Desalination System

A desalination system in the form of a submerged gas evaporator that includes a vessel, a gas delivery tube partially disposed within the vessel to deliver a gas into the vessel and a fluid inlet that provides a fluid to the vessel at a rate sufficient to maintain a controlled constant level of fluid within the vessel. During operation, gas introduced through the tube mixes with the fluid and the combined gas and fluid flow at a high rate with a high degree of turbulence, thereby promoting vigorous mixing and intimate contact between the gas and the fluid, which leads to a more efficient and complete evaporation. Additionally, vapor exiting the submerged gas evaporator is condensed in a condensing unit thus precipitating vapor into a liquid for removal. 1. A desalination system , comprising:an evaporator unit, the evaporator unit including an evaporator vessel, a gas supply tube extending into the evaporator vessel, the gas supply tube including an open end within the vessel, a fluid inlet port for supplying fluid into the evaporator vessel, a fluid outlet port for releasing fluid from the evaporator vessel, and a gas exit port that directs gas out of the evaporator vessel;a level sensor disposed within the evaporator vessel for sensing a level of fluid within the evaporator vessel and a control system operatively connected to the level sensor, the control system controlling fluid flow through the fluid inlet port and through the fluid outlet port to maintain an operating level of fluid within the evaporator vessel at or above the open end of the gas supply tube; anda condensing unit, the condensing unit including a condensing vessel having an inlet and an outlet for supplying a cooling fluid to an interior of the condensing vessel, a vapor pipe passing through the condensing vessel and located at least partially within the condensing vessel at an elevation below a normal operating level of the cooling fluid, the vapor pipe being fluidly connected to the gas exit ...

COOLING TOWER

A cooling tower includes an evaporator vessel, a gas delivery tube partially disposed within the evaporator vessel and a liquid inlet that provides liquid to the evaporator vessel. A weir is disposed within the evaporator vessel adjacent the gas delivery tube to form a first liquid circulation path between a first weir end and a wall of the evaporator vessel and a second fluid circulation path between a second weir end and another wall of the evaporator vessel. During operation, gas introduced through the tube mixes with the liquid and the combined gas and liquid flow at a high rate with a high degree of turbulence along the first and second circulation paths defined around the weir, thereby promoting vigorous mixing and intimate contact between the gas and the liquid. This turbulent flow leads to a more efficient and complete heat and mass transfer between the gas and the liquid. 1. A cooling tower comprising:an evaporator vessel having an interior for holding a liquid;a gas inlet tube disposed within the evaporator vessel for transporting a gas into the interior of the evaporator vessel;a weir disposed within the evaporator vessel adjacent to the gas inlet tube;a gas exit port for transporting gas from the interior of the evaporator vessel; anda liquid inlet for supplying the liquid to the interior of the evaporator vessel;wherein the weir includes a first weir end and a second weir end and is disposed within the evaporator vessel to define a first circulation gap between the first weir end and a first wall of the evaporator vessel and to define a second circulation gap between the second weir end and a second wall of the evaporator vessel, liquid within the evaporator vessel being caused to circulate through the first and second circulation gaps when gas is introduced into the evaporator vessel from the gas tube, andwherein a temperature of gas that is transported into the interior of the evaporator vessel through the gas inlet tube is less than a temperature of ...

LIQUID CONCENTRATOR

A liquid concentrator having an evaporator assembly and a cyclonic separator includes features designed to improve the performance of the liquid concentrator. A settling chamber is separated from a sump of the cyclonic separator. A liquid inlet opening into a mixing chamber of the evaporator injects wastewater at low pressures. Features to aid in the cleaning of the liquid concentrator include easy open doors and clean water injection ports for cleaning interior portions of the liquid concentrator. 1. A liquid concentrator comprising:an evaporator assembly arranged to mix wastewater with gas and evaporate liquids from the wastewatera cyclonic separator arranged to receive the mixed wastewater and gas from the evaporator assembly and to separate the gas and the evaporated liquids from solids and the wastewater;a sump disposed below the cyclonic separator arranged to collect the solids and wastewater separated in the cyclonic separator; anda settling chamber arranged to receive the solids and wastewater from the sump;wherein the settling chamber is separated from the sump.2. The liquid concentrator of claim 1 , wherein the evaporator assembly comprises a mixing corridor having a mixing chamber arranged to receive the wastewater and gas and an evaporator section connected with the mixing chamber claim 1 , and wherein the evaporator section comprises a venturi arranged to mix and evaporate the wastewater in the gas.3. The liquid concentrator of claim 2 , further comprising a conduit arranged to transfer wastewater from the settling chamber to a liquid inlet opening into the mixing chamber.4. The liquid concentrator of claim 3 , wherein the cyclonic separator comprises a tubular vessel having an axis arranged in a substantially vertical orientation claim 3 , the evaporator section operatively connected to feed the mixed wastewater and gas into a lower portion of the tubular vessel claim 3 , and an exhaust outlet through an upper portion of the tubular vessel.5. The ...

PORTABLE COMPACT WASTEWATER CONCENTRATOR

A compact and portable liquid concentrator includes a gas inlet, a gas exit and a flow corridor connecting the gas inlet and the gas exit, wherein the flow corridor includes a narrowed portion that accelerates the gas through the flow corridor. A liquid inlet injects liquid into the gas stream at a point prior to the narrowed portion so that the gas-liquid mixture is thoroughly mixed within the flow corridor, causing a portion of the liquid to be evaporated. A demister or fluid scrubber downstream of the narrowed portion removes entrained liquid droplets from the gas stream and re-circulates the removed liquid to the liquid inlet through a re-circulating circuit. The compact and portable liquid concentrator is mountable on a truck bed or skid for easy transportation to remote sites. 1. A wastewater concentrator system comprising:a portable compact wastewater concentrator including a flare assembly, an air pre-treatment assembly, a concentrator assembly, a fluid scrubber, and an exhaust section; anda first truck bed,wherein the flare assembly, the air pre-treatment assembly, the concentrator assembly, the fluid scrubber and the exhaust section are mounted on the first truck bed for efficient transportation of the wastewater concentrator system to remote operating locations.2. The wastewater concentrator system of claim 1 , further comprising a pre-treatment and water recovery section.3. The wastewater concentrator system of claim 2 , wherein the pre-treatment and water recovery section is mounted on a second truck bed.4. The wastewater concentrator system of claim 3 , wherein the first truck bed and the second truck bed are positioned adjacent one another and the compact wastewater concentrator is fluidly connected with the pre-treatment and water recovery section.5. The wastewater concentrator system of claim 3 , wherein the first and second truck beds are located adjacent to a natural gas well pad.6. The wastewater concentrator system of claim 3 , further ...

AIR STRIPPER

An air stripper includes a vessel, a gas delivery tube to deliver a gas into the vessel and a contaminated liquid inlet that provides a contaminated liquid to the vessel at a rate sufficient to maintain a controlled constant level of process fluid within the vessel. A weir is disposed within the vessel adjacent the gas delivery tube to form a first fluid circulation path between a first weir end and a wall of the vessel and a second fluid circulation path between a second weir end and an upper end of the vessel. During operation, gas introduced through the tube mixes with the process fluid and the combined gas and fluid flow at a high rate with a high degree of turbulence along the first and second circulation paths defined around the weir, thereby promoting vigorous mixing and intimate contact between the gas and the process fluid. 1. A method of remediating a contaminated liquid having volatile contaminants in an air stripper having a weir disposed within a vessel to define first and second volumes within the vessel and a gas delivery tube extending into the vessel into the first volume , the method comprising:supplying contaminated liquid to the vessel at a rate sufficient to maintain a process fluid surface level in the vessel above a first end of the weir and above a second end of the weir when the air stripper is operating;providing a gas through the gas delivery tube to force the gas through an exit in the gas delivery tube to cause mixing of the gas and the process fluid within the first volume by creating a circular flow of process fluid from the first volume around the first end of the weir into the second volume and from the second volume around a second end of the weir and into the first volume;removing process fluid through a fluid exit port; andremoving the gas through a gas exit port in the vessel.2. The method of claim 1 , further including removing process fluid with suspended particulate from the vessel.3. The method of claim 1 , wherein providing ...

FLUID EVAPORATOR FOR AN OPEN FLUID RESERVOIR

A reservoir evaporation system for evaporating fluid from an open reservoir of effluent containing a contaminant includes a fluid evaporator, an air pump, and an air supply conduit functionally connecting the fluid evaporator with the air pump. The fluid evaporator includes a vessel adapted to be positioned in an operative position partially submerged on the top surface of the effluent in the reservoir with a lower chamber submerged in the effluent and an upper chamber extending above the top surface of the effluent. In operation, air from the air pump mixes with the effluent inside the fluid evaporator and subsequently is discharged through exhaust openings. A fluid discharge pipe can also simultaneously discharge aerated effluent back down into the reservoir. Fluid is thereby separated from the effluent in the lower chamber by evaporation in a controlled manner that minimizes spread of contaminants to surrounding environments by wind. 1. A fluid evaporator for evaporating fluid from an open fluid reservoir , the fluid evaporator comprising:a partially enclosed vessel having an upper chamber and a lower chamber, the vessel arranged to be operatively positioned in the fluid reservoir with the upper chamber disposed above a top surface of the fluid and the lower chamber disposed in the fluid;a first opening through a lower portion of the lower chamber;a gas supply tube extending into the lower chamber and having an air outlet disposed between the opening through the lower portion of the lower chamber and an upper portion of the lower chamber;an exhaust opening through the upper chamber and in fluid communication with the air outlet; anda discharge conduit having an inlet in fluid communication with the lower chamber and an outlet disposed below the lower chamber, the inlet separated from the lower portion of the chamber by a weir;wherein, when operatively positioned in the fluid reservoir, fluid from the fluid reservoir can enter into the lower chamber through the ...

Liquid concentrator

A liquid concentrator having an evaporator assembly and a cyclonic separator includes features designed to improve the performance of the liquid concentrator. A settling chamber is separated from a sump of the cyclonic separator. A liquid inlet opening into a mixing chamber of the evaporator injects wastewater at low pressures. Features to aid in the cleaning of the liquid concentrator include easy open doors and clean water injection ports for cleaning interior portions of the liquid concentrator. In one feature a settling tank is disposed below the cyclonic separator and has a width that is larger than the width of the cyclonic separator. In another variation, the cyclonic separator has a tubular body with an interior that is substantially unobstructed between an inlet from the evaporator assembly and an exhaust outlet. In yet another variation, the cyclonic separator has an upper chamber that is separated from a lower chamber.

