the washing water at high speed to change the fluid viscosity coefficient.

挥发性污染物的净化系统及净化方法

本发明公开了挥发性污染物的净化系统及净化方法，所述挥发性污染物的净化系统包括：骨架，围绕形成净化空间；凸透镜组，安装于所述骨架；热量分配板，位于所述净化空间内，并位于所述凸透镜组的焦点，穿过所述凸透镜组的光线照射于所述热量分配板；传送装置，位于所述热量分配板的下方，并与所述热量分配板相对设置，所述热量分配板用于以热辐射的方式加热所述传送装置上的污染物，使得所述污染物中的挥发性污染物受热离开；负压净化装置，用于抽取所述污染物受热挥发出的挥发性污染物，并引入外界空气进入所述净化空间。其能够将光辐射直接转化成热能或将光辐射先转化成电能再转化成热能，以去除土壤中的挥发性污染物，工艺简单高效。

Method for collecting petroleum product spills on a snow surface at sub-zero temperatures

FIELD: cleaning. SUBSTANCE: invention relates to the field of environmental protection and can be used for restoration of a polluted snow surface by collecting spilled petroleum products at sub-zero temperatures. The substance of the invention: in the immediate vicinity of the site of the petroleum product spill 1, a trench 2 is developed with sufficient depth and area, with a possibility of placing the entire volume of the snow cover and soil polluted with petroleum products therein, embankment 3 is formed along the edges of the trench 2 with the soil obtained in the development of the trench 2, with the exception of the side directly adjacent to the site of the petroleum product spill 1, a heat insulation coating 4 is laid at the bottom of the trench 2, wherein a heating element 5 located evenly in a horizontal plane is mounted on top of said coating, the snow cover and the surface of the soil impregnated with petroleum products are then moved into the trench 2, followed by finishing the embankment 3 of the perimeter of the trench 2, power is supplied to the heating elements 5, wherein the heat flow from said elements melts the snow and the formed ice moved into the trench, after which the petroleum product 7 raised to the surface of water is collected to use as intended or discharge. A heating cable powered from a stationary or mobile power source, used to melt the polluted snow and ice moved into the trench, or a tubular coil pipe heat exchanger, whereto a low-freezing liquid heated to 100°C or superheated steam are supplied and circulated until complete melting of the polluted snow and ice moved into the trench, is used as a heating element 5. EFFECT: increase in the efficiency of collecting petroleum products from a snow surface at sub-zero temperatures. 3 cl, 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 761 091 C1 (51) МПК B09C 1/02 (2006.01) B09C 1/06 (2006.01) E02B 15/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ...

Device for oil wastes recycling

FIELD: oil and gas industry. SUBSTANCE: device for oil waste recycling contains scroll conveyor body, a auger placed in it, a heater, an additional steam generator. The body of the scroll conveyor in the upper part is made in the form of a rectangular box, the bottom wall of which is made in the form of a porous plate with a porosity of 0.2-0.6, on which a horizontal tube bundle is installed. In the lower part, the body is made in the form of two semi-cylindrical slots installed in parallel and connected along a generatrix of a cylindrical surface. The auger is made in the form of two spirals, each of which is installed in a semicylindrical slot. On the axis of each spiral there is a pipe with a porous wall, which is connected to the steam generator with its input. The output of each pipe with a porous wall is connected to a rectangular box. The heater in the form of a tube bundle is installed from the outside on the conveyor body and is connected to the output of a horizontal tube bundle with its input. EFFECT: reduction of hydrocarbon losses during oil wastes recycling, reduced harmful discharges to environment. 4 dwg, 2 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 627 784 C1 (51) МПК B03B 9/02 (2006.01) B09C 1/06 (2006.01) C10G 9/00 (2006.01) C10G 31/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2016117413, 04.05.2016 (24) Дата начала отсчета срока действия патента: 04.05.2016 11.08.2017 Приоритет(ы): (22) Дата подачи заявки: 04.05.2016 1789275 A1, 23.01.1993. RU 2566407 C1, 27.10.2015. SU 917493 A1, 15.06.1985. RU 2507236 C2, 20.02.2014. WO 1998008923 A1, 05.03.1998. R U (54) Устройство для переработки нефтяных отходов (57) Реферат: Изобретение относится к технологии переработки нефтяных отходов и может быть применено в нефтедобывающей и нефтехимической промышленности для получения из отходов углеводородного сырья, а также в энергетике для получения жидких и газообразных топлив из отходов. ...

