SBBR control system for integrated anaerobic ammonium oxidation of domestic sewage to strengthen endogenous denitrification

Abstract

The domestic sewage integrated anaerobic ammonium oxidation enhanced endogenous denitrification SBBR control system belongs to the field of sewage biological treatment. The system includes water tank, SBBR reactor. After the domestic sewage enters the SBBR reactor, the denitrifying bacteria use the organic matter in the sewage to carry out denitrification, and store the excess organic matter in the body to synthesize the internal carbon source. Oxyammoxidation reaction, DO, NH 4 + , NO 2 ‑ and NO 3 ‑ The sensor collects signals online, controls the DO concentration through computer output and adjusts the reaction time. After the aeration is completed, anoxic endogenous denitrification is performed to reduce the concentration of nitrate nitrogen in the effluent. After the reaction is completed, it will settle and drain. The invention utilizes the advantages of the SBBR system and the integrated anammox technology, and utilizes the organic matter in the sewage to save energy, reduce consumption, and withstand impact loads. At the same time, it optimizes the operation of the system through online real-time control, and has a high degree of automation and good controllability. Realize deep denitrification.

Description

technical field [0001] The invention relates to an SBBR control system for integrated anaerobic ammonium oxidation and enhanced endogenous denitrification of domestic sewage, and belongs to the technical field of sewage biological treatment. Background technique [0002] In recent years, due to the increasingly prominent problem of "eutrophication" of water bodies and increasingly stringent sewage discharge standards, the issue of denitrification of sewage has become a hot spot in water pollution control. [0003] Anaerobic ammonia oxidation technology refers to the process of simultaneously converting ammonia nitrogen and nitrite nitrogen into nitrogen gas under anaerobic conditions, using ammonia nitrogen as the electron donor and nitrite nitrogen as the electron acceptor, without consuming organic carbon sources during the process , overcomes the shortcomings of insufficient carbon sources in the traditional denitrification process, and can save the energy required for ae...

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Problems solved by technology

[0008] Aiming at the current low carbon-nitrogen ratio (C / N) of domestic sewage, poor denitrification effect of the traditional denitrification process, and high energy consumption, the present invention provides an integrated anaerobic ammonium oxidation to strengthen endogenous denitrification The method of SBBR control system to treat low-carbon domestic sewage can not only solve the problem of insufficient carbon source in the traditional denitrification process, but also save the energy required for aeration. At the same time, it adopts real-time control to improve the controllability and flexibility of the device, and realize nitrogen depth removal

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