Integrated iron-based decontamination and resource reuse microbial fuel cell and sewage treatment method

Abstract

The invention discloses an integrated iron-based decontamination and resource reuse microbial fuel cell and a sewage treatment method. A negative electrode chamber of the cell is sleeved with a positive electrode chamber and internally provided with a negative electrode, a denitrifying biofilm adheres to the surface of the negative electrode, an electric wire is connected to the surface of the negative electrode, a negative chamber water inlet is formed in the lower portion of the negative chamber, a three-phase separator is arranged at the upper end of the negative electrode chamber, and a proton exchange membrane performing proton exchange with the positive electrode chamber is arranged on the side wall of the negative electrode chamber; a hollow cylindrical positive electrode chamber built-in baffle is fixedly arranged in the positive electrode chamber, and a liquid flow gap is formed between the outer surface of the positive electrode chamber built-in baffle and the inner surface of the positive electrode chamber; the positive electrode chamber built-in baffle sleeves the periphery of the negative electrode chamber and the three-phase separator; the positive electrode chamber is internally provided with an iron positive electrode, the positive electrode is arranged between the negative electrode chamber and the positive electrode chamber built-in baffler, and the electric wire is connected to the positive electrode. Accordingly, integration of the negative electrode and the positive electrode of the microbial fuel cell is achieved, the occupied area of the microbial fuel cell is reduced, and the project investment cost is lowered.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment and fuel cells, and in particular relates to an integrated iron-based decontamination and resource recycling microbial fuel cell and a sewage treatment method. Background technique [0002] According to the "Notice on Strengthening the Prevention and Control of Nitrogen and Phosphorus Pollution from Fixed Pollution Sources" issued by the Ministry of Ecology and Environment of my country in 2018, the situation of water pollution prevention and control in my country is facing new changes. Pollutants, nitrogen and phosphorus pollution prevention and control has become a major bottleneck in the improvement of water quality in the basin. [0003] The traditional biological nitrogen removal technology needs to add additional organic matter as the denitrification electron donor, and the traditional chemical phosphorus removal technology needs to add iron salts, aluminum salts, etc. as phosphorus ...

AI Technical Summary

Problems solved by technology

Moreover, most of the phosphate rocks in my country are medium and low-grade ores, which are difficult to mine, cause serious losses of phosphate rocks, and have a low degree of guarantee for phosphate rocks.

[0005] Facing the dual pressure of environmental pollution and resource shortage, traditional wastewater treatment technologies with high energy consumption, high investment, low output or even no output have been difficult to meet the requirements of sustainable development

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