Pipe type lifting-flow air cathode microbiological fuel cell

An air cathode and fuel cell technology, applied in the field of electrochemical energy, to achieve the effects of reducing basic cost, reducing ohmic internal resistance and activation internal resistance, and improving processing capacity and operability

Inactive Publication Date: 2009-05-13
HARBIN INST OF TECH
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AI Technical Summary

Problems solved by technology

[0010] There are no reports on continuous flow power generation in upflow microbial fuel cells using air as the cathode electron acceptor without PEM or CEM

Method used

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  • Pipe type lifting-flow air cathode microbiological fuel cell
  • Pipe type lifting-flow air cathode microbiological fuel cell
  • Pipe type lifting-flow air cathode microbiological fuel cell

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0027] combine Figure 1-Figure 3 , In the present embodiment, the tubular upflow air cathode microbial fuel cell (TUAMFC) consists of a cylindrical plexiglass tube with a diameter of 3 cm and a height of 13.5 cm, with a wall thickness of 0.2 cm and a total volume of 95 mL. A feed inlet is set at the bottom of the battery, and a water outlet is set at the top. Small holes with a diameter of 2.0mm are evenly drilled on the tube wall of the anode area, and the protons are transmitted through these holes. The total area of ​​the holes is 60cm 2 . The tube is filled with granular activated carbon (diameter 3mm ~ 5mm) as the battery anode. The solution volume in the anode zone was 55 mL. The anode 1 is inserted into a carbon rod (diameter 1 cm, length 5 cm) to export electrons. Cathode 2 is made of carbon cloth (30% waterproof treatment, 10cm * 10cm,...

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Abstract

The invention provides a tubular up-flow air cathode microbial fuel cell. The tubular up-flow air cathode microbial fuel cell is composed of a cylindrical organic glass tube, a feed inlet is arranged at the bottom part of the cell, a water outlet is arranged at the top part, holes for facilitating the transfer of protons and ions between a cathode and an anode are evenly drilled on the tube wall, an anode region which is filled with granular activated carbon that is taken as the cell anode is arranged in the tube, the volume of solution in the anode region is 55mL, a carbon rod which leads out electrons is inserted in the anode, the cathode is constituted by tightly coating carbon fabric at the outside of the anode region, a layer of C/Pt powder is coated at the inner surface of the cathode, wherein, the anode is connected with the cathode by a copper wire. The tubular up-flow air cathode microbial fuel cell not only has the advantages of the microbial fuel cell configuration, but also combines the up-flow activated carbon anode and the film-free air cathode into a whole body, thereby leading the distance between the two electrodes to be as small as possible; meanwhile, the anode adopts the ordinary granular carbon and omits film material.

Description

(1) Technical field [0001] The invention relates to the technical field of electrochemical energy, in particular to a biofuel cell used for generating electricity from organic matter. (2) Background technology [0002] With the rapid development of the global economy, the world's energy consumption has increased sharply, and energy reserves have continued to decrease. In addition, the current environmental pollution is becoming more and more serious, and the world's annual energy consumption for wastewater treatment is huge, which brings a heavy burden to social development. . Therefore, on the one hand, it is necessary to seek new clean energy to replace disposable energy, and on the other hand, it is necessary to develop new technologies to recover energy from wastewater to reduce the cost of wastewater treatment. [0003] Microbial fuel cell is a new type of bioelectrochemical process, because it can directly recover electrical energy from carbohydrates, so it has become...

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 张金娜赵庆良尤世界姜君秋
Owner HARBIN INST OF TECH
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