Wastewater anaerobic biological treatment system for seasonal strain preservation and recovery, and application thereof

Abstract

The invention relates to a wastewater anaerobic biological treatment system for seasonal strain preservation and recovery, and an application thereof. The wastewater anaerobic biological treatment system comprises a water inlet device for inputting wastewater to be treated, an anaerobic biological treatment device for carrying out anaerobic biological treatment on the wastewater to be treated, a subsequent treatment device for further treating the wastewater passing through the anaerobic biological treatment device, a monitoring device for monitoring and outputting parameters of a mixed liquidin the anaerobic biological treatment device, and a control device for controlling a servo component in the anaerobic biological treatment device on the basis of a signal which is output by the monitoring device and contains a parameter value so as to adjust the corresponding parameters. A process reactor of the system is simple in structure, convenient to maintain, concise in operation logic, simple in operation and maintenance, low in manual requirement and easy to realize automatic control.

Description

technical field [0001] The invention belongs to the technical field of sewage biological treatment, and in particular relates to a waste water anaerobic biological treatment system for preservation and recovery of seasonal strains and its application. Background technique [0002] Anaerobic digestion can effectively realize simultaneous energy recovery and pollutant removal from high-concentration organic wastewater. It is a green sewage recycling technology and has great potential in the field of high-concentration organic wastewater treatment and recycling. With the rapid improvement of the online continuous monitoring capability of pollution sources, the discharge of industrial wastewater formed by my country's huge industrial volume has increasingly attracted widespread public attention; the seasonal intermittent sewage discharge sources such as agricultural and sideline food processing industries due to raw material restrictions have also accelerated recently. Incorporat...

AI Technical Summary

Problems solved by technology

Due to insufficient load, the sludge concentration of seasonal intermittent wastewater in the shutdown stage is often much lower than that in the normal operation stage, resulting in maintaining a sufficient amount of anaerobic sludge as a key challenge for the preservation of anaerobic treatment bacteria: sufficient load is limited by the amount of influent The limit is difficult to reach, and the low load causes the sludge in the anaerobic system to enter the endogenous respiration stage and die

The decline of the bacteria makes it difficult to restart the anaerobic treatment, and the COD removal rate is reduced. Further treatment is required to meet the standard, which hinders the continuous operation of the anaerobic treatment

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