一种修复重金属和多环芳烃复合污染土壤的方法

本发明属于污染环境中重金属和多环芳烃复合污染修复领域，公开了一种修复重金属和多环芳烃复合污染土壤的方法，包括以下步骤：（1）土壤的前处理；（2）高温热脱附；（3）稳定化处理；（4）稳定化养护。本发明采用高温热脱附，去除重金属和多环芳烃复合污染土壤中多环芳烃有机污染物，通过稳定化药剂对重金属进行稳定化处理，操作简单，修复效率高，处理量大，对环境又好。

Method for the placement of subterranean electrodes

A method for the placement of subterranean electrodes is disclosed and which includes the steps of providing an earth engaging drill; forming a bore hole in the surface of the earth with the earth engaging drill; providing an electrode; and delivering the electrode into the bore hole by employing the earth engaging drill.

In situ thermal waste disposal system

An in situ system for thermally cleansing hazardous and toxic waste disposal sites is disclosed. The system includes a perimeter wall extending into the site which is sealed to a roof structure surrounding the site to encapsulate the site. A plurality of tubes are sunk into the encapsulated site in a geometric pattern and are directly heated to indirectly heat the site. In time, the temperature of the entire site is raised to a level where the waste is volatilized and the volatiles are collected in the roof and subsequently incinerated.

In situ decontamination of spills and landfills by focussed microwave/radio frequency heating and a closed-loop vapor flushing and vacuum recovery system

Moist, warm, clean air from a vapor treatment system is injected into wells which are screened only at the contaminated depth forcing vapor flow only through the contaminated region. Intermediate the injection wells is an extraction well which is also screened only at the contaminated depth. A vacuum is drawn on the extraction well drawing the flushing vapors from the injection wells and toward the extraction well through the contaminated soil thereby entraining some of the contaminants. The contaminants are preferably non-volatile hydrocarbons such as diesel fuel, aviation and jet fuel, crude oil or pesticides. The contaminated, flushing vapor is then treated and recycled. An MW/RF heating system heats the earth's surface and the contaminated soil, thereby enhancing volatilization of the contaminants and their removal via the vapor flushing system. By screening the wells only through the contaminated zone and controlling the flow of clean, moist, warm air through only the contaminated zone, thereby maintaining the contaminated zone in a moist state, the entire energy of the system is focussed on the contaminated region.

Method for isolating, immobilizing and rendering waste non-leachable

A process for treating a contaminated solid unacceptable for disposal in the environment is described whereby the contaminated solid is contacted in a bath of a molten paraffinic hydrocarbon for time sufficient to expel moisture and to coat the solid rendering the contaminant immobile, isolated and unleachable into the environmental system once the paraffin has solidified. An embodiment of this invention employs a zeolite to absorb liquid wastes expelled from the solid.

Controlled verified remediation of excavated spoil

A system and method for controlled verified remediation of excavated contaminated spoil using a sorbent in a verified process of testing and analysis of spoil before and after remediation and of adjusting amounts of sorbent and supplemental water mixed with contaminated spoil.

Construction aggregate from verified remediated spoil

Reliably safe remediated construction aggregate derived from excavated contaminated spoil remediated with a system and method using a sorbent in a verified process of testing and analysis of spoil before and after remediation and of adjusting amounts of sorbent and supplemental water mixed with contaminated spoil.

Soil repair system and method

本申请公开了土壤修复系统和方法。土壤修复系统包括：多个进气钻杆，用于钻入待修复土壤，并向所述待修复土壤通入加热气体；多个气提钻杆，用于钻入所述待修复土壤，并与所述多个进气钻杆交替分布；以及真空泵，与所述多个气提钻杆连通，并用于通过所述多个气提钻杆，从所述待修复土壤中抽取与所述加热气体热交换后挥发的污染气体。由此，当通过进气钻杆向受污染的土壤中通入加热气体时，土壤中的污染物将与高温气体进行热交换，从而易于从土壤中挥发出来。利用真空泵，可对污染气体进行回收处理，以避免其挥发到大气中造成空气污染。

Method for highly efficient heating system of hydrocarbon contaminated soils and effective removal of volatile hydrocarbons

An improved method for heating the aqueous slurries of soils contaminated with tarry/oily organics and volatile compounds. The method includes the steps of heating the slurry (containing inorganic and carbonaceous solids below 1/8 inch) with atmospheric pressure steam in a specially designed slurry heater(s), contacting the hot (95°-99° C.) slurry with the contaminated feed soil (top size 5 inch) in a hydraulic feeder, processing the resultant slurry in a tumbler at temperatures up to 90° C., separating the -1/8 inch solids from the slurry exiting the tumbler and recycling a portion of the -1/8 inch solids in slurry back to slurry heater(s). In order to reach the required temperature in the tumbler, the -1/8 inch slurry has to travel through the tumbler at mass flow rates 1.5-4.0 times higher as compared to those for the soil feed stream. Under such conditions, the fine (-1/8 inch) components of the soil are processed under more rigorous conditions (steam, high temperature, residence time, agitation) compared to large (1/8-5.0 inch) mineral components of the soil. This results in further improvement of thermal efficiency of the process.

