Method and device for simultaneously carrying out wastewater treatment and power generation by using photocatalysis associated microbial fuel cell technology
A fuel cell and microbial technology, which is applied in the field of photocatalytic synergistic microbial fuel cell technology to treat sewage and generate electricity at the same time, can solve the problems of low COD removal rate, complex structure, and low power generation in wastewater, and achieve simple structure, low treatment cost, and increased The effect of power production
Inactive Publication Date: 2014-06-18
CHONGQING UNIV
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Problems solved by technology
[0004] In order to solve the existing problems of complex structure of microbial cathode microbial fuel cells, low power generation and low COD removal rate of wastewater, the present invention provides a method and device for simultaneous power generation of sewage by photocatalytic synergistic microbial fuel cell technology
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[0024] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments, but the present invention is not limited thereto.
[0025] The electrodes used in the following embodiments: the outer walls of the negative and anode chambers are connected to the conductive fillers in the respective chambers as the electrodes of the microbial fuel cell, wherein the outer walls of the cathode chamber are conductive glass coated with titanium dioxide (n-type semiconductor), and the outer walls of the anode chamber are coated with titanium dioxide (n-type semiconductor). The walls are conductive glass coated with silicon dioxide (p-type semiconductor). Both the cationic membrane and the anionic membrane were purchased from Japan Asahi Glass Company; except for the conductive glass, the shell material of the reaction device was plexiglass.
[0026] see figure 1 , the device has MFC anode chamber A and MFC cathode chamber B. Conductive...
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Abstract
The invention discloses a method and a device for simultaneously carrying out wastewater treatment and power generation by using a photocatalysis associated microbial fuel cell technology. The device takes conductive glass coated with an n-type semiconductor photocatalyst film as an outside wall of a cathode chamber and takes conductive glass coated with an n-type semiconductor photocatalyst film as an outside wall of an anode chamber, a conductive filler respectively connected on the outside walls of the cathode chamber and the anode chamber is used as an electrode of a microbial fuel cell. The conductive filler is a carbon fiber rope for microbial growth. Denitrifying bacteria and nitrifying bacteria are respectively cultivated at the cathode and anode of the microbial fuel cell, and mainly used for the degradation of organic matters and the removal of ammonia nitrogen. Under the irradiation of ultraviolet light, electrons flow from the anode to the cathode, so that the anode has strong oxidability, and the cathode has strong reducibility. In the invention, the functions of microbial fuel cells and a photocatalysis technology are mutually associated, so that the wastewater treatment cost is low, and the generating capacity is large.
Description
technical field [0001] The invention relates to photocatalytic technology and microbial fuel cell technology, in particular to a method and device for treating sewage with photocatalytic and microbial fuel cell technology and simultaneously generating electricity. technical background [0002] Microbial Fuel Cell (MFC for short) is a device that uses microorganisms to directly convert chemical energy in organic matter into electrical energy. In the anaerobic environment of the anode chamber, organic matter decomposes under the action of microorganisms and releases electrons and protons. Electrons rely on suitable electron transfer mediators to efficiently transfer between biological components and the anode, and transfer to the cathode through an external circuit to form an electric current, while protons transfer to the cathode through the proton exchange membrane. The oxidant gets electrons at the cathode and is reduced to combine with protons to form water. The study fo...
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IPC IPC(8): C02F3/34H01M8/16
CPCY02E60/527Y02E60/50Y02W10/37
Inventor 徐璇范子红周碧邹秋林姜宁刘亭役
Owner CHONGQING UNIV