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Sequencing batch electrode polarity reversal microbial fuel cell and use thereof

A fuel cell and sequencing batch technology, applied in the field of environmental engineering, can solve the problem of lack of coupling, and achieve the effects of improving efficiency, reducing costs, and operating flexibly

Inactive Publication Date: 2014-04-09
DALIAN UNIV OF TECH
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Obviously, the system does not achieve coupling in the true sense, but a simple addition and stacking of the two reactors in the physical sense

Method used

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  • Sequencing batch electrode polarity reversal microbial fuel cell and use thereof

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Embodiment

[0018] A sequencing batch type electrode reversal microbial fuel cell, the structure of the battery: the battery includes two symmetrical SBR reactors, and there is a gasket in the middle of the two symmetrical SBR reactors to fix the cation exchange membrane and prevent water leakage; Each SBR reactor acts as a half-cell and goes through anaerobic, aerobic and anoxic stages. The motor is installed on the top of the reactor. The anaerobic stage and the anoxic stage are driven by the motor to stir the stirring rod; the aerobic stage is passed through the bottom of the SBR reactor. The aeration head is used for aeration, and the exhaust is carried out through the vent hole located above the liquid level of the SBR reactor; the sequence batch difference of the two symmetrical SBR reactors makes there is a potential difference between the two symmetrical SBR reactors, so as to The carbon felt is used as an electrode to connect to the external circuit to generate current; the sequen...

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Abstract

The invention discloses a sequencing batch electrode polarity reversal microbial fuel cell and belongs to the technical field of sewage treatment and resourcing in environment engineering. The sequencing batch electrode polarity reversal microbial fuel cell comprises two symmetrical SBR reactors and a middle gasket for fixing an exchange membrane. The SBR reactors are used as half cells. Motors are installed on tops of the SBR reactors. In anaerobic and anoxic stages, the motors drive stirring bars to carry out stirring. In an aerobic stage, an aeration process is carried out by aeration heads at the bottoms of the SBR reactors and gas is discharged by gas vents above liquid levels in the SBR reactors. A carbon material as an electrode is connected to an external circuit. Water is fed by water inlets and outlet water is discharged by water outlets. The SBR reactors are used as the half cells so that operation is flexible. Through current-producing bacterium biological membrane catalytic anodic and cathodic reactions, pollutants are degraded and electric energy is produced. Electrode compartment sequencing batch operation causes electrode polarity reversal and alleviates pH gradient-caused overpotential. In the aerobic stage, methanogen growth is inhibited and an electric energy recovery rate is improved. In the anaerobic and aerobic stages, phosphor removal can be realized.

Description

technical field [0001] The invention belongs to the technical field of environmental engineering, and relates to sewage treatment and reclaimed water reuse technology, in particular to a microbial fuel cell with electrode anaerobic / aerobic / anoxic sequencing batch operation and polarity reversal, and synchronous removal of carbon, nitrogen, and phosphorus during electricity production Sewage treatment methods. Background technique [0002] my country is facing the dual pressure of water shortage and serious water pollution. Reuse of reclaimed water is one of the effective means to solve this problem. The SBR reactor adopts time division instead of space division, integrating biodegradation, sedimentation and other functions in one pool. The structure is simple, the operation is flexible, and it has the effect of denitrification and dephosphorization, and is beneficial to the expansion and transformation of the sewage treatment plant. [0003] As the global population and econ...

Claims

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Application Information

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IPC IPC(8): H01M8/16
CPCY02E60/527C02F3/34H01M8/16Y02E60/50
Inventor 张捍民张广毅
Owner DALIAN UNIV OF TECH
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