Compact wastewater concentrator using waste heat

A compact and portable liquid concentrator includes a gas inlet, a gas exit and a flow corridor connecting the gas inlet and the gas exit, wherein the flow corridor includes a narrowed portion that accelerates the gas through the flow corridor. A liquid inlet injects liquid into the gas stream at a point prior to the narrowed portion so that the gas-liquid mixture is thoroughly mixed within the flow corridor, causing a portion of the liquid to be evaporated. A demister or fluid scrubber downstream of the narrowed portion removes entrained liquid droplets from the gas stream and re-circulates the removed liquid to the liquid inlet through a re-circulating circuit. Fresh liquid to be concentrated is also introduced into the re-circulating circuit at a rate sufficient to offset the amount of liquid evaporated in the flow corridor.

CONDENSATION PLUME MITIGATION SYSTEM FOR EXHAUST STACKS

An exhaust gas plume mitigation process and system includes either mixing secondary heat into a moisture rich exhaust gas stream, or diverting a moisture rich exhaust gas stream into a primary exhaust stack having hot exhaust gases flowing therethrough. Moisture rich exhaust gas from a liquid concentrator may be diverted into a high temperature exhaust stack of an engine, a generator, or a flare. The high temperature exhaust gases from the engine, the generator, or the flare raise the temperature of the moisture rich exhaust gas from the concentrator. The high temperature exhaust gases from the engine, the generator, or the flare are also lower in moisture content, so that the moisture rich exhaust gas from the concentrator is diluted by the drier high temperature exhaust gas. As a result, the mixed gas is less likely to develop a moisture plume upon exit to the atmosphere. 1. A plume mitigation system for a wastewater concentrator , the plume mitigation system comprising:a primary transfer pipe fluidly connected to an exhaust stack, the primary transfer pipe diverting at least a portion of exhaust gas flowing through the exhaust stack to the wastewater concentrator; anda return pipe fluidly connected to the concentrator and to the exhaust stack, the return pipe directing a moisture rich gas flow from the concentrator to the exhaust stack,wherein the primary transfer pipe is fluidly connected to the exhaust stack at a first location and the return pipe is fluidly connected to the exhaust stack at a second location, the second location being downstream of the first location in a direction of gas flow through the exhaust stack, andwherein moisture rich gas exiting the concentrator is mixed with exhaust gas in the exhaust stack, thereby effectively lowering a relative humidity of the moisture rich gas, which makes the combined exhaust gas and moisture rich gas less likely to form a condensation plume upon exiting the exhaust stack to the atmosphere.2. The plume ...

Liquid Evaporation System with Heated Liquid

A liquid evaporation system for evaporating clean water from a reservoir of wastewater includes a liquid evaporator to evaporate and separate water vapor from the wastewater in a confined space, an air blower to supply air to the liquid evaporator, and a wastewater heating system arranged to collect heat to heat the wastewater in the reservoir.

Method of Cleaning a Compact Wastewater Concentrator

A method of cleaning compact wastewater concentrator cleans accreted salts from inner surfaces of a compact wastewater concentrator having a demister including mist eliminators. The method of cleaning is simple and quick and eliminates a majority of accreted salts by re-dissolving the salts in relatively dilute process water. 1. A method of cleaning a compact wastewater concentrator having an evaporator assembly defining a mixing corridor including a mixing chamber arranged to receive wastewater and gas and an evaporator section connected with the mixing chamber arranged to mix the wastewater with the gas and evaporate liquids from the wastewater; a demister operatively connected with the evaporator section and arranged to receive the mixed wastewater and gas and to separate the gas and the evaporated liquids from solids and the wastewater; and a conduit arranged to transfer the wastewater separated in the demister to a liquid inlet opening into the mixing chamber , the method comprising:turning off a blower and an infeed pump of the concentrator;opening a thickener inlet valve to a thickening tank to allow fluid to flow from a sump of the demister to the thickening tank;closing a thickener return valve to prevent fluid from flowing from the thickening tank back to the sump;turning on a sump pump to pump liquid from the sump to the thickening tank;turning off the sump pump when the sump is empty;closing the thickener inlet valve to fluidly isolate the sump from the thickening tank;opening a service water valve of the concentrator;opening a sump make-up valve of the concentrator to allow fresh unconcentrated wastewater to flow into the sump through a make-up water line;closing the sump make-up valve when the sump is full of unconcentrated wastewater;starting a flare and a blower fan of the concentrator;operating the concentrator for a predetermined period of time;checking a saturation level of the wastewater in the sump;returning to the step of turning off the blower ...

WASTEWATER PROCESSING SYSTEMS FOR POWER PLANT FLUE GAS DESULFURIZATION WATER AND OTHER INDUSTRIAL WASTEWATERS

Methods, systems, and/or apparatuses for treating wastewater produced at a thermoelectric power plant, other industrial plants, and/or other industrial sources are disclosed. The wastewater is directed through a wastewater concentrator including a direct contact adiabatic concentration system. A stream of hot feed gases is directed through the wastewater concentrator. The wastewater concentrator mixes the hot feed gases directly with the wastewater and evaporates water vapor from the wastewater. The wastewater concentrator separates the water vapor from remaining concentrated wastewater. A contained air-water interface liquid evaporator may be arranged to pre-process the wastewater before being treated by the wastewater concentrator. 1. A wastewater treatment system for a thermoelectric power plant , the system comprising:a wastewater concentrator implementing a direct contact adiabatic wastewater concentrator system, the wastewater concentrator comprising a direct contact evaporative section and a gas-liquid separator;a stream of wastewater generated in a thermoelectric power plant operatively connected to the wastewater concentrator to supply the wastewater to the direct contact evaporative section; anda stream of hot feed gases operatively connected to the wastewater concentrator to supply feed gases to the direct contact evaporative section simultaneously as the stream of wastewater;wherein the direct contact evaporative section mixes the hot feed gases directly with the wastewater and evaporates water from the wastewater to form water vapor and concentrated wastewater, andwherein the gas-liquid separator separates the water vapor from the concentrated wastewater and exhausts discharge gases from the gas-liquid separator, including the water vapor and some or all of the feed gases.2. The wastewater treatment system of claim 1 , wherein the stream of wastewater comprises at least one of flue gas desulfurization purge water claim 1 , cooling tower purge water ...

METHOD AND DEVICE FOR CONCENTRATING DISSOLVED SOLIDS IN FLOWBACK AND PRODUCED WATER FROM NATURAL GAS WELLS

A wastewater concentrator a liquid evaporator assembly, a gas-liquid separator, an exhaust assembly, and a flowback water concentrating system. The flowback water concentrating system includes a settling tank fluidly connected to the gas-liquid separator and a supernatant liquid concentration sensor for measuring a concentration of dissolved solids in the supernatant liquid in the settling tank. 1. A method of concentrating dissolved solids in flowback water or produced water from a natural gas well , the method comprising:collecting one of flowback water and produced water from a natural gas well;evaporating a portion of the flowback water or produced water in a liquid concentrator, thereby producing a concentrated liquid;collecting the concentrated liquid and directing the a portion of the concentrated liquid to a settling tank;separating the concentrated liquid in the settling tank into a supernatant liquid that is substantially free of suspended solids and a concentrated slurry;measuring a level of dissolved solids in the supernatant liquid in the settling tank; andextracting a portion of the supernatant liquid when a desired concentration of dissolved solids is reached.2. The method of claim 1 , wherein the desired concentration is 10 lb/gal or more.3. The method of claim 2 , wherein the desired concentration is 12 lb/gal or more.4. The method of claim 3 , wherein the desired concentration is 14 lb/gal or more.5. The method of claim 1 , wherein the dissolved solids in the flowback or produced water comprise sodium chloride.6. The method of claim 1 , wherein the dissolved solids in the flowback or produced water comprise calcium chloride.7. The method of claim 1 , wherein the dissolved solids in the flowback or produced water comprise magnesium chloride.8. The method of claim 1 , further comprising mixing the extracted supernatant liquid with fracking water for a natural gas well.9. The method of claim 1 , further comprising injecting at least a portion of the ...

WASTEWATER PROCESSING SYSTEMS FOR POWER PLANTS AND OTHER INDUSTRIAL SOURCES

Methods, systems, and/or apparatuses for treating wastewater produced at a thermoelectric power plant, other industrial plants, and/or other industrial sources are disclosed. The wastewater is directed through a wastewater concentrator including a direct contact adiabatic concentration system. A stream of hot feed gases is directed through the wastewater concentrator. The wastewater concentrator mixes the hot feed gases directly with the wastewater and evaporates water vapor from the wastewater. The wastewater concentrator separates the water vapor from remaining concentrated wastewater. A contained air-water interface liquid evaporator may be arranged to pre-process the wastewater before being treated by the wastewater concentrator. 1. A wastewater treatment system for a thermoelectric power plant , the system comprising:a first wastewater concentrator operatively connected to a wastewater holding reservoir, the first wastewater concentrator implementing a contained air-water interface liquid evaporator;a second wastewater concentrator operatively connected to the wastewater holding reservoir, the second wastewater concentrator implementing a direct contact adiabatic wastewater concentrator system, the second wastewater concentrator comprising a direct contact evaporative section and a gas-liquid separator;a stream of wastewater generated in a thermoelectric power plant operatively connected to the wastewater holding reservoir; anda stream of hot feed gases operatively connected to the second wastewater concentrator to supply feed gases to the direct contact evaporative section simultaneously as the stream of wastewater;wherein the direct contact evaporative section mixes the hot feed gases directly with the wastewater and evaporates water from the wastewater to form water vapor and concentrated wastewater, andwherein the gas-liquid separator separates the water vapor from the concentrated wastewater and exhausts discharge gases from the gas-liquid separator, ...

COMPACT WASTEWATER CONCENTRATOR USING WASTE HEAT

A compact and portable liquid concentrator includes a gas inlet, a gas exit and a flow corridor connecting the gas inlet and the gas exit, wherein the flow corridor includes a narrowed portion that accelerates the gas through the flow corridor. A liquid inlet injects liquid into the gas stream at a point prior to the narrowed portion so that the gas-liquid mixture is thoroughly mixed within the flow corridor, causing a portion of the liquid to be evaporated. A demister or fluid scrubber downstream of the narrowed portion removes entrained liquid droplets from the gas stream and re-circulates the removed liquid to the liquid inlet through a re-circulating circuit. Fresh liquid to be concentrated is also introduced into the re-circulating circuit at a rate sufficient to offset the amount of liquid evaporated in the flow corridor. 1. A liquid concentrator system , comprising: a gas inlet,', 'a gas outlet,', 'a mixing corridor disposed between the gas inlet and the gas outlet, the mixing corridor having a narrowed portion in which gas flow within the mixing corridor accelerates when traveling from the gas inlet to the gas outlet; and', 'a liquid inlet through which liquid to be concentrated is injected into the mixing corridor, the liquid inlet disposed in the mixing corridor between the gas inlet and the narrowed portion;, 'a concentrator section including;'} a demister gas flow passage coupled to the gas outlet of the concentrator section,', 'a liquid collector disposed in the demister gas flow passage to remove liquid from gas flowing in the demister gas flow passage, and', 'a reservoir that collects the liquid removed from the gas flowing in the demister gas flow passage by the liquid collector; and, 'a demister disposed downstream of the concentrator section, the demister including;'}a fan coupled to the demister to assist gas flow through the mixing corridor and the gas flow passage.2. The liquid concentrator system of claim 1 , further including a re-circulating ...