Liquid filling device

本发明提供的注液装置，包括容纳腔体，用于直接或间接容纳液体；滴渗导管，一端与容纳腔体连通，另一端具有出液孔；压力调节装置，设置在所述容纳腔体上，用于改变所述溶液所受的压力以控制所述溶液流出所述出液孔的速度。由于上述注液装置可以通过改变溶液所受的压力，来调整溶液流出所述出液孔的速度，从而可以通过控制压力来控制溶液的流速，提高注液装置的可控性；并且，在依靠重力流出速度较慢时，可以通过增加溶液所受的压力来提高溶液的流速，缩短注液时间，增加工作效率。

It is a kind of with solar energy enhanced contaminated soil/underground water original position elution device

本发明公开了一种运用太阳能强化的污染土壤/地下水原位淋洗装置，其包括淋洗修复系统、电动强化系统、微波加热强化系统和太阳能转化系统，所述淋洗修复系统设置于待修复土壤部位的两侧，所述电动强化系统设置于土壤修复系统的内侧，所述微波加热强化系统设置于电动强化系统的内侧，所述太阳能转化系统与电动强化系统和微波加热强化系统连接，用于为电动强化系统和微波加热强化系统提供电能。本发明为一种适用范围广、修复效率高、可避免二次污染的运用太阳能强化的污染土壤/地下水原位淋洗装置。

Purification method of petroleum contaiminated soil using steam and microbe

A method for effectively purifying contaminated soil is provided to remove volatile organic compounds, semi-volatile organic compounds, and non-volatile organic compounds using a complex process including a soil vapor extracting method, a steam injection method, and a biological treatment method. A method for purifying oil-contaminated soil comprises the steps of: digging oil-contaminated soil; injecting the contaminated soil into a reactor(1); generating steam from a steam generator(2); heating the soil within the reactor and supplying water to the soil by the generated steam; recovering and separating volatile organic compounds and semi-volatile organic compounds within the heated reactor; separating the recovered volatile organic compounds and semi-volatile organic compounds into gas and liquid; treating the separated gas in a gas treatment unit(10); storing the separated liquid and separating oil and water from the liquid; and injecting a microorganism culture into the reactor from which the volatile organic compounds and semi-volatile organic compounds have been removed to additionally purify residual contaminants.

Soil remedying using a reaction housing

Apparatus and process for treating contaminated soil includes conduits (14) within the soil which heat the soil. The heating increased the pressure and induces flow out through the conduits.

Method and system for remediating contaminated soil

A method and system for heat remediation of contaminated soil in a cell, including a cover (40) and a plurality of perforated suction tubes (14).

A kind of method that heat strengthens assisted in situ chemical oxidation renovation of organic pollution soil

本发明公开了一种热强化辅助原位化学氧化修复有机污染土壤的方法，该方法包括如下步骤：1)用旋耕机将修复药剂与表层300mm厚的污染土壤混合均匀后平整压实；2)采用GPS定位仪结合三角形法布点，布点参数保证修复药剂扩散半径范围内全部覆盖修复区域；3)采用高压旋喷注射装置在所布点位将修复药剂溶液原位注入；4)在注药孔内安装加热装置，将污染土壤加热升温至30℃～40℃并保持设计温度，直至目标污染物与修复药剂充分反应，使得目标污染物浓度降低至修复目标值以下。本发明修复方法成本低、适用范围广，解决了修复有机污染土壤常用技术原位热脱附系统能耗高，化学氧化法修复效率低、效果差、受低温环境制约的问题。

Apparatus of hybrid type thermal desorption

The present invention suggests a hybrid thermal desorption apparatus which makes one apparatus of a contact type and a non-contact type, and effectively utilizes thermal energy applied to both types. The device comprises: a first inner tank operating contact type thermal desorption by rotating and making thermal energy directly come in contact with pollutants; a first outer tank embedding the first inner tank inside, accommodating thermal energy in a space with the first inner tank, supplying thermal energy accommodated in the first inner tank, and operating non-contact type thermal desorption; and a first discharge unit fixed on one side of the first outer tank and discharging vapor and soil from the first inner tank. Additionally, other inner tanks can be included in the first inner tank.

