Domestic sewage integrated anaerobic ammonia oxidation-strengthened endogenous denitrification SBBR control system

Abstract

The invention discloses a domestic sewage integrated anaerobic ammonia oxidation-strengthened endogenous denitrification SBBR control system, and belongs to the field of biological sewage treatment. The system comprises a water tank and an SBBR reactor; after domestic sewage enters the SBBR reactor, denitrifying bacteria achieve a denitrifying effect by utilizing organic matters in the sewage, and redundant organic matters are stored in vivo to synthesize an internal carbon source; micro-aeration is started after the reaction is ended; integrated anaerobic ammonia oxidation reaction is performed on a biological membrane; a DO sensor, a NH4<+> sensor, a NO2 sensor and a NO3 sensor acquire signals online, the DO concentration is controlled and the reaction time is adjusted via computer output; after the aeration is completed, anoxic endogenous denitrification is performed, the concentration of nitrate nitrogen of outlet water is reduced, and static settling is performed and water is discharged after the reaction is completed. According to the domestic sewage integrated anaerobic ammonia oxidation-strengthened endogenous denitrification SBBR control system, the technical advantages of the SBBR system and integrated anaerobic ammonia oxidation are played; the organic matters in the sewage are utilized, so that the SBBR control system has the characteristics of energy conservation, consumption reduction and impact load resistance; meanwhile, the system operation is optimized via online real-time control; the automation degree is high; the controllability is high; advanced nitrogen removal can be realized.

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...

AI Technical Summary

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

Images