WASTEWATER CONCENTRATION SYSTEM

A wastewater concentrator system is portable and scalable to effectively process up to forty thousand gallons of wastewater per day and more. The system has a portable assembly including a liquid evaporator assembly, gas-liquid separator, and exhaust assembly carried by a skid, which can be carried as a single unit on a mobile platform. The liquid evaporator assembly includes wastewater injection nozzles arranged to minimize buildup of material inside a mixing chamber. The gas-liquid separator has top access doors for installing and removing demister panels through a top wall and a sump adapted to provide scalability of the system to larger processing capacities while maintaining the portability. The system is adapted for connection to a plurality of heated gas sources and includes a control system designed to maintain a selected operating condition regardless of variations in the amount of heated gases supplied. 1. A portable wastewater concentrator assembly comprising: a liquid evaporator assembly,', 'a gas-liquid separator connected with the liquid evaporator assembly,', 'an exhaust assembly having a fan connected with the gas-liquid separator, and', 'a power plant assembly connected with the exhaust assembly and arranged to drive the fan;, 'a wastewater concentrator including'}a skid, wherein the wastewater concentrator is attached to and carried by the skid; anda mobile hauling platform;wherein the skid is removably carried by the mobile hauling platform, whereby the wastewater concentrator may be hauled as a single unit on the mobile hauling platform for transportation on roads and to remote operating locations.2. The portable wastewater concentrator assembly of claim 1 , wherein the skid further comprises a support frame disposed below the liquid evaporator assembly claim 1 , gas-liquid separator claim 1 , exhaust assembly claim 1 , and power plant assembly claim 1 , wherein the wastewater concentrator may be removed from the mobile hauling platform as a ...

LIQUID CONCENTRATOR

A liquid concentrator having an evaporator assembly and a cyclonic separator includes features designed to improve the performance of the liquid concentrator. A settling chamber is separated from a sump of the cyclonic separator. A liquid inlet opening into a mixing chamber of the evaporator injects wastewater at low pressures. Features to aid in the cleaning of the liquid concentrator include easy open doors and clean water injection ports for cleaning interior portions of the liquid concentrator. 112-. (canceled)13. A liquid concentrator comprising:an evaporator assembly defining a mixing corridor having a mixing chamber arranged to receive wastewater and gas and an evaporator section connected with the mixing chamber arranged to mix the wastewater with the gas and evaporate liquids from the wastewater;a cyclonic separator operatively connected with the evaporator section and arranged to receive the mixed wastewater and gas and to separate the gas and the evaporated liquids from solids and the wastewater; anda conduit arranged to transfer the wastewater separated in the cyclonic separator to a liquid inlet opening into the mixing chamber, wherein the liquid inlet comprises a low-pressure injection port, wherein the low-pressure injection port injects wastewater at a pressure of about ten psig or less.14. The liquid concentrator of claim 13 , wherein the low-pressure injection port injects the wastewater at a pressure of about five psig or less.15. The liquid concentrator of claim 14 , wherein the low-pressure injection port injects the wastewater at a pressure of about two psig.16. The liquid concentrator of claim 13 , wherein the low-pressure injection port includes a spray nozzle.17. The liquid concentrator of claim 13 , wherein the low-pressure injection port does not have a spray nozzle.18. The liquid concentrator of claim 17 , comprising a baffle arranged to deflect wastewater entering the mixing chamber through the low-pressure injection port.19. A liquid ...

LIQUID CONCENTRATOR

A liquid concentrator having an evaporator assembly and a cyclonic separator includes features designed to improve the performance of the liquid concentrator. A settling chamber is separated from a sump of the cyclonic separator. A liquid inlet opening into a mixing chamber of the evaporator injects wastewater at low pressures. Features to aid in the cleaning of the liquid concentrator include easy open doors and clean water injection ports for cleaning interior portions of the liquid concentrator. In one feature a settling tank is disposed below the cyclonic separator and has a width that is larger than the width of the cyclonic separator. In another variation, the cyclonic separator has a tubular body with an interior that is substantially unobstructed between an inlet from the evaporator assembly and an exhaust outlet. In yet another variation, the cyclonic separator has an upper chamber that is separated from a lower chamber. 1. A liquid concentrator comprising:an evaporator assembly arranged to mix wastewater with gas and evaporate liquids from the wastewater;a cyclonic separator arranged to receive the mixed wastewater and gas from the evaporator assembly and to separate the gas and the evaporated liquids from solids and the wastewater; anda settling chamber disposed below the cyclonic separator for receiving the solids and liquids from the cyclonic separator;wherein the cyclonic separator has a first width adjacent the settling chamber, and the settling chamber has a second width larger than the first width.2. The liquid concentrator of claim 1 , wherein the first width comprises an inside diameter of an opening connecting the cyclonic separator.3. The liquid concentrator of claim 2 , wherein the cyclonic separator comprises a tubular vessel having an axis arranged in a substantially vertical orientation claim 2 , the evaporator assembly operatively connected to feed the mixed wastewater and gas into a lower portion of the tubular vessel claim 2 , and an ...

CONCENTRATED WASTEWATER SLURRY THICKENING AND STORAGE SYSTEM AND STABILIZATION BATCH TREATMENT PLANT

A wastewater concentrator a liquid evaporator assembly, a gas-liquid separator, an exhaust assembly, and a slurry thickening and storage system. The slurry thickening and storage system includes a slurry thickening tank fluidly connected to the gas-liquid separator and a thickened slurry storage tank fluidly connected to the slurry thickening tank.

Compact Wastewater Concentrator Using Waste Heat

A compact and portable liquid concentrator includes a gas inlet, a gas exit and a flow corridor connecting the gas inlet and the gas exit, wherein the flow corridor includes a narrowed portion that accelerates the gas through the flow corridor. A liquid inlet injects liquid into the gas stream at a point prior to the narrowed portion so that the gas-liquid mixture is thoroughly mixed within the flow corridor, causing a portion of the liquid to be evaporated. A demister or fluid scrubber downstream of the narrowed portion removes entrained liquid droplets from the gas stream and re-circulates the removed liquid to the liquid inlet through a re-circulating circuit. Fresh liquid to be concentrated is also introduced into the re-circulating circuit at a rate sufficient to offset the amount of liquid evaporated in the flow corridor. 1. A liquid concentrator system , comprising: a gas inlet,', 'a gas outlet,', 'a mixing corridor disposed between the gas inlet and the gas outlet, the mixing corridor having a narrowed portion in which gas flow within the mixing corridor accelerates when traveling from the gas inlet to the gas outlet; and', 'a liquid inlet through which liquid to be concentrated is injected into the mixing corridor, the liquid inlet disposed in the mixing corridor between the gas inlet and the narrowed portion;, 'a concentrator section including;'} a demister gas flow passage coupled to the gas outlet of the concentrator section,', 'liquid collector disposed in the demister gas flow passage to remove liquid from gas flowing in the demister gas flow passage, and, 'a demister disposed downstream of the concentrator section, the demister including;'}a reservoir that collects the liquid removed from the gas flowing in the demister gas flow passage by the liquid collector; anda fan coupled to the demister to assist gas flow through the mixing corridor and the gas flow passage, the fan being connected to a variable frequency drive motor that operates to vary the ...

Apparatus For Concentrating Wastewater And For Creating Brines

A liquid concentrator system includes a concentrator section having a gas inlet, a gas outlet, and a mixing corridor disposed between the gas inlet and the gas outlet. A liquid inlet is disposed in the mixing corridor between the gas inlet and a narrowed portion. A demister is disposed downstream of the concentrator section. The demister includes a liquid collector to remove liquid from gas flowing through the demister, and a reservoir that collects the removed liquid. A re-circulating circuit is disposed between reservoir and the mixing corridor to transport liquid within the reservoir to the mixing corridor, and a secondary re-circulating circuit includes a settling tank to separate saturated liquid and suspended solids. A custom brine mixing device is operatively coupled to the settling tank. 1. A liquid concentrator system , comprising: a gas inlet,', 'a gas outlet,', 'a mixing corridor disposed between the gas inlet and the gas outlet, the mixing corridor having a narrowed portion in which gas flow within the mixing corridor accelerates when traveling from the gas inlet to the gas outlet; and', 'a liquid inlet through which liquid to be concentrated is injected into the mixing corridor, the liquid inlet disposed in the mixing corridor between the gas inlet and the narrowed portion;, 'a concentrator section including;'} a demister gas flow passage coupled to the gas outlet of the concentrator section,', 'a liquid collector disposed in the demister gas flow passage to remove liquid from gas flowing in the demister gas flow passage, and', 'a reservoir that collects the liquid removed from the gas flowing in the demister gas flow passage by the liquid collector;, 'a demister disposed downstream of the concentrator section, the demister including;'}a re-circulating circuit disposed between reservoir and the mixing corridor to transport liquid within the reservoir to the mixing corridor;a secondary re-circulating circuit including a settling tank to separate ...

COMPACT WASTEWATER CONCENTRATOR USING WASTE HEAT

A compact and portable liquid concentrator includes a gas inlet, a gas exit and a flow corridor connecting the gas inlet and the gas exit, wherein the flow corridor includes a narrowed portion that accelerates the gas through the flow corridor. A liquid inlet injects liquid into the gas stream at a point prior to the narrowed portion so that the gas-liquid mixture is thoroughly mixed within the flow corridor, causing a portion of the liquid to be evaporated. A demister or fluid scrubber downstream of the narrowed portion removes entrained liquid droplets from the gas stream and re-circulates the removed liquid to the liquid inlet through a re-circulating circuit. Fresh liquid to be concentrated is also introduced into the re-circulating circuit at a rate sufficient to offset the amount of liquid evaporated in the flow corridor. 1. A liquid concentrator system , comprising: a gas inlet,', 'a gas outlet,', 'a mixing corridor disposed between the gas inlet and the gas outlet, the mixing corridor having a narrowed portion in which gas flow within the mixing corridor accelerates when traveling from the gas inlet to the gas outlet; and', 'a liquid inlet through which liquid to be concentrated is injected into the mixing corridor, the liquid inlet disposed in the mixing corridor between the gas inlet and the narrowed portion;, 'a concentrator section including;'} a demister gas flow passage coupled to the gas outlet of the concentrator section,', 'a liquid collector disposed in the demister gas flow passage to remove liquid from gas flowing in the demister gas flow passage, and', 'a reservoir that collects the liquid removed from the gas flowing in the demister gas flow passage by the liquid collector; and, 'a demister disposed downstream of the concentrator section, the demister including;'}a fan coupled to the demister to assist gas flow through the mixing corridor and the gas flow passage.2. The concentrator system of claim 1 , wherein the reservoir includes a V-shaped ...