system for restoring soil polluted by crude oil

본 발명은 원유에 오염된 토양 복원시스템에 관한 것으로, 원유나 유류에 오염된 토양(10)을 운반하는 컨베이어벨트(110)와, 상기 컨베이어벨트(110)에서 운반된 오염된 토양(10)을 고온의 물에 침전시켜 오염물질(11)을 분리하는 분리탱크(120), 및 상기 분리탱크(120)에서 원유나 유류를 제거한 토양(10)에 고온의 증기를 분사하여 잔존 오염물질을 제거하는 복원탱크(140)로 구성하므로 다량의 원유나 유류 등이 유출될 경우 그 오염지역에서 다량으로 유입되는 오염된 많은량의 토양을 단시간 내에 처리하여 복원할 수 있으므로 신속한 복구는 물론 이로 인한 환경오염을 최소화 할 수 있도록 할 뿐만 아니라 전체적 환경의 복원시간을 크게 단축할 수 있는 효과가 있다. The present invention relates to a soil restoration system contaminated with crude oil, comprising: a conveyor belt (110) carrying a soil (10) contaminated with crude oil or oil, and a contaminated soil (10) carried from the conveyor belt (110). Separation tank 120 to separate the contaminants 11 by sedimentation in hot water, and to remove the remaining pollutants by spraying hot steam to the soil (10) from the crude oil or oil removed from the separation tank 120 It consists of a recovery tank 140, so if a large amount of crude oil or oil spills can be recovered by treating a large amount of contaminated soil in a large amount of time from the contaminated area, so that it can be quickly recovered and thus environmental pollution Not only can it be minimized, it can also significantly reduce the restoration time of the whole environment.

Device for processing soil volatile organic pollutant by utilizing low-temperature plasma

本实用新型公开了一种用低温等离子体处理土壤挥发性有机污染物的处理装置，该装置主要由内设有土壤通道和热风通道的土壤床及内设有低温等离子体发生器的低温等离子体反应器组成，土壤进入土壤床中与热风接触使挥发性有机污染物脱附，脱附后的挥发性有机污染物随热风进入低温等离子体反应器与低温等离子体反应实现降解。该处理装置结构简单，处理速度快捷，土有机物的去除无选择性，而且不会造成二次污染，可以连续处理被污染的土壤，适用于工业化大规模的进行污染土壤的修复。

Dynamic underground stripping: steam and electric heating for in situ decontamination of soils and groundwater

A dynamic underground stripping process removes localized underground volatile organic compounds from heterogeneous soils and rock in a relatively short time. This method uses steam injection and electrical resistance heating to heat the contaminated underground area to increase the vapor pressure of the contaminants, thus speeding the process of contaminant removal and making the removal more complete. The injected steam passes through the more permeable sediments, distilling the organic contaminants, which are pumped to the surface. Large electrical currents are also applied to the contaminated area, which heat the impermeable subsurface layers that the steam has not penetrated. The condensed and vaporized contaminants are withdrawn by liquid pumping and vacuum extraction. The steam injection and electrical heating steps are repeated as necessary. Geophysical imaging methods can be used to map the boundary between the hot, dry, contamination-free underground zone and the cool, damp surrounding areas to help monitor the dynamic stripping process.

Ionic contact media for electrodes and soil in conduction heating

Ionic contact is established and maintained between electrodes and soil in ohmic heating of a subsurface formation for recovery of volatile and semi-volatile materials, such as hazardous waste, hydrocarbon-like materials, and valuable minerals having thermally responsive properties. A compressed, dry sponge is wrapped around an electrode, which is then inserted into a bore hole. A conductive liquid is added to the bore hole, causing the sponge to swell, creating a stable and substantial interface for the flow of heating currents.

A kind of method of pulse-heating type processing contaminated soil Thermal desorption tail gas

本发明公开了一种脉冲加热式处理污染土壤热解析尾气的方法，包括：除尘处理、冷却处理、脉冲加热式催化降解、吸收处理；其中的脉冲加热式催化降解是将冷却除尘后的尾气送入催化处理室进行处理，处理过程是伴有吸附‑加热两个阶段的间歇式反应，其中吸附过程是在低温下首先将污染物吸附在催化剂上；检测达到吸附饱和后，将催化剂升温至150‑500℃，催化降解时间为2秒以上；吸附的各种污染物被完全分解，催化剂得以原位再生，再生后的催化剂可继续下一个脉冲吸附阶段。