Continuous flow urban sewage partial nitrification and anaerobic ammonia oxidation denitrification method

A technology of anaerobic ammonium oxidation and nitrification anaerobic ammonium, which is applied in the field of continuous flow urban sewage short-range nitrification + anammox denitrification, can solve the problems of limited research and application, improve energy recovery rate, reduce aeration, avoid suppressed effects

Active Publication Date: 2013-05-08
上海立源生态工程有限公司
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Problems solved by technology

The research and application of the existing anammox technology is mainly concentrated in the treatment of high-temperature high-ammonia nitrogen wastewater, while the research and application of the anammox denitrification technology for urban sewage is very limited

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  • Continuous flow urban sewage partial nitrification and anaerobic ammonia oxidation denitrification method

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Embodiment Construction

[0021] Below in conjunction with accompanying drawing and embodiment the present invention will be further described: the continuous flow urban sewage short-range nitrification + anammox denitrification device is provided with urban sewage raw water tank 1, biological adsorption reactor 2, 1# secondary sedimentation tank 3, short-range nitrification Anammox reactor 4, 2# secondary settling tank 5; urban sewage raw water tank 1 is provided with overflow pipe 1.1 and vent pipe 1.2; urban sewage raw water tank 1 is connected with biosorption reactor 2 water inlet pipe through inlet pump 2.1 Connection; the biosorption reactor 2 is divided into several compartments, according to the direction of water flow, flow holes are arranged up and down to connect each compartment, and an air compressor 2.7, a gas flow meter 2.6, an air volume regulating valve 2.5 and an aerator head 2.2 are provided; The adsorption reactor 2 is connected to the 1# secondary sedimentation tank 3 through the c...

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Abstract

The invention discloses a continuous flow urban sewage partial nitrification and anaerobic ammonia oxidation denitrification method and belongs to the field of sewage. The method comprises the following steps of: allowing urban sewage to enter a biological adsorption reactor, adsorbing organic matters in water to activated sludge through the adsorption action of the activated sludge, and carrying out denitrification and anaerobic ammonia oxidation in an anoxic area of a partial nitrification anaerobic ammonia oxidation reactor to remove residual organic matters in water and nitrate nitrogen in return sludge; carrying out the partial nitrification in an aerobic area, and carrying out the anaerobic ammonia oxidation action in the anoxic area; repeating the actions in the aerobic area and the anoxic area; and finally, fulfilling the aim of removing nitrogen from the sludge.

Description

technical field [0001] The invention relates to a continuous flow urban sewage short-range nitrification + anaerobic ammonium oxidation denitrification method, which belongs to the technical field of sewage biological treatment. Background technique [0002] The eutrophication of water bodies is becoming more and more serious, deteriorating the urban water environment, and even interrupting the supply of drinking water sources, seriously affecting industrial production and residents' daily life, and causing huge direct and indirect economic losses. Nitrogen and phosphorus discharge in sewage is an important cause of water eutrophication, so a large number of sewage treatment plants have been built to control water eutrophication. Existing sewage treatment plants are large energy consumers. In the context of the increasingly prominent energy crisis, how to achieve efficient denitrification while reducing water treatment energy consumption and treatment costs is of great signi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 王淑莹马斌彭永臻包鹏李夕耀
Owner 上海立源生态工程有限公司
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