SELECTIVE SEPARATION AND CONCENTRATION SYSTEM FOR WATER SOLUBLE SALTS

A direct contact liquid concentrator selectively separates and concentrates water soluble salts from a wastewater stream containing two or more water soluble salts by concentrating the wastewater stream until the concentrated wastewater stream approaches or reaches a saturation level of the first water soluble salt; delivering the concentrated wastewater to a first settling tank, where the first water soluble salt begins to precipitate out of solution in solid form; drawing a first liquid solution from the first settling tank and sending the liquid solution to a second settling tank; and drawing a second liquid solution from the second settling tank, the second liquid solution having a higher ratio of a second water soluble salt to the first water soluble salt than the first liquid solution. 1. A selective separation and concentration system for water soluble salts , the system comprising:a holding tank for containing a feed liquid that includes at least two water soluble salts dissolved therein in a first concentration ratio;a liquid concentrator, the liquid concentrator evaporating a portion of the feed liquid, thereby concentrating the dissolved salts while maintaining the first concentration ratio;a first partially concentrated feed line adapted to extract partially concentrated feed liquid from the concentrator,a first settling tank connected to the first partially concentrated feed line, the first settling tank being adapted to hold a volume of partially concentrated feed liquid;a second partially concentrated feed line connected to the first settling tank and adapted to extract partially concentrated feed liquid from the first settling tank;a second settling tank connected to the second partially concentrated feed line, the second settling tank being adapted to hold a volume of partially concentrated feed liquid; anda return line fluidly connected to the second settling tank and to the concentrator, the return line being adapted to return partially ...

COMPACT WASTEWATER CONCENTRATOR UTILIZING A LOW TEMPERATURE THERMAL ENERGY SOURCE

A compact and portable liquid concentrator includes a gas inlet, a gas exit and a flow corridor connecting the gas inlet and the gas exit, wherein the flow corridor includes a narrowed portion that accelerates the gas through the flow corridor. A liquid inlet injects liquid into the gas stream at a point prior to the narrowed portion so that the gas-liquid mixture is thoroughly mixed within the flow corridor, causing a portion of the liquid to be evaporated. A demister or fluid scrubber downstream of the narrowed portion removes entrained liquid droplets from the gas stream and re-circulates the removed liquid to the liquid inlet through a re-circulating circuit. A source of low energy gas, such as low pressure steam from a power plant, is connected to the liquid to be concentrated to heat the liquid to be concentrated before or during the concentration process. 1. A liquid concentrator , comprising: a gas inlet,', 'a gas outlet,', 'a mixing corridor disposed between the gas inlet and the gas outlet, the mixing corridor having a narrowed portion in which gas flow within the mixing corridor accelerates when traveling from the gas inlet to the gas outlet; and', 'a liquid inlet through which liquid to be concentrated is injected into the mixing corridor, the liquid inlet disposed in the mixing corridor between the gas inlet and the narrowed portion;, 'a concentrator section including;'} a demister gas flow passage coupled to the gas outlet of the concentrator section,', 'a liquid collector disposed in the demister gas flow passage to remove liquid from gas flowing in the demister gas flow passage, and', 'a reservoir that collects the liquid removed from the gas flowing in the demister gas flow passage by the liquid collector; and, 'a demister disposed downstream of the concentrator section, the demister including;'}a heat exchanger fluidly connected to the reservoir, the heat exchanger being fluidly coupled to a source of low temperature gas.2. The liquid concentrator ...

FLUID EVAPORATOR FOR AN OPEN FLUID RESERVOIR

A reservoir evaporation system for evaporating fluid from an open reservoir of effluent containing a contaminant includes a fluid evaporator, an air pump, and an air supply conduit functionally connecting the fluid evaporator with the air pump. The fluid evaporator includes a vessel adapted to be positioned in an operative position partially submerged on the top surface of the effluent in the reservoir with a lower chamber submerged in the effluent and an upper chamber extending above the top surface of the effluent. In operation, air from the air pump mixes with the effluent inside the fluid evaporator and subsequently is discharged through exhaust openings. A fluid discharge pipe can also simultaneously discharge aerated effluent back down into the reservoir. Fluid is thereby separated from the effluent in the lower chamber by evaporation in a controlled manner that minimizes spread of contaminants to surrounding environments by wind. 133-. (canceled)34. A reservoir evaporation system for evaporating fluid from an open reservoir of effluent containing a fluid and a contaminant , the system comprising:a fluid evaporator comprising a vessel with an upper chamber and a lower chamber, the vessel adapted to float in an operative position partially submerged on the top surface of the effluent in the reservoir with the lower chamber submerged in the effluent and the upper chamber extending above a top surface of the effluent, a first opening into a lower portion of the lower chamber to allow the effluent to enter the chamber, and an exhaust opening into the upper chamber disposed to be above the top surface of the effluent and in communication with the lower chamber;an air pump; andan air supply conduit functionally connecting the fluid evaporator with the air pump, the air supply conduit having an outlet arranged to discharge forced air into the lower portion of the chamber;wherein when the fluid evaporator is in the operative position, air from the air pump can be ...

Concentrated Wastewater Slurry Thickening and Storage System and Stabilization Batch Treatment Plant

A wastewater concentrator a liquid evaporator assembly, a gas-liquid separator, an exhaust assembly, and a slurry thickening and storage system. The slurry thickening and storage system includes a slurry thickening tank fluidly connected to the gas-liquid separator and a thickened slurry storage tank fluidly connected to the slurry thickening tank. 139-. (canceled)40. A batch treatment and stabilization plant for treating and stabilizing slurry formed from concentrating a wastewater stream , the batch treatment and stabilization plant comprising:a central batch processing plant, the central batch processing plant including a slurry inlet, a slurry outlet, an additive, and a stabilizer.41. The batch treatment and stabilization plant of claim 40 , further comprising sulfate as one additive.42. The batch treatment and stabilization plant of claim 40 , further comprising Portland cement as one stabilizer.43. The batch treatment and stabilization plant of claim 40 , further comprising a plurality of slurry storage tanks that are operatively connected to the central batch processing plant.44. The batch treatment and stabilization plant of claim 43 , wherein each slurry storage tank in the plurality of storage tanks is fluidly connected to a wastewater concentrator.45. The batch treatment and stabilization plant of claim 44 , wherein at least one of the concentrators is operatively connected to a source of produced water from a natural gas well.46. The batch treatment and stabilization plant of claim 40 , further comprising a plurality of storage containers for storing slurry after being mixed with an additive or a stabilizer in the central batch plant. Field of the DisclosureThe present disclosure generally relates to systems and apparatuses for concentrating wastewater by separating and removing a water constituent from the wastewater and more specifically to wastewater concentrators having a concentrated slurry thickening and storage system and/or a stabilization batch ...

COMPACT WASTEWATER CONCENTRATOR AND CONTAMINANT SCRUBBER

A compact and portable liquid concentrator and contaminant scrubber includes a gas inlet, a gas exit and a flow corridor connecting the gas inlet and the gas exit, wherein the flow corridor includes a narrowed portion that accelerates the gas through the flow corridor. A liquid inlet injects liquid into the gas stream at a point prior to the narrowed portion so that the gas-liquid mixture is thoroughly mixed within the flow corridor, causing a portion of the liquid to be evaporated. A demister or fluid scrubber downstream of the narrowed portion removes entrained liquid droplets from the gas stream and re-circulates the removed liquid to the liquid inlet through a re-circulating circuit. A reagent may be mixed with the liquid to react with contaminants in the liquid. 120-. (canceled)21. A control system for a wastewater concentrator , the control system comprising:a controller operatively connected to a new liquid pump and to a re-circulated liquid pump, the controller metering the amounts and ratios of new liquid and re-circulated liquid delivered to a concentrator assembly of the wastewater concentrator by operating the new liquid pump and the re-circulated liquid pump; anda reagent pump operatively connected to the controller, the controller operating the reagent pump to supply reagent to the wastewater concentrator.22. The control system of claim 21 , wherein the controller operates the new liquid pump and the re-circulated liquid pump to maintain a ratio of new liquid to re-circulated liquid at a ratio of about 1:10.23. The control system of claim 21 , wherein the controller operates the reagent pump to supply between 150% and 600% of the reagent needed to sequester a desired amount of a chemical in the wastewater.24. The control system of claim 21 , wherein the reagent pump supplies reagent to a sequential mixing and settling tank located upstream of a new liquid inlet to the wastewater concentrator.25. The control system of claim 21 , wherein the controller ...

METHOD AND DEVICE FOR CONCENTRATING DISSOLVED SOLIDS IN FLOWBACK AND PRODUCED WATER FROM NATURAL GAS WELLS

A wastewater concentrator a liquid evaporator assembly, a gas-liquid separator, an exhaust assembly, and a flowback water concentrating system. The flowback water concentrating system includes a settling tank fluidly connected to the gas-liquid separator and a supernatant liquid concentration sensor for measuring a concentration of dissolved solids in the supernatant liquid in the settling tank. 113-. (canceled)14. A device for concentrating dissolved solids in flowback water from natural gas wells , the device comprising:a liquid evaporator assembly;a gas-liquid separator fluidly connected to the liquid evaporator assembly;an exhaust assembly fluidly connected to the gas-liquid separator;a settling tank fluidly connected to the gas-liquid separator; anda concentrated supernatant liquid sensor disposed in the settling tank for measuring a concentration of dissolved solids in the supernatant liquid in the settling tank.15. The device of claim 14 , further comprising a slurry concentration sensor in the settling tank for measuring a concentration level of suspended solids in the slurry in the settling tank.16. The device of claim 14 , wherein the settling tank further comprises a stirring rod.17. The device of claim 16 , further comprising a rake operatively attached to the stirring rod.18. The device of claim 17 , wherein the stirring rod rotates at between 1 RPM and 10 RPM.19. The device of claim 14 , wherein an inner surface of the settling tank comprises an inner epoxy liner.20. The device of claim 14 , wherein the inner epoxy liner is approximately 30 mil thick. This application claims the benefit of Provisional U.S. Patent Application No. 61/900,152, filed Nov. 5, 2013, the entirety of which is incorporated herein by reference.Field of the DisclosureThe disclosure generally relates to methods and devices for concentrating wastewater and more particularly to methods and devices for concentrating dissolved salts in flowback and produced water from natural gas ...

