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Method for microbe fuel battery and power generation by using straw stalk

A fuel cell and microorganism technology, applied in biochemical fuel cells and other directions, can solve the problems of non-direct utilization of straw solids and ineffective utilization of crop straws, and achieve the effects of alleviating the energy crisis, saving energy consumption and saving costs.

Inactive Publication Date: 2008-05-28
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to alleviate the energy crisis, solve the problem that crop straws are not effectively utilized, especially the problem that straw solids are not directly utilized in MFC, and provide a microbial fuel cell and a method of using straw to generate electricity

Method used

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  • Method for microbe fuel battery and power generation by using straw stalk
  • Method for microbe fuel battery and power generation by using straw stalk
  • Method for microbe fuel battery and power generation by using straw stalk

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specific Embodiment approach 1

[0011] Specific embodiment one: (referring to Fig. 1) the microbial fuel cell of the present embodiment is made up of container 1, catalytic anode 2, titanium wire 3, anode wire 4, air cathode 5, titanium sheet 6, cathode wire 7, washer 8, cathode The cover 11 and the sealing cover 13 are composed; the section shape of the container 1 is a sideways "convex" shape, the small end of the container 1 is open, and the large end is closed; the top of the large end of the container 1 is closed with a sealing cover 13, and the sealing cover 13 is provided with an inlet The feed opening 10 and the small hole 12, the upper part of the titanium wire 3 is fixedly connected with the small hole 12, the lower end of the titanium wire 3 is fixedly connected with the upper end of the catalytic anode 2, the bottom of the large end of the container 1 is provided with a discharge port 9, and the open end of the container 1 Gasket 8, air cathode 5 and cathode cover 11 are arranged in sequence and t...

specific Embodiment approach 2

[0013] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the catalytic anode 2 is made of any one of carbon paper, carbon cloth, carbon fiber, carbon nanotube, glassy carbon, graphite felt, particle graphite, nickel foam and stainless steel plate made. Other structures and connections are the same as in the first embodiment.

specific Embodiment approach 3

[0014] Embodiment 3: The difference between this embodiment and Embodiment 1 is that the air cathode 5 is made of any one of carbon paper, carbon cloth, and graphite; and the air cathode 5 is loaded with 0.10-0.35 mg / cm 2 Pt catalyst. Other structures and connections are the same as in the first embodiment.

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Abstract

A microbiological fuel cell and a method for generating electricity by use of straws relate to a fuel cell and a method for generating electricity. The invention solves the problem that crop straws are not used efficiently, and particularly straw solids are not directly used in MFC. The microbiological fuel cell of the invention is composed of a container, catalytic anodes, anode wires, air cathodes, cathode wires, a cathode cover and a sealing cover. The method of the invention includes the steps of the pretreatment of the straws, the detoxifying treatment of the straws to obtain a straw solid substrate and a straw liquid substrate, the start-up of the cell, the treatment of the straw solid substrate or the straw liquid substrate. When the electricity is generated by the invention by using the straw solid substrate, the maximum power of the cell reaches 502mW / m<2>, and the degradation rate is about 45percent. When the electricity is generated by using the straw liquid substrate, the maximum power reaches 1288m W / m<2>, and the degradation rate of COD is 60 percent. The invention has the advantages of simple technology, convenient operation, high efficiency, no pollution, reduction of cost and relief of the energy crisis, and the straws in rural areas can be used efficiently.

Description

technical field [0001] The invention relates to a fuel cell and a method for generating electricity. Background technique [0002] With the imbalance of energy supply and demand, people pay more attention to the development of follow-up energy and emphasize the diversification of energy forms. As early as 1912, the British botanist Mark Bit first discovered that the bacterial culture solution can generate electric current, so he used platinum as an electrode, put it into the culture solution of Escherichia coli and common yeast, and successfully produced The world's first microbial fuel cell (MFC). However, there has been no new breakthrough in the research on MFC. MFC research did not progress until people tried to use organic-rich sewage to generate electricity. However, the research work still stays in the use of domestic sewage to generate electricity, and there is little research on MFC using other biomass, such as crop straw as a substrate. Crop straw usually refer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/16
CPCY02E60/527Y02E60/50
Inventor 冯玉杰王赫名于艳玲王鑫
Owner HARBIN INST OF TECH
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