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Municipal sewage partial nitrification and anaerobic ammonia oxidation denitrification method capable of enhancing energy recuperation

A technology of anaerobic ammonium oxidation and urban sewage, applied in the field of sewage biological treatment, can solve the problems of poor effluent stability and high energy consumption for treatment, and achieve the effects of less discharge, reduced aeration, and reduced energy consumption

Active Publication Date: 2013-04-24
贵州筑信水务环境产业有限公司
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of high energy consumption and poor effluent stability in the existing urban sewage treatment, and propose a method and device for strengthening energy recovery of urban sewage short-range nitrification + anammox denitrification. The method and device first The organic matter in the sewage is enriched into the sludge through biosorption, and then the sludge is anaerobically fermented to produce methane to improve the energy recovery rate in the sewage; then the sewage is denitrified by short-range nitrification and anammox

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  • Municipal sewage partial nitrification and anaerobic ammonia oxidation denitrification method capable of enhancing energy recuperation

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[0020] Below in conjunction with accompanying drawing and embodiment the present invention will be further described: as figure 1 The shown urban sewage short-range nitrification + anammox denitrification device with enhanced energy recovery is equipped with urban sewage raw water tank 1, biological adsorption reactor 2, secondary sedimentation tank 3, intermediate water tank 4, SBR reactor 5; urban sewage raw water tank 1 is equipped with an overflow pipe 1.1 and a vent pipe 1.2; the urban sewage raw water tank 1 is connected to the water inlet pipe of the biosorption reactor 2 through the water inlet pump 2.1; Set up flow holes to connect each compartment, set up air compressor 2.7, gas flow meter 2.6, gas volume regulating valve 2.5, and aeration head 2.3; biosorption reactor 2 is connected to secondary settling tank 3 through secondary settling tank connecting pipe 2.4 The secondary sedimentation tank 3 is connected to the water inlet pipe of the biosorption reactor 2 thro...

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Abstract

The invention relates to a municipal sewage partial nitrification and anaerobic ammonia oxidation denitrification method capable of enhancing energy recuperation, and belongs to the field of sewage treatment. According to the invention, municipal sewage enters a biosorption reactor at first, organic matter in the sewage is absorbed into activated sludge through the absorption effect of the activated sludge, then the municipal sewage enters an SBR (Sequencing Batch Reactor Activated Sludge Process) reactor, and through the alternate operation of low oxygen aeration and anaerobic agitation, the autotrophic nitrogen removal of the partial nitrification and the anaerobic ammonia oxidation is realized, so that the energy recuperation efficiency of the sewage treatment is improved, and the operation energy consumption of the sewage treatment is lowered.

Description

technical field [0001] The invention relates to a method for strengthening energy recovery of urban sewage short-range nitrification + anaerobic ammonium oxidation denitrification, which belongs to the technical field of sewage biological treatment. Background technique [0002] The organic matter in urban sewage is not only a pollutant, but can also be regarded as an energy carrier, because methane can be produced through anaerobic fermentation, and the organic matter in the water can be converted into methane, an energy substance. The traditional nitrification and denitrification biological denitrification process currently used in urban sewage plants needs to use organic matter in sewage as a denitrification carbon source for biological denitrification, thus reducing the amount of organic matter in sewage for methane production. The discovery of anammox bacteria makes the biological denitrification of sewage without organic matter, so that as much organic matter in sewage...

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Application Information

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IPC IPC(8): C02F9/14C02F3/28
CPCY02W10/30
Inventor 王淑莹马斌彭永臻李夕耀包鹏
Owner 贵州筑信水务环境产业有限公司
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