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Membrane biological electrochemical reactor device with high-quality effluent and low membrane pollution

A technology of bioelectrochemistry and reactor, applied in the direction of water pollutants, chemical instruments and methods, water/sewage multi-stage treatment, etc., can solve the problems of membrane pollution, poor effect of industrial wastewater, and ineffective nitrogen removal, etc., to achieve Simple operation, enhanced denitrification effect of sewage, and effect of slowing down membrane fouling

Active Publication Date: 2013-08-14
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of serious membrane pollution in existing membrane bioreactors, poor treatment effect of industrial wastewater, and inconspicuous nitrogen removal effect, and provide a membrane bioelectrochemical reaction with high-quality effluent and low membrane pollution device

Method used

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  • Membrane biological electrochemical reactor device with high-quality effluent and low membrane pollution
  • Membrane biological electrochemical reactor device with high-quality effluent and low membrane pollution
  • Membrane biological electrochemical reactor device with high-quality effluent and low membrane pollution

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specific Embodiment approach 1

[0024] Specific embodiment one: a kind of membrane bioelectrochemical reactor device of high quality effluent and low membrane fouling of the present embodiment, it comprises water tank 1, influent peristaltic pump 2, two MFC anode chambers 5, stainless steel plate membrane 6, Wire 4, external resistance 3, aeration head 7, gas flow meter 8, air compressor 9, vacuum pressure gauge 10, water outlet peristaltic pump 11, return peristaltic pump 12 and MBR reactor 13; wherein, the two MFC The anode chamber 5 is composed of a water inlet 5-1, a titanium wire 5-2, an anode material 5-3, a water outlet 5-4, a reactor shell 5-5 and a cation exchange membrane 5-6; the flat membrane 6 It is composed of diaphragm 6-1, cavity 6-2, water outlet 6-3 and titanium wire 6-4;

[0025] The MBR reactor 13 is formed between the two MFC anode chambers 5, and the bottom of the MBR reactor 13 is sealed; the flat film 6 is arranged in the MBR reactor 13 formed by the two MFC anode chambers 5, and the ...

specific Embodiment approach 2

[0034] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the anode material 5-3 is made of carbon brush, graphite particles or carbon cloth. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0035] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the material of the anode material 5-3 is a carbon brush, and the carbon brush is twisted from carbon fiber wire and titanium wire. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to a membrane biological electrochemical reactor device with high-quality effluent and low membrane pollution, relates to the field of sewage treatment and is used for solving the problems of serious MBR (Membrane Bio-Reactor) membrane pollution, low nitrogen removal rate, poor treatment effect on sewage which is difficult to degrade and the like. The reactor device comprises a water box, a water-inflow peristaltic pump, an MFC (Microfunction Circuit) anode chamber, a stainless steel flat plate membrane, an MBR reactor, a conducting wire, an external resistor, an aeration head, an air flowmeter, an air compressor, a vacuum pressure gauge, a backflow peristaltic pump and an effluent peristaltic pump. As the reactor device is used, the sewage firstly enters the anaerobic MFC anode, and anaerobic electricity generating microorganisms perform hydrolytic acidification pretreatment; then the sewage enters the MBR, and the partial effluent are enabled to flow back into the anaerobic anode chamber, so that the denitrification of the sewage is further performed. Therefore, the energy source recovery and in-situ utilization of the electric energy performed by the MFC, the effective control of the membrane pollution and the efficient treatment of the sewage are realized. As a result, the reactor device is obvious in economic and environmental benefits. The reactor device provided by the invention is applied to the field of the sewage treatment.

Description

technical field [0001] The invention relates to the technical field of membrane bioreactors. Specifically, it involves the use of electric energy generated by microbial fuel cells to form a micro-electric field between the membrane and the anode, thereby effectively slowing down membrane fouling. Background technique [0002] Membrane bioreactor combines activated sludge method with membrane separation technology, and is mainly used for domestic sewage and industrial sewage treatment and reuse. Compared with traditional biological treatment methods, it has good solid-liquid separation effect, high removal rate, and Small area and other advantages, but the membrane fouling seriously affects the normal operation of MBR, so it has become the bottleneck of the wide application of MBR. At the same time, the traditional aerobic MBR has poor treatment effect on refractory industrial wastewater, and has no obvious denitrification effect. [0003] Since most pollutants in water trea...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F101/38
Inventor 田禹李俐频李慧苏欣颖
Owner HARBIN INST OF TECH
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