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Continuous and efficient wastewater treatment microbial fuel cell

A wastewater treatment and fuel cell technology, applied in biochemical fuel cells, fuel cells, biological water/sewage treatment, etc., can solve problems such as the difficulty of microbial fuel cells, and achieve improved scalability, enhanced metabolism, and enhanced treatment effects. Effect

Inactive Publication Date: 2010-05-19
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the technical status of the existing microbial fuel cells, the purpose of the present invention is to provide a microbial fuel cell that recycles the chemical energy contained in the organic matrix in a continuous power generation manner while continuously and efficiently treating wastewater, so as to solve the problems of the prior art. It is difficult to apply microbial fuel cells to the production practice of wastewater treatment, and improve the practical application ability of microbial fuel cells

Method used

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  • Continuous and efficient wastewater treatment microbial fuel cell
  • Continuous and efficient wastewater treatment microbial fuel cell
  • Continuous and efficient wastewater treatment microbial fuel cell

Examples

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Embodiment 1

[0026] In this example, the performance of continuous high-efficiency wastewater treatment and synchronous power generation AFB dual-chamber microbial fuel cell using glucose water distribution and secondary digested sludge inoculation of sewage treatment plant was tested. The proton exchange membrane used is Nafion117 membrane, which has not been pretreated before use. The water inflow to the anode chamber is artificial glucose distribution water, and its pH is between 7 and 8. The filling amount of the particle carrier in the anode chamber is 16.5% (the ratio of the filling volume to the effective volume of the anode chamber). Oxygen is blown off. The liquid in the cathode chamber is tap water. The anode is 4×38.6 cm carbon paper, and the cathode is 3.5×38.5 cm carbon paper. The external resistance value used is 2000Ω. The voltage at both ends of the external resistance is measured and recorded by the computer using the new digital multimeter UT70B of Unilever, and the COD...

Embodiment 2

[0028] In this example, the electricity production and wastewater treatment performance of the AFB type dual-chamber microbial fuel cell with self-distribution water inoculated and cultivated successfully for continuous high-efficiency wastewater treatment and synchronous electricity generation when treating alcohol wastewater were tested. The pH of the treated alcohol wastewater raw water is 3.81, and the COD concentration is between 20,960 and 28,400 mg / L. Corresponding dilution and pH adjustment are carried out according to the needs of the experiment. The proton exchange membrane used is Nafion117 membrane, which has not been pretreated before use. The filling amount of the particle carrier in the anode chamber is 16.5% (the ratio of the filling volume to the effective volume of the anode chamber), and the liquid in the cathode chamber is tap water. The anode is 4×20 cm carbon paper, and the cathode is 3.5×30 cm carbon paper. The external resistance value used is 250Ω. Th...

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Abstract

The invention discloses a continuous and efficient wastewater treatment microbial fuel cell which mainly comprises an anode chamber, an anode, a polymer particle carrier, a proton exchange membrane, an external resistor, a cathode chamber, a cathode and an aeration head, wherein the anode is positioned in the anode chamber; the cathode is positioned in the cathode chamber; the anode chamber is a sealed container, the upper part in the anode chamber is a gas-liquid-solid three-phase separating area formed by a separator, and a fluidized reaction area is arranged under the three-phase separating area; the chamber wall of the anode chamber connected with the cathode chamber is provided with a through hole for leading a proton to enter the cathode chamber through the proton exchange membrane; the proton exchange membrane is arranged on a shifting path from the anode chamber to the cathode chamber; the cathode chamber is an upper opening container; the aeration head positioned in the cathode chamber is connected with an air inlet positioned on the wall of the cathode chamber, and the anode and the cathode are connected with the external resistor by leads to form a loop. The invention can recover chemical energy contained in an organic substrate when carrying out continuous and efficient treatment on wastewater and can be applied to the production practice of wastewater treatment.

Description

technical field [0001] The invention relates to a waste water treatment technology for converting chemical energy into electric energy by using biocatalysis, in particular to a high-efficiency waste water treatment microbial fuel cell. technical background [0002] A microbial fuel cell is a device that uses microorganisms to degrade organic matter to generate electrical energy. At present, most microbial fuel cells use the electrons generated when the anode degrades organic substances to migrate to the cathode along the anode through an external circuit; while the protons generated when the anode degrades organic substances migrate to the cathode through the proton exchange membrane; Oxygen in the air reacts to form water. [0003] The patent number is ZL 200510011855.5, and the invention title is "a single-chamber microbial battery using organic wastewater as fuel". The maximum voltage and power of the external circuit obtained by using starch wastewater and glucose self-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/06H01M8/16C02F3/34
CPCY02E60/527Y02E60/50Y02P70/50
Inventor 杨平黄健盛郭勇
Owner SICHUAN UNIV
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