Microbial desalting cell (MDC)

A microbial desalination and battery technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve difficult problems such as high energy consumption, and achieve the effect of reducing internal resistance

Inactive Publication Date: 2012-01-25
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the above-mentioned technologies all have the problem of high energy consumption. Under the background of increasingly scarce energy, the problem of water resources will become more difficult

Method used

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  • Microbial desalting cell (MDC)
  • Microbial desalting cell (MDC)

Examples

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Embodiment Construction

[0017] The invention will be further described below in conjunction with the accompanying drawings, but the invention is not limited to the following embodiments.

[0018] The experimental methods used in the following examples are conventional methods unless otherwise specified. The materials and reagents used in the following examples can be obtained from commercial sources unless otherwise specified.

[0019] The microbial desalination battery provided by the present invention comprises an anode chamber 1, a cathode chamber 3 and a desalination chamber 2; an anion exchange membrane 7 is arranged between the anode chamber 1 and the desalination chamber 2, and a cation exchange membrane is arranged between the cathode chamber 3 and the desalination chamber 2 8. Anion exchange membrane 7 and cation exchange membrane 8 are non-toxic industrial electrodialysis ion exchange membranes with a permeability of 90%, with a thickness of 0.2 mm and a burst strength of 0.3 MPa; the desal...

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Abstract

The invention discloses a microbial desalting cell (MDC) which comprises an anode chamber, a desalting chamber and a cathode chamber, wherein a negative membrane is arranged between the anode chamber and the desalting chamber; a positive membrane is arranged between the desalting chamber and the cathode chamber; an anode is arranged in the anode chamber, and an electrogenesis microbial membrane is attached to the anode; a cathode is arranged in the cathode chamber; the anode and the cathode are communicated through a wire; and a positive-negative ion exchange resin is arranged in the desalting chamber. On the basis of the configuration of the traditional MDC, the MDC provided by the invention refers to the working principle of packed bed electrodialysis, and the positive-negative ion exchange resin is added into the desalting chamber to adsorb positive and negative ions, thereby implementing desalting; and meanwhile, the desorption regeneration of the resin and the detachment of the positive and negative ions are implemented under the action of the internal electric field of the MDC, thereby reducing the internal resistance of the MDC in the aspect of effect, and enhancing the efficiency of the sewage purification, electricity generation and desalting process.

Description

technical field [0001] The invention relates to a microbial desalination battery. Background technique [0002] Both water resources and energy are important resources for human survival. With the rapid development of industrial society and rapid population growth, human demand for these two resources is increasing day by day, and the supply crisis is becoming increasingly prominent. On the one hand, the easily available fresh water resources on the earth are part of rivers, lakes and groundwater on land, accounting for less than 1% of the world's total fresh water resources; on the other hand, the world's annual polluted fresh water accounts for about 14% of the total flow The above has further exacerbated the problem of water shortage. In order to expand the source of fresh water, people use techniques such as distillation, electrodialysis, and reverse osmosis to desalinate seawater. In order to resolve the problem of water pollution, people have tried various sewage puri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34
Inventor 黄霞梁鹏陈熹左魁昌
Owner TSINGHUA UNIV
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