Device for degrading antibiotics by adopting photocatalysis-assisted enhanced biological anode

Abstract

The invention provides a photoelectrocatalysis and microbial fuel cell coupling system for treating antibiotics, and belongs to the technical field of difficult-to-degrade pollutant treatment and energy recovery and utilization. An electrogenesis biological anode of a microbial fuel cell (MFC) is coupled with a photoelectrocatalysis anode to form a coupled electrogenesis catalytic degradation antibiotic system; a photocatalysis anode of the system is of a net structure with a nickel net loaded with a hydrothermal TiO2 catalyst; the biological anode of the system is a carbon brush loaded with electrogenesis microorganisms; and a cathode of the system is a common carbon brush; the cathode and the anode are separated by an ion exchange membrane. The effect of the system in the degradation ofdifficult-to-degrade antibiotics by an anode is obviously superior to that of a traditional microbial fuel cell or a photoelectrocatalysis system; and degradation reaction of the traditional microbialfuel cell is carried out under the condition of the absence of light. According to the advantages of the device, the MFC system and the photocatalysis system are coupled, the problems that an existing MFC is low in degradation efficiency and low in power generation can be solved, and the degradation efficiency of the antibiotics is higher, and the degradation of the antibiotics is more thorough.

Description

technical field [0001] The invention belongs to the field of pollutant treatment and energy utilization, and relates to the use of hydrothermal TiO 2 The anode of the catalytic material electrode and microbial electrode coupling system treats the antibiotic, and directly converts the chemical energy of the antibiotic into electrical energy. Background technique [0002] Microbial fuel cells are a special type of biomass fuel cells, which can directly convert the energy of microbial metabolism or enzyme-catalyzed organic substrates into electrical energy through electrochemical technology. Microbial fuel cells are a promising antibiotic treatment process that can solve environmental and energy problems at the same time, but there are still many technical and cost problems to be solved in practical applications, such as low power generation and inability to fully utilize the energy in refractory pollutants Etc. Therefore, more and more researches are being done on the combina...

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Problems solved by technology

[0003] The invention couples two systems of photoelectric catalysis and microbial fuel cell, aiming to solve the problem of low power generation of existing microbial fuel cells and the inability to fully utilize the energy in antibiotic pollutants, and also solves the problem that photocatalysis requires light to degrade pollutants technical limitations of

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