Electrocatalytic system, electrode assembly and application applied to anaerobic biological treatment technology

By using electrocatalytic packing material woven from modified carbon fiber filaments and nylon wire skeletons and a low-voltage power supply system, the problems of electrode corrosion and microbial enrichment in bioelectrochemical systems were solved, achieving efficient decomposition and degradation of organic matter and improving wastewater treatment efficiency.

CN117699954BActive Publication Date: 2026-07-07GUANGZHOU EBO ENVIRONMENTAL PROTECTION TECHCO
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Patent Information

Application Number
CN202410013015.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-01-02
Publication Date
2026-07-07
Estimated Expiration
2044-01-02

AI Technical Summary

Technical Problem

The electrode materials of existing bioelectrochemical systems are prone to corrosion and have weak microbial enrichment capabilities. Their engineering application costs are high and their ability to degrade organic matter is insufficient, which limits their large-scale application.

Method used

An electrocatalytic system was constructed by using an "8"-shaped electrocatalytic packing material woven from modified carbon fiber filaments and nylon wire skeleton, combined with a low-voltage power supply and an aeration system, to promote microbial electron transfer and organic matter decomposition.

Benefits of technology

It improves the efficiency of electrocatalytic reactions, reduces costs, enhances the ability of microorganisms to accumulate, promotes the decomposition and degradation of organic matter, improves COD removal efficiency, and improves the biodegradability of wastewater.

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Abstract

The application provides an electro-catalysis system applied to an anaerobic biological treatment technology, an electrode assembly and application. The electrode assembly comprises an electrode frame, a plurality of cathode electrode plates and a plurality of anode electrode plates. The cathode electrode plates and the anode electrode plates are fixed on the electrode frame at intervals. A plurality of electro-catalysis fillers are arranged at intervals along the height direction of the cathode electrode plates and the anode electrode plates. The electro-catalysis fillers are made of a plurality of "8" type woven products around a center rope. The "8" type woven product is made of modified carbon fiber filaments and a nylon wire framework. The electro-catalysis filler made of the modified carbon fiber filaments can guarantee the strength of the filler, greatly reduce the use amount of carbon materials, reduce the cost and have good corrosion resistance. Since the carbon fiber material has excellent specific surface area, the amount of microorganisms can be enriched, and the efficiency of electron transfer can be improved. Since the nylon wire framework is adopted for support, the form of the filler is guaranteed, and efficient operation of the electro-catalysis reaction is guaranteed.
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