Multi-working-electrode sleeve double-chamber bioelectrochemical sewage treatment device

Abstract

The invention discloses a multi-working-electrode sleeve double-chamber bioelectrochemical sewage treatment device which comprises a tank body and a sealing cover, a sleeve used for placing a counter electrode is arranged in the tank body, the sleeve is located at the center of the tank body, the upper end of the sleeve is connected with the sealing cover, an ion exchange membrane is arranged at the lower end of the sleeve, and a counter electrode chamber is arranged in the sleeve. A working electrode chamber is formed between the sleeve and the cell body; a liquid changing pipe and an air outlet pipe are arranged on the sealing cover and are respectively communicated with the working electrode chamber; working electrodes, a counter electrode and a reference electrode are arranged on the sealing cover in a penetrating manner, the counter electrode penetrates into the counter electrode chamber, and the multiple working electrodes are annularly distributed on the periphery of the counter electrode; the reference electrode is arranged close to the counter electrode, and the working electrode and the reference electrode both extend into the working electrode chamber; and the plurality of working electrodes are connected with the multi-channel potentiostat. The device can directionally enrich electrochemical active microorganisms, has the functions of efficiently growing a biological membrane and ensuring the uniformity of a microorganism growth environment, and improves the sewage treatment efficiency.

Description

technical field [0001] The invention relates to the technical field of bioelectrochemistry and sewage treatment, in particular to a multi-working electrode sleeve double-chamber bioelectrochemical sewage treatment device. Background technique [0002] The bioelectrochemical system is a typical system combining electrochemistry and microbiology, which has advantages in the process of removing pollutants in water. The composition and metabolic characteristics of the system flora affect the overall performance of the system. Electroactive microorganisms refer to a class of microorganisms that can exchange electrons with extracellular electron donors or acceptors through the cellular electron transport chain. Electroactive microorganisms can transfer the electrons generated by metabolism to the outside of the cell through a series of cytochrome transmembrane, and directly reduce high-valent metal oxides (such as iron oxide and manganese oxide) in the surrounding environment with...

AI Technical Summary

Problems solved by technology

The vast majority of electroactive microorganisms are extremely sensitive to the operating conditions of the system, and small changes in external environmental conditions often cause great changes in the structure, composition, and abundance of microbial communities, which will further affect the operating efficiency of bioelectrochemical systems.

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