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Low-oxygen aeration AOA-SBBR short-cut nitrification anaerobic ammonia oxidation coupling denitrifying phosphorus removal integrated urban sewage treatment method

A nitrification anaerobic ammonium oxidation coupling, AOA-SBBR technology, applied in special compound water treatment, aerobic and anaerobic process treatment, biological water/sewage treatment, etc. To achieve the effect of energy saving and efficient removal

Pending Publication Date: 2021-08-10
BEIJING UNIV OF TECH
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Problems solved by technology

[0005] The purpose of the present invention is to provide a low-oxygen aeration AOA-SBBR short-range nitrification anaerobic ammonium oxidation coupling denitrification and phosphorus removal integrated urban sewage treatment method, to solve the problem of insufficient carbon source in the traditional denitrification process and PNA technology effluent contains Nitrate problem

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  • Low-oxygen aeration AOA-SBBR short-cut nitrification anaerobic ammonia oxidation coupling denitrifying phosphorus removal integrated urban sewage treatment method

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Embodiment Construction

[0025] Further explanation is carried out in conjunction with accompanying drawing and embodiment: as figure 1As shown, the low-oxygen aeration AOA-SBBR short-course nitrification anammox coupled denitrification phosphorus removal integrated urban sewage treatment method is characterized in that the device used includes a raw water tank (1), short-course nitrification anammox coupled denitrification Phosphorus removal integrated SBBR reactor (2), effluent water tank (3), and on-line monitoring and feedback control system (4); wherein the raw water tank (1) is connected with single-stage SBBR short-range nitrification anaerobic through inlet pump (2.1) The ammonium oxidation coupling endogenous denitrification SBBR reactor (2) is connected; the short-range nitrification anaerobic ammonium oxidation coupling denitrification phosphorus removal integrated SBBR reactor (2) is connected to the outlet water tank (3) with the electric drainage valve (2.6);

[0026] The short-cut nitri...

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Abstract

The invention discloses a low-oxygen aeration AOA-SBBR short-cut nitrification anaerobic ammonia oxidation coupling denitrifying phosphorus removal integrated urban sewage treatment method, and belongs to the technical field of biological sewage treatment. Sewage enters a short-cut nitrification anaerobic ammonia oxidation coupled denitrifying phosphorus removal integrated SBBR reactor through a water inlet pump, firstly, anaerobic stirring is carried out, denitrifying phosphorus-accumulating bacteria and denitrifying glycogen-accumulating bacteria store easily degradable organic matters in water as an internal carbon source, then NH4 +-N is oxidized into NO2 --N through ammonia oxidizing bacteria in an aerobic aeration stage, anaerobic ammonium oxidation bacteria are utilized to convert generated NO2 --N and NH4 +-N into N2 for denitrification under the condition of a micro-anoxic environment in a filler; and finally, denitrifying phosphorus-accumulating bacteria and denitrifying glycogen-accumulating bacteria are utilized to remove residual NO2 --N, NO3 --N and phosphorus in sewage through endogenous denitrification in the anoxic stage. According to the method, short-cut nitrification, anaerobic ammonia oxidation and denitrifying phosphorus removal are coupled in one SBBR reactor, so that the urban sewage can be deeply treated on the basis of saving energy and fully utilizing a carbon source.

Description

technical field [0001] The low-oxygen aeration AOA-SBBR short-range nitrification anaerobic ammonium oxidation coupled denitrification and phosphorus removal integrated urban sewage treatment method related to the invention belongs to the technical field of sewage biological treatment. Background technique [0002] The non-standard discharge of nitrogen and phosphorus in sewage has caused large-scale eutrophication of water bodies in my country, and the increasingly stringent water discharge standards have made it urgent for the existing research on nitrogen and phosphorus removal from sewage to develop in the direction of high efficiency and low energy consumption. [0003] Biological denitrification is generally based on the traditional nitrification-denitrification system. In view of the generally low C / N water quality characteristics of urban sewage, choosing an external carbon source to achieve denitrification will greatly increase the cost of sewage treatment. The bott...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30C02F3/34C02F101/10C02F101/16
CPCC02F3/303C02F3/305C02F3/307C02F3/308C02F3/34C02F2101/105C02F2101/16C02F2101/163C02F2101/166C02F2305/06
Inventor 彭永臻朱卓张丽媛代佳彤
Owner BEIJING UNIV OF TECH
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