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A kind of method utilizing microbial fuel cell to treat perchlorate

A fuel cell and perchlorate technology, applied in biochemical fuel cells, biological water/sewage treatment, chemical instruments and methods, etc., can solve problems such as low perchlorate efficiency and metal surface pollution

Active Publication Date: 2018-04-10
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to overcome the existence of metal surface pollution in electrochemical method processing perchlorate, passivation and pure use of Fe 0 Dealing with the inefficiency of perchlorate, providing a method for treating perchlorate using microbial fuel cells

Method used

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  • A kind of method utilizing microbial fuel cell to treat perchlorate
  • A kind of method utilizing microbial fuel cell to treat perchlorate
  • A kind of method utilizing microbial fuel cell to treat perchlorate

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Embodiment Construction

[0024] A device based on a method for treating perchlorate with a microbial fuel cell includes a microbial fuel cell and an external circuit system. The reactor housing 1 of the microbial fuel cell is a plexiglass box, and the upper part of the housing is provided with water inlet and outlet holes. The two reactor shells 1 are connected by a proton exchange membrane 5 and an apron 8 to form an anode chamber 12 and a cathode chamber 13. There is an organic glass plate 2 on the left side of the anode chamber 12, and an organic glass plate 2 on the right side of the cathode chamber 13. The carbon brush anode 3 is inserted in the center position of the plexiglass plate 2, and the brush head is in the anode chamber 12 on the left side, and anaerobic electricity-producing microorganisms are attached on the bristles, and a conductive cathode 4 is embedded in the cathode chamber 13, and Fe is loaded on the cathode 0 The particles 18 and the conductive cathode 4 can be made of carbon cl...

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Abstract

The invention discloses a method utilizing a microbial fuel cell to process perchlorate. According to the method, a microbial fuel cell and a nano zero-valent iron (Fe<0>) particle loaded negative electrode are co-used to remove perchlorate; and a system used in the method comprises a microbial fuel cell and an exterior circuit system. The method comprises the following steps: (1) assembling a standard single-chamber microbial fuel cell, and culturing a biological membrane on the positive electrode brush; (2) preparing a Fe<0> particle loaded negative electrode carbon felt; (3) assembling a double-chamber microbial fuel cell to process ClO4<-> wastewater, and after a reaction period, measuring the removal rate of ClO4<-> through a colorimetric method. The microbial fuel cell is used to process organic wastewater, electric energy is generated at the same time and can be used to overcome the energy barrier of reducing ClO4<-> by Fe<0>; thus the organic wastewater and wastewater with a high perchlorate content can be synchronously treated, and the method is economic, environment-friendly and efficient.

Description

technical field [0001] The invention belongs to the field of groundwater pollution treatment, and relates to the treatment of perchlorate pollution in groundwater, in particular to a method for treating perchlorate with a microbial fuel cell. Background technique [0002] As a new type of persistent pollutant chemical substance, perchlorate can cause environmental pollution in its production, storage, transportation, use or disposal, etc., and perchlorate is easily soluble in water, not easy to decompose, and can flow rapidly with water Diffusion caused pollution of large areas of water. Due to the high solubility and non-volatility of perchlorate, conventional treatment methods such as filtration and precipitation cannot effectively remove it. At present, the perchlorate treatment methods mainly include: activated carbon removal method, ion exchange method, chemical reduction method, membrane separation technology, biological treatment method and comprehensive method. Amo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/16C02F3/34
CPCC02F3/34H01M8/16Y02E60/50
Inventor 杨俏张凤香武振兴
Owner DALIAN UNIV OF TECH
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