COMPACT WASTEWATER CONCENTRATOR USING WASTE HEAT

A compact and portable liquid concentrator includes a gas inlet, a gas exit and a flow corridor connecting the gas inlet and the gas exit, wherein the flow corridor includes a narrowed portion that accelerates the gas through the flow corridor. A liquid inlet injects liquid into the gas stream at a point prior to the narrowed portion so that the gas-liquid mixture is thoroughly mixed within the flow corridor, causing a portion of the liquid to be evaporated. A demister or fluid scrubber downstream of the narrowed portion removes entrained liquid droplets from the gas stream and re-circulates the removed liquid to the liquid inlet through a re-circulating circuit. Fresh liquid to be concentrated is also introduced into the re-circulating circuit at a rate sufficient to offset the amount of liquid evaporated in the flow corridor. 1. A liquid concentrator system , comprising: a gas inlet,', 'a gas outlet,', 'a mixing corridor disposed between the gas inlet and the gas outlet, the mixing corridor having a narrowed portion in which gas flow within the mixing corridor accelerates when traveling from the gas inlet to the gas outlet; and', 'a liquid inlet through which liquid to be concentrated is injected into the mixing corridor, the liquid inlet disposed in the mixing corridor between the gas inlet and the narrowed portion;, 'a concentrator section including;'} a demister gas flow passage coupled to the gas outlet of the concentrator section,', 'a liquid collector disposed in the demister gas flow passage to remove liquid from gas flowing in the demister gas flow passage, and', 'a reservoir that collects the liquid removed from the gas flowing in the demister gas flow passage by the liquid collector; and, 'a demister disposed downstream of the concentrator section, the demister including;'}a fan coupled to the demister to assist gas flow through the mixing corridor and the gas flow passage, the fan being connected to a variable frequency drive motor that operates to vary ...

Apparatus for Concentrating Wastewater and for Creating Brines

A liquid concentrator system includes a concentrator section having a gas inlet, a gas outlet, and a mixing corridor disposed between the gas inlet and the gas outlet. A liquid inlet is disposed in the mixing corridor between the gas inlet and a narrowed portion. A demister is disposed downstream of the concentrator section. The demister includes a liquid collector to remove liquid from gas flowing through the demister, and a reservoir that collects the removed liquid. A re-circulating circuit is disposed between reservoir and the mixing corridor to transport liquid within the reservoir to the mixing corridor, and a secondary re-circulating circuit includes a settling tank to separate saturated liquid and suspended solids. A custom brine mixing device is operatively coupled to the settling tank. 1. A liquid concentrator system , comprising:a concentrator section including;a gas inlet,a gas outlet,a mixing corridor disposed between the gas inlet and the gas outlet;a liquid inlet through which liquid to be concentrated is injected into the mixing corridor;a demister disposed downstream of the concentrator section, the demister including a demister gas flow passage coupled to the gas outlet of the concentrator section, a liquid collector disposed in the demister gas flow passage to remove liquid from gas flowing in the demister gas flow passage, and a reservoir that collects the liquid removed from the gas flowing in the demister gas flow passage by the liquid collector;a re-circulating circuit disposed between reservoir and the mixing corridor to transport liquid within the reservoir to the mixing corridor;a settling tank to separate saturated liquid and suspended solids; anda custom brine mixing device operatively coupled to the settling tank.2. The liquid concentrator system of claim 1 , wherein the custom brine mixing device includes a saturated liquid extraction port claim 1 , a saturated liquid valve operatively coupled to the saturated liquid extraction port ...

COMPACT WASTEWATER CONCENTRATOR AND POLLUTANT SCRUBBER

A compact and portable liquid concentrator includes a gas inlet, a gas exit and a flow corridor connecting the gas inlet and the gas exit, wherein the flow corridor includes a narrowed portion that accelerates the gas through the flow corridor. A liquid inlet injects liquid into the gas stream at a point prior to the narrowed portion so that the gas-liquid mixture is thoroughly mixed within the flow corridor, causing a portion of the liquid to be evaporated. A demister or fluid scrubber downstream of the narrowed portion removes entrained liquid droplets from the gas stream and re-circulates the removed liquid to the liquid inlet through a re-circulating circuit. Fresh liquid to be concentrated is also introduced into the re-circulating circuit at a rate sufficient to offset the amount of liquid evaporated in the flow corridor. 130-. (canceled)31. A wastewater concentrating and oxide of sulfur (SOx) reducing system , the system comprising:a gas inlet;a gas outlet;a concentrating section disposed between the gas inlet and the gas outlet, the concentrating section having a narrowed portion in which gas flow within the concentrating section accelerates;a liquid inlet through which wastewater is injected into the concentrating section, the liquid inlet being disposed in the concentrating section upstream of the narrowed portion;a demister disposed downstream of the narrowed portion, the demister removing entrained liquid droplets from the gas flow; andan alkaline agent storage tank for holding a supply of alkaline agent, the alkaline agent storage tank being connected to the concentrating section to inject alkaline agent into the concentrating section.32. The system of claim 31 , further comprising an alkaline agent pump connected to the alkaline agent storage tank.33. The system of claim 32 , wherein the alkaline agent storage tank is connected to the liquid inlet.34. The system of claim 32 , wherein the alkaline agent storage tank is connected to the concentrating ...

DESALINATION SYSTEM

A desalination system in the form of a submerged gas evaporator that includes a vessel, a gas delivery tube partially disposed within the vessel to deliver a gas into the vessel and a fluid inlet that provides a fluid to the vessel at a rate sufficient to maintain a controlled constant level of fluid within the vessel. During operation, gas introduced through the tube mixes with the fluid and the combined gas and fluid flow at a high rate with a high degree of turbulence, thereby promoting vigorous mixing and intimate contact between the gas and the fluid, which leads to a more efficient and complete evaporation. Additionally, vapor exiting the submerged gas evaporator is condensed in a condensing unit thus precipitating vapor into a liquid for removal. 110-. (canceled)11. A method of desalinating saltwater , the method comprising:(a) supplying saltwater to a submerged gas evaporator vessel;(b) supplying gas to the submerged gas evaporator vessel;(c) dispersing the gas into the saltwater below a surface of the saltwater;(d) agitating the saltwater with the dispersed gas to create bubbles of dispersed gas within the saltwater;(e) transferring heat and mass from the saltwater to the dispersed gas;(f) separating the dispersed gas from the saltwater;(g) supplying the separated dispersed gas to a condenser;(h) cooling the separated dispersed gas within the condenser, thereby causing desalinated water to condense; and(i) collecting the condensed desalinated water.12. The method of claim 11 , further comprising creating a continuous flow pattern around a weir disposed within the submerged gas evaporator vessel.13. The method of claim 12 , wherein the weir creates a confined volume between the weir and a gas inlet tube claim 12 , the continuous flow pattern flowing upward within the confined volume claim 12 , laterally outward over a first end of the weir claim 12 , downward outside of the weir and laterally inward under a second end of the weir.14. The method of claim 13 , ...

Compact wastewater concentrator using waste heat

A compact and portable liquid concentrator includes a gas inlet, a gas exit and a flow corridor connecting the gas inlet and the gas exit, wherein the flow corridor includes a narrowed portion that accelerates the gas through the flow corridor. A liquid inlet injects liquid into the gas stream at a point prior to the narrowed portion so that the gas-liquid mixture is thoroughly mixed within the flow corridor, causing a portion of the liquid to be evaporated. A demister or fluid scrubber downstream of the narrowed portion removes entrained liquid droplets from the gas stream and re-circulates the removed liquid to the liquid inlet through a re-circulating circuit. Fresh liquid to be concentrated is also introduced into the re-circulating circuit at a rate sufficient to offset the amount of liquid evaporated in the flow corridor.

PROCESSES FOR TREATMENT OF METAL-CONTAINING FLUIDS, RELATED APPARATUS, AND RELATED COMPOSITIONS

The disclosure relates generally to liquid concentrators, and more specifically to compact, portable, cost-effective wastewater concentrators that can be easily connected to and use sources of waste heat. The concentrators can be used to concentrate liquid wastewater streams including waste metals such as selenium. The liquid wastewater and heated gas for concentration of the same can be obtained from an air quality control system (AQCS) process for cleaning/discharging of flue gas from an electrical power generation unit (EGU). Resulting cementitious solid waste products formed from the concentrated liquid wastewater provide a stable solid matrix that limits, reduces, or prevents leaching of metals such as selenium from the solid waste products into the environment. 171-. (canceled).72. A process for concentrating wastewater comprising selenium with a heated gas , the process comprising:(a) combining the heated gas and a liquid flow of the wastewater to form a mixture thereof; and(b) directly transferring heat from the heated gas to the liquid of the mixture and chemically reducing the oxidation state of the selenium in the liquid wastewater with a reducing agent, thus heating and vaporizing a portion of the liquid in the mixture to yield a partially vaporized mixture comprising (i) a concentrated liquid wastewater comprising selenium from the liquid wastewater and in a more chemically reduced form relative to the selenium in the liquid wastewater, and (ii) a cooled gas comprising vaporized liquid from the liquid wastewater.73. The process of claim 72 , wherein:the heated gas comprises a reducing agent or a precursor thereof; andthe process further comprises absorbing at least a portion of the reducing agent or the precursor thereof from the heated gas into the liquid of the mixture.74. The process of claim 72 , further comprising feeding the reducing agent to the mixture separately from the heated gas and the liquid flow of the wastewater.75. The process of claim ...

APPARATUS AND METHOD FOR TREATING HYDROGEN SULFIDE AND AMMONIA IN WASTEWATER STREAMS

A process of removing contaminants and concentrating wastewater includes delivering wastewater from a source of wastewater to a hydrogen sulfide removal device, mixing an oxidant with the filtered wastewater in the hydrogen sulfide removal device to produce a hydrogen sulfide lean effluent, delivering the hydrogen sulfide lean effluent to a direct contact concentrator. and evaporating a portion of the hydrogen lean effluent in the direct contact evaporator to produce a slurry and an exhaust gas. 1. A process of removing contaminants and concentrating wastewater , the process comprising:delivering wastewater from a source of wastewater to a hydrogen sulfide removal device;mixing an oxidant with the filtered wastewater in the hydrogen sulfide removal device to produce a hydrogen sulfide lean effluent;delivering the hydrogen sulfide lean effluent to a direct contact concentrator; andevaporating a portion of the hydrogen lean effluent in the direct contact evaporator to produce a slurry and an exhaust gas.2. The process of claim 1 , further comprising:delivering the wastewater to a reverse osmosis system before delivering the wastewater to the hydrogen sulfide removal device; andfiltering the wastewater in the reverse osmosis system to produce a filtered wastewater and a permeate.3. The process of claim 1 , further comprising:delivering the exhaust gas to an ammonia scrubber; andmixing an acid with the exhaust gas to chemically react with ammonia in the exhaust gas to produce a saturated vapor and an ammonium sulfate.4. The process of claim 3 , wherein the acid is sulfuric acid.5. The process of claim 1 , wherein the oxidant is peroxide.6. The process of claim 1 , further comprising adding sodium hydroxide to the concentrator.7. The process of claim 1 , further comprising delivering the slurry to a solid/liquid separator to produce a supernatant liquid and a sludge.8. The process of claim 7 , further comprising delivering the supernatant liquid back to the concentrator ...

