Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год

Применить Всего найдено 14. Отображено 14.
25-05-2011 дата публикации

Leakage loss detection method combining leakage loss recording instrument with district metering areas (DMA)

Номер: CN0102072407A
Принадлежит:

The invention belongs to the field of leakage loss detection of a pipe network, and particularly relates to a leakage loss detection method combining district metering areas (DMAs) with a leakage loss recording instrument for an urban water supply pipe network. A water supply pipe network is partitioned into a plurality of DMAs, and the inlet of each DMA is provided with a flow meter for continuously monitoring the minimum night flow of the DMAs. When flow data indicates possible leakage loss of a DMA, the leakage loss recording instrument is used for monitoring as well as checking leakage loss and positioning a leakage loss point according to a signal. By the leakage loss detection method, the advantages of DMA partitioned monitoring and leakage loss recording instrument monitoring are brought into full play, leakage loss can be found in time and a leakage loss point is positioned quickly. By the method, the problems of high data acquisition workload, slow response and the like caused ...

Подробнее
06-01-2010 дата публикации

Method for adding a denitriding sequencing batch reactor activated sludge reaction carbon source

Номер: CN0101618909A
Принадлежит:

The invention relates to an optimal carbon source supplement real time control system used in a sequencing batch reactor activated sludge process for denitriding nitrogen-containing wastewater with a low C/N ratio. In the conventional sequencing anaerobic-aerobic batch reactor activated sludge process, the automatic control system uses an oxidation-reduction potential (ORP), a pH value and a DO curve slope variation value as control parameters and particularly adopts technology for automatically controlling optimal denitrification external carbon source addition at an anaerobic (aerobic) stage. The aeration time is controlled in the aerobic stage of the reaction and the addition amount of external nutrients is automatically controlled in the anaerobic stage of the reaction to optimize the system. The system can automatically adjust the hydraulic retention time in reaction processes according to the treatment conditions of the system such as inflowing water quality, a nitrification degree ...

Подробнее
11-05-2011 дата публикации

In situ test platform for testing ultraviolet intensity distribution in ultraviolet sterilizer

Номер: CN0102052966A
Принадлежит:

The invention relates to an in situ test platform for testing ultraviolet intensity distribution in an ultraviolet sterilizer. The ultraviolet sterilizer comprises a cavity, a sleeve and an ultraviolet light tube. The in situ test platform provided by the invention is characterized by comprising a platform frame body, wherein the platform frame body is provided with a movable guide rail which can move in horizontal and vertical directions, the moving end of the movable guide rail is fixed with an ultraviolet intensity test probe; and the cavity of the ultraviolet sterilizer is fixedly connected onto the platform frame body, and the top of the cavity is provided with a test hole. The ultraviolet sterilizer is provided with a reference probe used for detecting variation of the ultraviolet intensity output by the ultraviolet light tube; and the test probe and the reference probe are all electrically connected with a recording and displaying device. The invention has the advantages that accuracy ...

Подробнее
22-09-2010 дата публикации

Process for effectively treating organophosphorus pesticide wastewater

Номер: CN0101838075A
Принадлежит:

The invention relates to a process for effectively treating organophosphorus pesticide wastewater, which comprises a potassium permanganate and ozone mixing and contacting reaction cavity and an ozone/ultraviolet joint treatment reaction cavity. When the organophosphorus pesticide wastewater flows through the potassium permanganate and ozone mixing and contacting reaction cavity, off-gas ozone in the subsequent treatment process is introduced into the pesticide wastewater and can be combined with potassium permanganate to pretreat the pesticide wastewater. The pretreated wastewater is lifted by a water pump and then is jetted into the ozone/ultraviolet joint treatment reaction cavity from an inclined upper position by forming a 15-degree angle with the horizontal plane. In the ozone/ultraviolet joint treatment reaction cavity, the ozone can generate strong-oxidability hydroxyl free radicals under the radiation of ultraviolet to quickly oxidize organophosphorus pesticide in the pesticide ...

Подробнее
13-06-2012 дата публикации

Sequencing batch reactor (SBR) nitrosation-denitrosation implementation method at low temperature by controlling accumulation of free ammonia

Номер: CN0102001750B
Принадлежит:

The invention discloses a sequencing batch activated sludge reactor nitrosation-denitrosation control method at low temperature. Based on the traditional sequencing anoxic/aerobic batch activated sludge process, the method of the invention adopts pH, oxidation reduction potential (ORP) and dissolved oxygen (DO) as real-time monitoring parameters to establish an automatic control system. Under thecondition of 10 DEG C-18 DEG C, by controlling the concentration of the free ammonia (FA) in a reactor system, the oxidation of nitrite is inhibited; or the aeration time is optimally controlled according to an ammonia valley point on a real-time pH curve, thereby realizing nitrosation-denitrosation treatment of high-concentration ammonia nitrogen wastewater. The nitrosation rate of the method can reach 80%, and the removal rates of TN, NH3-N and COD respectively reach higher than 95%, 99% and 90%.

