System for treatment of wetland-produced electricity from domestic sewage and electrochemical disinfection of wetland effluent

A domestic sewage and chemical disinfection technology, applied in chemical instruments and methods, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc. Applicable to the disinfection of sewage tail water and other issues, to achieve the effect of improving the treatment effect, continuous sterilization ability, and simple structure

Inactive Publication Date: 2014-08-27
SOUTHEAST UNIV
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  • Application Information

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Problems solved by technology

However, the sewage effluent treated by microbial fuel cell wetlands may still contain a certain amount of pathogenic bacteria, which is a potential risk to human health.
Moreover, the cost of equipment or chemicals for

Method used

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  • System for treatment of wetland-produced electricity from domestic sewage and electrochemical disinfection of wetland effluent

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] A wetland power generation system for treating domestic sewage and used for electrochemical disinfection of wetland effluent, including a microbial fuel cell wetland main body 5 and an electrochemical disinfection tank 10;

[0029] The microbial fuel cell type wetland main body 5 is provided with filler 2, anode 3, filler 2, cathode 4 and wetland plants 6 sequentially from bottom to top, the anode 3 is made of carbon particles, the cathode 4 is made of carbon cloth, and the filler layer of the filler 2 is made of gravel The wetland plant 6 is reed, and the microbial fuel cell wetland main body 5 is provided with a microbial fuel cell wetland water inlet 1 at the lower part of one side, and a microbial fuel cell wetland water outlet 12 is provided at the top of the other side;

[0030] The electrochemical disinfection pool 10 is provided ...

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Abstract

The invention discloses a system for treatment of wetland-produced electricity from domestic sewage and electrochemical disinfection of wetland effluent. The system comprises a microbial fuel cell wetland main body and an electrochemical disinfection tank, wherein a packing, an anode, a packing, a cathode and a wetland plant are sequentially arranged on the microbial fuel cell wetland main body from bottom to top; the effluent of the microbial fuel cell wetland main body flows into the electrochemical disinfection tank through a water pipe; and an anode and a cathode are arranged inside the electrochemical disinfection tank, and are respectively connected with the cathode and the anode in the microbial fuel cell wetland main body by virtue of leads, so as to form an intact closed loop and generate current. The system is applied to electrochemical disinfection of the effluent after microbial fuel cell wetland treatment. By adopting the system, the problems of high disinfection cost of the wetland effluent and complicated maintenance operation are solved, the safety of the wetland effluent is effectively improved, and the system is especially applicable to disinfection of artificial wetland effluent for treating rural domestic sewage.

Description

technical field [0001] The invention belongs to the technical field of energy and environment engineering, and relates to a sewage treatment method for electrochemical disinfection of microbial fuel cell type wetland effluent. Background technique [0002] Constructed wetlands are artificially constructed and regulated wetland systems that treat sewage through an optimized combination of physical, chemical and biological actions in the ecosystem. Constructed wetlands are generally composed of artificial substrates and aquatic plants growing on them, forming a substrate-plant-microbe ecosystem. When sewage passes through the system, pollutants and nutrients are absorbed, transformed or decomposed by the system, thereby purifying the water body. [0003] Microbial fuel cells use bacteria on the anode (or in the anode chamber) as catalysts to convert chemical energy directly into electrical energy. The principle is that the electrons generated by bacteria degrading organic ma...

Claims

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Application Information

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IPC IPC(8): C02F9/14
Inventor 宋海亮张晓李先宁吴磊杨小丽
Owner SOUTHEAST UNIV
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