Apparatus for Concentrating Wastewater and for Creating Brines

A liquid concentrator system includes a concentrator section having a gas inlet, a gas outlet, and a mixing corridor disposed between the gas inlet and the gas outlet. A liquid inlet is disposed in the mixing corridor between the gas inlet and a narrowed portion. A demister is disposed downstream of the concentrator section. The demister includes a liquid collector to remove liquid from gas flowing through the demister, and a reservoir that collects the removed liquid. A re-circulating circuit is disposed between reservoir and the mixing corridor to transport liquid within the reservoir to the mixing corridor, and a secondary re-circulating circuit includes a settling tank to separate saturated liquid and suspended solids. A custom brine mixing device is operatively coupled to the settling tank. 2. The liquid concentrator system of claim 1 , wherein the custom brine mixing device includes a saturated liquid extraction port claim 1 , a saturated liquid valve operatively coupled to the saturated liquid extraction port claim 1 , a settled solids extraction port claim 1 , a settled solids valve operatively coupled to the settled solids extraction port claim 1 , and a controller operatively coupled to the saturated liquid valve and to the settled solids valve.3. The liquid concentrator system of claim 2 , wherein the custom brine mixing device includes a source of lubricant that is fluidly connected to a mixture line downstream of a point at which the saturated liquids and settled solids are mixed.4. The liquid concentrator system of claim 3 , wherein the controller is operatively coupled to a mixture weight sensor claim 3 , to a saturated liquid weight sensor claim 3 , and to a settled solids weight sensor.5. The liquid concentrator system of claim 1 , wherein the concentrator section includes an adjustable flow restriction disposed in the narrowed portion of the mixing corridor claim 1 , the flow restriction adjustable to alter gas flow through the mixing corridor.6. ...

Treatment of spent caustic refinery effluents

A method for treatment of caustic effluents, a spent caustic refinery effluent from a source (14) is supplied to a submerged combustion gas evaporator (10) in which hot combustion gas containing carbondioxide is injected into the caustic liquid to concentrate the liquid and convert a hydroxide constituent to a carbonate. Where the caustic effluent is from a petroleum refinery, oil in the waste liquid is separated from the aqueous constituent in an oil separator (20) before, during or after concentration.

Carboxypyridine sulphonic acid compounds

Compact wastewater concentrator and pollutant scrubber

Compact wastewater concentrator using waste heat

Process for the production of pyridine aldehydes

Condensation plume mitigation system for exhaust stacks

An exhaust gas plume mitigation process and system includes either mixing secondary heat into a moisture rich exhaust gas stream, or diverting a moisture rich exhaust gas stream into a primary exhaust stack having hot exhaust gases flowing therethrough. Moisture rich exhaust gas from a liquid concentrator may be diverted into a high temperature exhaust stack of an engine, a generator, or a flare. The high temperature exhaust gases from the engine, the generator, or the flare raise the temperature of the moisture rich exhaust gas from the concentrator. The high temperature exhaust gases from the engine, the generator, or the flare are also lower in moisture content, so that the moisture rich exhaust gas from the concentrator is diluted by the drier high temperature exhaust gas. As a result, the mixed gas is less likely to develop a moisture plume upon exit to the atmosphere.

Compact wastewater concentrator using waste heat

A compact and portable liquid concentrator includes a gas inlet, a gas exit and a flow corridor connecting the gas inlet and the gas exit, wherein the flow corridor includes a narrowed portion that accelerates the gas through the flow corridor. A liquid inlet injects liquid into the gas stream at a point prior to the narrowed portion so that the gas-liquid mixture is thoroughly mixed within the flow corridor, causing a portion of the liquid to be evaporated. A demister or fluid scrubber downstream of the narrowed portion removes entrained liquid droplets from the gas stream and re-circulates the removed liquid to the liquid inlet through a re-circulating circuit. Fresh liquid to be concentrated is also introduced into the re-circulating circuit at a rate sufficient to offset the amount of liquid evaporated in the flow corridor.

Compact wastewater concentrator using waste heat

A compact and portable liquid concentrator includes a gas inlet, a gas exit and a flow corridor connecting the gas inlet and the gas exit, wherein the flow corridor includes a narrowed portion that accelerates the gas through the flow corridor. A liquid inlet injects liquid into the gas stream at a point prior to the narrowed portion so that the gas-liquid mixture is thoroughly mixed within the flow corridor, causing a portion of the liquid to be evaporated. A demister or fluid scrubber downstream of the narrowed portion removes entrained liquid droplets from the gas stream and re-circulates the removed liquid to the liquid inlet through a re-circulating circuit. Fresh liquid to be concentrated is also introduced into the re-circulating circuit at a rate sufficient to offset the amount of liquid evaporated in the flow corridor.

Compact wastewater concentrator using waste heat

A compact and portable liquid concentrator includes a gas inlet, a gas exit and a flow corridor connecting the gas inlet and the gas exit, wherein the flow corridor includes a narrowed portion that accelerates the gas through the flow corridor. A liquid inlet injects liquid into the gas stream at a point prior to the narrowed portion so that the gas-liquid mixture is thoroughly mixed within the flow corridor, causing a portion of the liquid to be evaporated. A demister or fluid scrubber downstream of the narrowed portion removes entrained liquid droplets from the gas stream and re-circulates the removed liquid to the liquid inlet through a re-circulating circuit. Fresh liquid to be concentrated is also introduced into the re-circulating circuit at a rate sufficient to offset the amount of liquid evaporated in the flow corridor.

Compact wastewater concentrator using waste heat

A compact and portable liquid concentrator includes a gas inlet, a gas exit and a flow corridor connecting the gas inlet and the gas exit, wherein the flow corridor includes a narrowed portion that accelerates the gas through the flow corridor. A liquid inlet injects liquid into the gas stream at a point prior to the narrowed portion so that the gas-liquid mixture is thoroughly mixed within the flow corridor, causing a portion of the liquid to be evaporated. A demister or fluid scrubber downstream of the narrowed portion removes entrained liquid droplets from the gas stream and re-circulates the removed liquid to the liquid inlet through a re-circulating circuit. Fresh liquid to be concentrated is also introduced into the re-circulating circuit at a rate sufficient to offset the amount of liquid evaporated in the flow corridor.

A compact and portable liquid concentrator of wastewater and gas washing unit to remove contaminants

Компактний пересувний концентратор рідини містить газовпускний патрубок, газовипускний отвір і проточний канал, з'єднувальний газовпускний патрубок і газовипускний отвір, причому проточний канал містить звужену ділянку, яка збільшує швидкість протікання газу по проточному каналу. Через впускний патрубок рідини упорскують рідину в потік газу перед звуженою ділянкою так, щоб газорідинна суміш повністю перемішувалася в проточному каналі, викликаючи часткове випаровування рідини. Туманоуловлювач або газопромивний апарат за звуженою ділянкою видаляє з потоку газу віднесені ним крапельки рідини і повертає зібрану рідину у впускний патрубок рідини по рециркуляційному контуру. Свіжу рідину, що надійшла на концентрування, також подають в рециркуляційний контур із швидкістю, достатньо великою, щоб компенсувати кількість випаровуваної рідини в проточному каналі. The compact mobile fluid concentrator comprises a gas inlet, a gas outlet and a flow channel, a connecting gas inlet and a gas outlet, and the flow channel contains a narrowed portion that increases the rate of gas flow through the flow channel. Through the inlet pipe, the liquid is injected into the gas stream in front of the narrowed area so that the gas-liquid mixture is completely mixed in the flow channel, causing partial evaporation of the liquid. The fog pickup or gas washer in the narrowed area removes the droplets of liquid carried away by the gas stream and returns the collected liquid to the liquid inlet through the recirculation circuit. The fresh concentration fluid is also fed to a recirculation circuit at a speed large enough to compensate for the amount of evaporated liquid in the flow channel.

Compact wastewater concentrator using waste heat

A compact and portable liquid concentrator includes a gas inlet, a gas exit and a flow corridor connecting the gas inlet and the gas exit, wherein the flow corridor includes a narrowed portion that accelerates the gas through the flow corridor. A liquid inlet injects liquid into the gas stream at a point prior to the narrowed portion so that the gas-liquid mixture is thoroughly mixed within the flow corridor, causing a portion of the liquid to be evaporated. A demister or fluid scrubber downstream of the narrowed portion removes entrained liquid droplets from the gas stream and re-circulates the removed liquid to the liquid inlet through a re-circulating circuit. Fresh liquid to be concentrated is also introduced into the re-circulating circuit at a rate sufficient to offset the amount of liquid evaporated in the flow corridor.

Sulphanilamido-aminopyridines and process for producing the same

Treatment of spent caustic refinery effluents

A method for treatment of caustic effluents, a spent caustic refinery effluent from a source (14) is supplied to a submerged combustion gas evaporator (10) in which hot combustion gas containing carbondioxide is injected into the caustic liquid to concentrate the liquid and convert a hydroxide constituent to a carbonate. Where the caustic effluent is from a petroleum refinery, oil in the waste liquid is separated from the aqueous constituent in an oil separator (20) before, during or after concentration.

Compact wastewater concentrator and contaminant scrubber

A compact and portable liquid concentrator and contaminant scrubber includes a gas inlet, a gas exit and a flow corridor connecting the gas inlet and the gas exit, wherein the flow corridor includes a narrowed portion that accelerates the gas through the flow corridor. A liquid inlet injects liquid into the gas stream at a point prior to the narrowed portion so that the gas-liquid mixture is thoroughly mixed within the flow corridor, causing a portion of the liquid to be evaporated. A demister or fluid scrubber downstream of the narrowed portion removes entrained liquid droplets from the gas stream and re-circulates the removed liquid to the liquid inlet through a re-circulating circuit. A reagent may be mixed with the liquid to react with contaminants in the liquid.

Preparation of 3-hydroxypyridine

Compact wastewater concentrator and pollutant scrubber

A compact and portable liquid concentrator includes a gas inlet, a gas exit and a flow corridor connecting the gas inlet and the gas exit, wherein the flow corridor includes a narrowed portion that accelerates the gas through the flow corridor. A liquid inlet injects liquid into the gas stream at a point prior to the narrowed portion so that the gas-liquid mixture is thoroughly mixed within the flow corridor, causing a portion of the liquid to be evaporated. A demister or fluid scrubber downstream of the narrowed portion removes entrained liquid droplets from the gas stream and re-circulates the removed liquid to the liquid inlet through a re-circulating circuit. Fresh liquid to be concentrated is also introduced into the re-circulating circuit at a rate sufficient to offset the amount of liquid evaporated in the flow corridor.