Подробнее
16-02-2011 дата публикации

Method for realizing SBR nitrosation-denitrosation at low temperature by optimally controlling aeration time

Номер: CN0101973671A
Принадлежит:

The invention discloses a control method for realizing nitrosation-denitrosation of ammonia nitrogen wastewater at a low temperature by a sequencing batch reactor (SBR) method. Based on the conventional facultative anaerobic-aerobic intermittent activated sludge method, pH, oxidation-reduction potential (ORP) and dissolved oxygen (DO) are used as real-time monitoring parameters to establish an automatic control system in the method. The oxidation of nitrite is suppressed by controlling concentration of free ammonia (FA) in a reactor system at the temperature of between 10 and 18 DEG C, or the aeration time is optimally controlled according to an ammonia valley point on a pH real-time curve, so that high-concentration ammonia nitrogen wastewater is treated by nitrosation-denitrosation. By the method, the nitrosation rate can reach 80 percent, and the removal rates of TN, NH3-N and chemical oxygen demand (COD) reach over 95 percent, 99 percent and 90 percent respectively.

Подробнее
13-06-2012 дата публикации

Method for realizing SBR nitrosation-denitrosation at low temperature by optimally controlling aeration time

Номер: CN0101973671B
Принадлежит:

The invention discloses a control method for realizing nitrosation-denitrosation of ammonia nitrogen wastewater at a low temperature by a sequencing batch reactor (SBR) method. Based on the conventional facultative anaerobic-aerobic intermittent activated sludge method, pH, oxidation-reduction potential (ORP) and dissolved oxygen (DO) are used as real-time monitoring parameters to establish an automatic control system in the method. The oxidation of nitrite is suppressed by controlling concentration of free ammonia (FA) in a reactor system at the temperature of between 10 and 18 DEG C, or theaeration time is optimally controlled according to an ammonia valley point on a pH real-time curve, so that high-concentration ammonia nitrogen wastewater is treated by nitrosation-denitrosation. By the method, the nitrosation rate can reach 80 percent, and the removal rates of TN, NH3-N and chemical oxygen demand (COD) reach over 95 percent, 99 percent and 90 percent respectively.

Подробнее
03-08-2011 дата публикации

Ultraviolet-photochemical compound water purifying process and device capable of realizing synchronous cleaning

Номер: CN0102139935A
Принадлежит:

The invention relates to an ultraviolet-photochemical water treatment process capable of realizing synchronous cleaning with economy, high efficiency and simple operation and a reaction device. The process comprises the following steps of: irradiating the air to generate ozone by utilizing an ultraviolet lamp with the dominant wavelength of 254nm and the secondary wavelength of 185nm (10-15%), forming an air water mixture by virtue of a jet device, enhancing free radicals of ozone by virtue of a high-strength magnetic field, introducing the mixture into a reactor, carrying out a photochemical free radical chain reaction by synergy of two ultraviolet beams with different wavelengths, introducing tail ozone into a water collecting tank by utilizing the air pressure by virtue of a top pipeline, and carrying out ozone oxidation and ultraviolet/ozone photooxidation multi-stage treatment to achieve the aims of inactivating pathogenic bacteria and removing micro pollutants, wherein the air water ...

Подробнее
23-05-2012 дата публикации

In situ test platform for testing ultraviolet intensity distribution in ultraviolet sterilizer

Номер: CN0102052966B
Принадлежит:

The invention relates to an in situ test platform for testing ultraviolet intensity distribution in an ultraviolet sterilizer. The ultraviolet sterilizer comprises a cavity, a sleeve and an ultraviolet light tube. The in situ test platform provided by the invention is characterized by comprising a platform frame body, wherein the platform frame body is provided with a movable guide rail which canmove in horizontal and vertical directions, the moving end of the movable guide rail is fixed with an ultraviolet intensity test probe; and the cavity of the ultraviolet sterilizer is fixedly connected onto the platform frame body, and the top of the cavity is provided with a test hole. The ultraviolet sterilizer is provided with a reference probe used for detecting variation of the ultraviolet intensity output by the ultraviolet light tube; and the test probe and the reference probe are all electrically connected with a recording and displaying device. The invention has the advantages that accuracy ...

