Brewery wastewater treatment device and treatment method

Abstract

The invention provides a brewery wastewater treatment device and a treatment method. The device comprises a reactor; the reactor comprises a cathode chamber and an anode chamber; the two chambers are separated by a proton exchange membrane; the anode is arranged in the anode chamber and the cathode is arranged in the cathode chamber; the lower end and the upper end of the cathode chamber and the anode chamber are respectively provided with a water inlet and a water outlet; the upper part of the anode chamber is sealed by a seal cover; the bottom of the cathode chamber is provided with an aerating device; the anode and the cathode are connected by a lead and are connected with load to form a closed loop. The invention adopts bipolar chambers of microbial fuel cells to form an anaerobic-aerobic combined process to treat the brewery wastewater, can generate electric energy while treating the wastewater and has environmental, social and economic benefits. The invention not only can treat the brewery wastewater, but also is suitable for other organic industrial wastewater with high concentration, even for the treatment of the organic wastewater difficult to degrade, can effectively convert the chemical energy into the electric energy and simultaneously obtains good wastewater treatment effects.

Description

(1) Technical field [0001] The invention relates to the technical field of industrial wastewater treatment, in particular to a treatment technology of brewing wastewater. The present invention also relates to a microbial fuel cell technology. (2) Background technology [0002] Microbial Fuel Cell (MFC) is a device that uses the catalytic action of microorganisms to convert chemical energy into electrical energy, which can generate electricity and treat wastewater at the same time. Many small and macromolecular mixed organics can be used as substrates, such as glucose, sodium acetate, domestic wastewater, etc. Most of the substrates can be well degraded while producing electricity. The application of MFC in the field of sewage treatment is undoubtedly a major innovation in the concept of sewage treatment. It not only purifies sewage but also recovers biomass energy. At the same time, the sludge yield is low, which reduces the treatment cost of water plants and maximizes the ...

AI Technical Summary

Problems solved by technology

However, the microbial fuel cell treatment method for beer wastewater uses a single-chamber microbial fuel cell, and the entire treatment process uses anaerobic biological treatment technology. Wide, COD is 450-20mg / L, although the lowest reaches 20mg / L, but sometimes the effluent COD does not meet the discharge standard, and it still needs to be further treated by subsequent treatment processes. In addition, the entire treatment process of the invention adopts anaerobic biological treatment The technology itself has the problem that the COD value in the effluent may not meet the discharge standard. Even if the COD value can be reduced to a very low level, due to the slow reaction speed of anaerobic biological treatment technology, a long residence time is required, even up to several days

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