Process for producing cyanopyridine carboxamide

Compact waste water concentrator and contaminant scrubber

A compact and portable liquid concentrator and contaminant scrubber includes a gas inlet, a gas exit and a flow corridor connecting the gas inlet and the gas exit, wherein the flow corridor includes a narrowed portion that accelerates the gas through the flow corridor. A liquid inlet injects liquid into the gas stream at a point prior to the narrowed portion so that the gas-liquid mixture is thoroughly mixed within the flow corridor, causing a portion of the liquid to be evaporated. A demister or fluid scrubber downstream of the narrowed portion removes entrained liquid droplets from the gas stream and re-circulates the removed liquid to the liquid inlet through a re-circulating circuit. A reagent may be mixed with the liquid to react with contaminants in the liquid. Fig. 3 134 CONTROLLER 313 312 315 1 196 14193 177 175 172 317 122

Compact wastewater concentrator using waste heat

A compact and portable liquid concentrator includes a gas inlet, a gas exit and a flow corridor connecting the gas inlet and the gas exit, wherein the flow corridor includes a narrowed portion that accelerates the gas through the flow corridor. A liquid inlet injects liquid into the gas stream at a point prior to the narrowed portion so that the gas-liquid mixture is thoroughly mixed within the flow corridor, causing a portion of the liquid to be evaporated. A demister or fluid scrubber downstream of the narrowed portion removes entrained liquid droplets from the gas stream and re-circulates the removed liquid to the liquid inlet through a re-circulating circuit. Fresh liquid to be concentrated is also introduced into the re-circulating circuit at a rate sufficient to offset the amount of liquid evaporated in the flow corridor.

Compact wastewater concentrator and pollutant scrubber

A compact and portable liquid concentrator includes a gas inlet, a gas exit and a flow corridor connecting the gas inlet and the gas exit, wherein the flow corridor includes a narrowed portion that accelerates the gas through the flow corridor. A liquid inlet injects liquid into the gas stream at a point prior to the narrowed portion so that the gas-liquid mixture is thoroughly mixed within the flow corridor, causing a portion of the liquid to be evaporated. A demister or fluid scrubber downstream of the narrowed portion removes entrained liquid droplets from the gas stream and re-circulates the removed liquid to the liquid inlet through a re-circulating circuit. Fresh liquid to be concentrated is also introduced into the re-circulating circuit at a rate sufficient to offset the amount of liquid evaporated in the flow corridor.

Liquid concentrator

A liquid concentrator having an evaporator assembly and a cyclonic separator includes features designed to improve the performance of the liquid concentrator. A settling chamber is separated from a sump of the cyclonic separator. A liquid inlet opening into a mixing chamber of the evaporator injects wastewater at low pressures. Features to aid in the cleaning of the liquid concentrator include easy open doors and clean water injection ports for cleaning interior portions of the liquid concentrator. In one feature a settling tank is disposed below the cyclonic separator and has a width that is larger than the width of the cyclonic separator. In another variation, the cyclonic separator has a tubular body with an interior that is substantially unobstructed between an inlet from the evaporator assembly and an exhaust outlet. In yet another variation, the cyclonic separator has an upper chamber that is separated from a lower chamber.

Treatment of spent caustic refinery effluents

Compact wastewater concentrator using waste heat

A compact and portable liquid concentrator includes a gas inlet, a gas exit and a flow corridor connecting the gas inlet and the gas exit, wherein the flow corridor includes a narrowed portion that accelerates the gas through the flow corridor. A liquid inlet injects liquid into the gas stream at a point prior to the narrowed portion so that the gas-liquid mixture is thoroughly mixed within the flow corridor, causing a portion of the liquid to be evaporated. A demister or fluid scrubber downstream of the narrowed portion removes entrained liquid droplets from the gas stream and re-circulates the removed liquid to the liquid inlet through a re-circulating circuit. Fresh liquid to be concentrated is also introduced into the re-circulating circuit at a rate sufficient to offset the amount of liquid evaporated in the flow corridor.

Compact wastewater concentrator and contaminant scrubber

A compact and portable liquid concentrator and contaminant scrubber includes a gas inlet, a gas exit and a flow corridor connecting the gas inlet and the gas exit, wherein the flow corridor includes a narrowed portion that accelerates the gas through the flow corridor. A liquid inlet injects liquid into the gas stream at a point prior to the narrowed portion so that the gas-liquid mixture is thoroughly mixed within the flow corridor, causing a portion of the liquid to be evaporated. A demister or fluid scrubber downstream of the narrowed portion removes entrained liquid droplets from the gas stream and re-circulates the removed liquid to the liquid inlet through a re-circulating circuit. A reagent may be mixed with the liquid to react with contaminants in the liquid.

DEVICE FOR BENDING DIVES

Wastewater processing systems for evaporating water with immerged flue gas inlet

Methods, systems, and/or apparatuses (5) for treating wastewater produced at a thermoelectric power plant, other industrial plants, and/or other industrial sources are disclosed. The wastewater (16) is directed through a wastewater concentrator (5) including a direct contact adiabatic concentration system. A stream of hot feed gases is directed (104) through the wastewater concentrator. The wastewater concentrator mixes the hot feed gases directly with the wastewater and evaporates water vapor from the wastewater. The wastewater concentrator separates (A) the water vapor from remaining concentrated wastewater. A contained air-water interface liquid evaporator may be arranged to pre-process the wastewater before being treated by the wastewater concentrator.

Processes for treatment of metal-containing fluids, related apparatus, and related compositions

The disclosure relates generally to liquid concentrators, and more specifically to compact, portable, cost-effective wastewater concentrators that can be easily connected to and use sources of waste heat. The concentrators can be used to concentrate liquid wastewater streams including waste metals such as selenium. The liquid wastewater and heated gas for concentration of the same can be obtained from an air quality control system (AQCS) process for cleaning/discharging of flue gas from an electrical power generation unit (EGU). Resulting cementitious solid waste products formed from the concentrated liquid wastewater provide a stable solid matrix that limits, reduces, or prevents leaching of metals such as selenium from the solid waste products into the environment.

Treatment of spent caustic refinery effluents

A method for treatment of caustic effluents, a spent caustic refinery effluent from a source (14) is supplied to a submerged combustion gas evaporator (10) in which hot combustion gas containing carbondioxide is injected into the caustic liquid to concentrate the liquid and convert a hydroxide constituent to a carbonate. Where the caustic effluent is from a petroleum refinery, oil in the waste liquid is separated from the aqueous constituent in an oil separator (20) before, during or after concentration.

Portable compact wastewater concentrator

A compact and portable liquid concentrator includes a gas inlet, a gas exit and a flow corridor connecting the gas inlet and the gas exit, wherein the flow corridor includes a narrowed portion that accelerates the gas through the flow corridor. A liquid inlet injects liquid into the gas stream at a point prior to the narrowed portion so that the gas-liquid mixture is thoroughly mixed within the flow corridor, causing a portion of the liquid to be evaporated. A demister or fluid scrubber downstream of the narrowed portion removes entrained liquid droplets from the gas stream and re-circulates the removed liquid to the liquid inlet through a re-circulating circuit. The compact and portable liquid concentrator is mountable on a truck bed or skid for easy transportation to remote sites.

Compact wastewater concentrator and contaminant scrubber

A compact and portable liquid concentrator and contaminant scrubber includes a gas inlet, a gas exit and a flow corridor connecting the gas inlet and the gas exit, wherein the flow corridor includes a narrowed portion that accelerates the gas through the flow corridor. A liquid inlet injects liquid into the gas stream at a point prior to the narrowed portion so that the gas-liquid mixture is thoroughly mixed within the flow corridor, causing a portion of the liquid to be evaporated. A demister or fluid scrubber downstream of the narrowed portion removes entrained liquid droplets from the gas stream and re-circulates the removed liquid to the liquid inlet through a re-circulating circuit. A reagent may be mixed with the liquid to react with contaminants in the liquid.

Wastewater processing systems for power plants and other industrial sources

Methods, systems, and/or apparatuses for treating wastewater produced at a thermoelectric power plant, other industrial plants, and/or other industrial sources are disclosed. The wastewater is directed through a wastewater concentrator including a direct contact adiabatic concentration system. A stream of hot feed gases is directed through the wastewater concentrator. The wastewater concentrator mixes the hot feed gases directly with the wastewater and evaporates water vapor from the wastewater. The wastewater concentrator separates the water vapor from remaining concentrated wastewater. A contained air-water interface liquid evaporator may be arranged to pre-process the wastewater before being treated by the wastewater concentrator.

Compact wastewater concentrator using waste heat

A compact and portable liquid concentrator includes a gas inlet, a gas exit and a flow corridor connecting the gas inlet and the gas exit, wherein the flow corridor includes a narrowed portion that accelerates the gas through the flow corridor. A liquid inlet injects liquid into the gas stream at a point prior to the narrowed portion so that the gas-liquid mixture is thoroughly mixed within the flow corridor, causing a portion of the liquid to be evaporated. A demister or fluid scrubber downstream of the narrowed portion removes entrained liquid droplets from the gas stream and re-circulates the removed liquid to the liquid inlet through a re-circulating circuit. Fresh liquid to be concentrated is also introduced into the re-circulating circuit at a rate sufficient to offset the amount of liquid evaporated in the flow corridor.

Air stripper

An air stripper includes a vessel, a gas delivery tube to deliver a gas into the vessel and a contaminated liquid inlet that provides a contaminated liquid to the vessel at a rate sufficient to maintain a controlled constant level of process fluid within the vessel. A weir is disposed within the vessel adjacent the gas delivery tube to form a first fluid circulation path between a first weir end and a wall of the vessel and a second fluid circulation path between a second weir end and an upper end of the vessel. During operation, gas introduced through the tube mixes with the process fluid and the combined gas and fluid flow at a high rate with a high degree of turbulence along the first and second circulation paths defined around the weir, thereby promoting vigorous mixing and intimate contact between the gas and the process fluid.