Подробнее
18-08-2010 дата публикации

Scale advanced treatment method for livestock and poultry farming waste water

Номер: CN0101805093A
Принадлежит:

The invention discloses a scale advanced treatment method for livestock and poultry farming waste water. The method of the invention comprises the following steps: (1) adding acid to the livestock and poultry farming waste water after biological treatment, and regulating the pH value of the waste water to be less than or equal to 5.0; (2) adding H2O2 and soluble ferrite to the waste water to carry out oxidation reaction, wherein the mol ratio of the H2O2 to the Fe<2+> in the soluble ferrite is between 1:1 to 2:1; and (3) after carrying out reaction for not less than 10 minutes, adding alkali to reaction liquid, regulating the pH of the reaction liquid to be greater than or equal to 6.0, carrying out flocculating and depositing, and then discharging deposit and waste water according with the discharge standard. By controlling the pH value of the reaction system, the adding proportion of the H2O2 to the FeSO4, and the running time, the invention achieves the treatment effect and optimization ...

Подробнее
06-04-2011 дата публикации

Sequencing batch reactor (SBR) nitrosation-denitrosation implementation method at low temperature by controlling accumulation of free ammonia

Номер: CN0102001750A
Принадлежит:

The invention discloses a sequencing batch activated sludge reactor nitrosation-denitrosation control method at low temperature. Based on the traditional sequencing anoxic/aerobic batch activated sludge process, the method of the invention adopts pH, oxidation reduction potential (ORP) and dissolved oxygen (DO) as real-time monitoring parameters to establish an automatic control system. Under the condition of 10 DEG C-18 DEG C, by controlling the concentration of the free ammonia (FA) in a reactor system, the oxidation of nitrite is inhibited; or the aeration time is optimally controlled according to an ammonia valley point on a real-time pH curve, thereby realizing nitrosation-denitrosation treatment of high-concentration ammonia nitrogen wastewater. The nitrosation rate of the method can reach 80%, and the removal rates of TN, NH3-N and COD respectively reach higher than 95%, 99% and 90%.

Подробнее
15-12-2010 дата публикации

High-efficiency ultraviolet sterilizer

Номер: CN0101913679A
Принадлежит:

The invention discloses a high-efficiency ultraviolet sterilizer. The sterilizer provided by the invention comprises a sterilizer chamber, an ultraviolet light tube, a quartz glass sleeve and a sterilizer body with a water inlet and a water outlet; and an inner wall of the sterilizer chamber is also provided with an ultraviolet reflecting layer. The ultraviolet reflecting layer can be made of the quartz glass of which the surface is provided with aluminum or an aluminum alloy, or a fluorocarbon material. The high reflecting inner wall which is made of the quartz glass sleeve, the aluminum (the vacuum plating aluminum or an aluminum foil stuck outside) or the fluorocarbon material has the characteristics of high ultraviolet reflection, resistance to ultraviolet radiation, resistance to erosion and resistance to flow water impact; and compared with the inner wall of a normal stainless steel sterilizer, the inner wall of the chamber has the advantages that: when the inner wall of the chamber ...

Подробнее
09-11-2011 дата публикации

Method for reducing generation amount of bromate in ozone water treatment process through catalysis of Ce-MCM-48

Номер: CN0102234153A
Принадлежит:

The invention relates to a method for reducing the generation amount of bromate in the ozone water treatment process through catalysis of Ce-MCM-48. In the method, the generation amount of the bromate is greatly reduced by introducing a Ce-MCM-48 mesoporous molecular sieve forming catalyst in the ozone oxidation water treatment process. Filtered water which is subjected to treatment (coagulation, precipitation, filtration and the like) in the traditional water treatment process enters an ozone contact column and subjected to ozone aeration for 2 to 5 minutes, and water containing ozone enters a Ce-MCM-48 catalytic oxidation tank; or the filtered water is subjected to ozone aeration and Ce-MCM-48 catalytic reaction simultaneously. The Ce-MCM-48 mesoporous molecular sieve catalyst is prepared by synthesizing through hydro-thermal reaction, washing and roasting. The method has high efficiency for reducing the generation amount of the bromate. The Ce-MCM-48 forming catalyst has an effect of ...

Подробнее
03-08-2011 дата публикации

Process for realizing decrement of active sludge and removal of endocrine disrupting chemicals from sludge synergistically

Номер: CN0102140000A
Принадлежит:

The invention relates to a process for realizing the decrement of active sludge and the removal of endocrine disrupting chemicals from sludge synergistically in a municipal sewage treatment plant, and belongs to the technical field of environmental protection and waste water treatment. The active sludge is oxidized under the combined action of ozone and H2O2 to be decomposed, and organic a large number of micropollutants (such as the endocrine disrupting chemicals) adsorbed in the sludge are removed simultaneously, so that the concentration of the micropollutants in the active sludge is reduced effectively, wherein for the addition dosage of the ozone, more than or equal to 30 milligrams of ozone is added into each gram of dried sludge, the H2O2 can be added in batch or continuously, and a molar dosage ratio of the ozone to the H2O2 is 1:1.5. In the process, a simple system structure is simple, continuous automatic running can be realized, and large-scale industrial application is easy ...

Подробнее