Air stripper

An air stripper in the form of an submerged gas evaporator or a submerged gas reactor that includes a vessel, a gas delivery tube partially disposed within the vessel to deliver a gas into the vessel and a contaminated liquid inlet that provides a contaminated liquid to the vessel at a rate sufficient to maintain a controlled constant level of process fluid within the vessel. A weir is disposed within the vessel adjacent the gas delivery tube to form a first fluid circulation path between a first weir end and a wall of the vessel and a second fluid circulation path between a second weir end and an upper end of the vessel. During operation, gas introduced through the tube mixes with the process fluid and the combined gas and fluid flow at a high rate with a high degree of turbulence along the first and second circulation paths defined around the weir, thereby promoting vigorous mixing and intimate contact between the gas and the process fluid. This turbulent flow develops a significant amount of interfacial surface area between the gas and the process fluid resulting in a reduction of the required residence time of the gas within the process fluid to achieve thermal equilibrium and/or to drive chemical reactions to completion, all of which leads to a more efficient and complete evaporation, chemical reaction, or combined evaporation and chemical reaction process.

Compact wastewater concentrator and pollutant scrubber

Abstract A compact and portable liquid concentrator (10) includes a gas inlet (20), a gas exit (22) and a flow corridor (24) connecting the gas inlet and the gas exit, wherein the flow corridor includes a narrowed portion (26) that accelerates the gas through the flow corridor. A liquid inlet (30) injects liquid into the gas stream at a point prior to the narrowed portion so that the gas-liquid mixture is thoroughly mixed within the flow corridor, causing a portion of the liquid to be evaporated. A demister (34) or fluid scrubber downstream of the narrowed portion removes entrained liquid droplets from the gas stream and re-circulates the removed liquid to the liquid inlet through a re-circulating circuit (42). Fresh liquid to be concentrated is also introduced into the re-circulating circuit at a rate sufficient to offset the amount of liquid evaporated in the flow corridor. Figure 1 to L va La-4 ci, Co L 4 Cl c

Fixed, spatially swiveling continuous conveyor

Treatment of spent caustic refinery effluents

In the methods for treatment of caustic effluents described in the specification, a spent caustic refinery effluent is supplied to a submerged combustion gas evaporator in which hot combustion gas containing carbon dioxide is injected into the caustic liquid to concentrate the liquid and convert a hydroxide constituent to a carbonate. Where the caustic effluent is from a petroleum refinery, oil in the waste liquid is separated from the aqueous constituent before, during or after concentration.

Cooling tower

A cooling tower includes an evaporator vessel, a gas delivery tube partially disposed within the evaporator vessel to deliver a gas into the evaporator vessel and a water inlet that provides water to the evaporator vessel at a rate sufficient to maintain a controlled constant level of water within the evaporator vessel. A weir is disposed within the evaporator vessel adjacent the gas delivery tube to form a first fluid circulation path between a first weir end and a wall of the evaporator vessel and a second fluid circulation path between a second weir end and an upper end of the evaporator vessel. During operation, gas introduced through the tube mixes with the water and the combined gas and fluid flow at a high rate with a high degree of 'turbulence along the first and second circulation paths defined around the weir, thereby promoting vigorous mixing and intimate contact between the gas and the water. This turbulent flow develops a significant amount of interfacial surface area between the gas and the water which leads to a more efficient and complete evaporation.

TREATMENT OF CONSUMED REFINERY CAUSTIC EFFLUENTS

1.- Un método para tratar efluentes causticos consumidos que comprende:suministrar un efluente caustico consumido a un evaporador de gas de combustion sumergido; ysuministrar gas de combustion al evaporador de gas de combustion sumergido en una temperatura y cantidad suficientemente alta para evaporar agua y constituyentes volatiles en el efluente caustico consumido y concentrar un constituyente del efluente caustico consumido.2.- Un método de acuerdo con la reivindicacion 1 que incluye oxidar térmicamente constituyentes vaporizados removidos del efluente caustico consumido para eliminar olores y otros materiales volatiles de constituyentes gaseosos liberados a la atmosfera. 1. A method for treating consumed caustic effluents comprising: supplying a caustic effluent consumed to a submerged combustion gas evaporator; and supply combustion gas to the combustion gas evaporator submerged in a temperature and quantity sufficiently high to evaporate water and volatile constituents in the caustic effluent consumed and concentrate a constituent of the caustic effluent consumed. 2. A method according to claim 1 which it includes thermally oxidizing vaporized constituents removed from the caustic effluent consumed to eliminate odors and other volatile materials from gaseous constituents released into the atmosphere.

Compact Wastewater Concentrator and Contaminant Scrubber

A compact and portable liquid concentrator and contaminant scrubber includes a gas inlet, a gas exit and a flow corridor connecting the gas inlet and the gas exit, wherein the flow corridor includes a narrowed portion that accelerates the gas through the flow corridor. A liquid inlet injects liquid into the gas stream at a point prior to the narrowed portion so that the gas-liquid mixture is thoroughly mixed within the flow corridor, causing a portion of the liquid to be evaporated. A demister or fluid scrubber downstream of the narrowed portion removes entrained liquid droplets from the gas stream and re-circulates the removed liquid to the liquid inlet through a re-circulating circuit. A reagent may be mixed with the liquid to react with contaminants in the liquid.

Wastewater processing systems for power plants and other industrial sources

Methods, systems, and/or apparatuses for treating wastewater produced at a thermoelectric power plant, other industrial plants, and/or other industrial sources are disclosed. The wastewater is directed through a wastewater concentrator including a direct contact adiabatic concentration system. A stream of hot feed gases is directed through the wastewater concentrator. The wastewater concentrator mixes the hot feed gases directly with the wastewater and evaporates water vapor from the wastewater. The wastewater concentrator separates the water vapor from remaining concentrated wastewater. A contained air-water interface liquid evaporator may be arranged to pre-process the wastewater before being treated by the wastewater concentrator.

Concentrated wastewater slurry thickening and storage system and stabilization batch treatment plant

A wastewater concentrator a liquid evaporator assembly, a gas-liquid separator, an exhaust assembly, and a slurry thickening and storage system. The slurry thickening and storage system includes a slurry thickening tank fluidly connected to the gas-liquid separator and a thickened slurry storage tank fluidly connected to the slurry thickening tank.

Processes for production of pyridine 3-sulphonic acid and its salts

Streifband zum Versenden von Drucksachen

Processes for the production of pyridine-3-sulfonic acid and its salts

Sistema de desalinizacion

LA PRESENTE INVENCIÓN SE REFIERE A UN SISTEMA DE DESALINIACIÓN EN LA FORMA DE UN REACTOR DE GAS SUMERGIDO QUE INCLUYE UN RECIPIENTE DE EVAPORACIÓN. DICHO RECIPIENTE COMPRENDE UN LÍQUIDO QUE CIRCULA POR EL SISTEMA, UNA CAÑERÍA DE VAPOR QUE PERMITE LA EVAPORACIÓN Y UN CONDENSADOR QUE RECOLECTA EL LÍQUIDO CONDENSADO EN UN SEGUNDO RECIPIENTE. ESTA INVENCIÓN ES ÚTIL EN LA DESALINIZACIÓN DE AGUA DE MAR Y AGUA SALINA.

Production of 2-aminopyrimidine

Vorrichtung zur loesbaren halterung der schale von elektrischen nurglasleuchten

Therapeutic 7-substituted dialkylxanthines and process of preparing same

Verfahren zur Herstellung einer salzartigen Verbindung eines Dialkylxanthins

Nicotinic acid amide and process for preparing same

Maschine zum einbau von sand oder schotter zwischen unterbau und gleis und verfahren zum umbau des oberbaues eines bahnkörpers

Medicinal monoazo compounds

Vorrichtung zur lösbaren Halterung der Schale von elektrischen Nurglasleuchten

Mekanisme til loesbar fastgoerelse af kuplen af en eletkrisk kuppellampe

Improvements in or relating to holders for detachable mounting of glass bowl electric lamps

Mekanisme til loesbar fastgoerelse af kuplen af en elektrisk kuppellampe

Wastewater processing systems for power plants and other industrial sources

Methods, systems, and/or apparatuses for treating wastewater produced at a thermoelectric power plant, other industrial plants, and/or other industrial sources are disclosed. The wastewater is directed through a wastewater concentrator including a direct contact adiabatic concentration system. A stream of hot feed gases is directed through the wastewater concentrator. The wastewater concentrator mixes the hot feed gases directly with the wastewater and evaporates water vapor from the wastewater. The wastewater concentrator separates the water vapor from remaining concentrated wastewater. A contained air-water interface liquid evaporator may be arranged to pre-process the wastewater before being treated by the wastewater concentrator.

Fluid scrubber

A fluid scrubber in the form of a. submerged gas reactor includes a reaction vessel, a gas delivery tube partially disposed within the reaction vessel to deliver a gas into the reaction vessel and a scrubbing liquid inlet that provides a scrubbing liquid to the reaction vessel at a rate sufficient to maintain a controlled constant level of fluid within the reaction vessel. A weir is disposed within the reaction vessel adjacent the gas delivery tube to form a first fluid circulation path between a first weir end and a wall of the reaction vessel and a second fluid circulation path between a second weir end and an upper end of the reaction vessel. During operation, gas introduced through the tube mixes with the scrubbing liquid and the combined gas and liquid flow at a high rate with a high degree of turbulence along the first and second circulation paths defined around the weir, thereby promoting vigorous mixing and intimate contact between the gas and the scrubbing liquid. This turbulent flow develops a significant amount of interfacial surface area between the gas and the scrubbing liquid resulting in a reduction of the required residence time of the gas within the scrubbing liquid to achieve thermal equilibrium and/or to drive chemical reactions to completion, all of which leads to a more efficient and complete evaporation, chemical reaction, or combined evaporation and chemical reaction process.

Methods of reducing greenhouse gases in landfills and coal mines

A method of reducing greenhouse gases while simultaneously generating carbon credits includes mitigating greenhouse gases at unregulated landfill sites or mitigating greenhouse gases at regulated landfill sites in excess of the required mitigation activities, obtaining carbon credits in an amount created by the mitigation efforts and selling or using the carbon credits in an open market to, for example, offset the costs of the mitigation efforts or to fund or support other greenhouse gas emission activities.

Cyanopyridine, pyridine carboxamide and cyanopyridine carboxamide compounds and processes of producing the same

Leachate Treatment System

In the representative leachate treatment system disclosed in the specification, leachate (17) is supplied to a submerged combustion gas evaporator (10) having a downwardly-directed central burner supplying combustion gases through a downcomer to a combustion gas distributor in an evaporation zone. A conical baffle beneath the gas distributor separates the evaporation zone from a quiescent settling zone in a conical bottom of the distributor from which leachate concentrate and sludge are removed. The leachate (173 supplied to the evaporator (10) is preheated (16) by exhaust gases (30) from the evaporator (10) and combustion air (21) supplied to the burner is preheated (25) by leachate concentrate and sludge (18) removed from the evaporator (10). Landfill gases (I l) may be used to fuel the burner and the sludge (18) may be further concentrated (20) and liquid from the concentrator (20) returned to the evaporator (21).