Microbial fuel cell coupled whole-course autotrophic dynamic membrane reactor denitrification device and method

A fully self-supporting, fuel cell technology, applied in chemical instruments and methods, biological water/sewage treatment, water pollutants, etc., can solve problems such as cost membrane pollution, reduce treatment costs, have good compatibility, and save organic carbon source effect

Pending Publication Date: 2022-04-12
UNIV OF JINAN
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Problems solved by technology

However, the biggest application bottleneck of MBR is cost and membrane fouling.

Method used

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  • Microbial fuel cell coupled whole-course autotrophic dynamic membrane reactor denitrification device and method

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Embodiment Construction

[0016] The present invention will be described below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited to the following embodiments.

[0017] The continuous flow MFC coupled fully autotrophic dynamic membrane reactor is used to start and run the high ammonia nitrogen wastewater treatment process, as shown in the attached figure 1 As shown, the reactor device includes an MFC module (1), a whole autotrophic biofilm denitrification main reactor (2) and a dynamic membrane module (3). Wherein, the simulated waste water enters the MFC component (1) through the water inlet pump (20). The MFC component is cut and assembled by plexiglass plate, the length*width*height is 5cm*5cm*3cm, the built-in carbon felt electrode (5), the length*width*thickness is 3*3*0.1cm, the electricity production of MFC anode inoculation In the early stage, the bacteria were domesticated for a long time by using 1g of sodium acetate as the substrate of th...

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Abstract

The invention discloses a denitrification device and method for coupling a microbial fuel cell (MFC) with a whole-course autotrophic dynamic membrane reactor, and belongs to the technical field of biological sewage treatment. The device comprises an MFC assembly, a whole-course autotrophic bio-membrane reactor, an aeration control system and a dynamic membrane separation assembly, the MFC assembly is used for inlet water carbon removal pretreatment and power generation, the whole-course autotrophic bio-membrane reactor realizes total nitrogen efficient treatment, and the dynamic membrane separation assembly realizes mud-water separation. The method comprises the following steps: controlling the flow direction of wastewater, controlling system parameters and controlling water quality parameters, and finally realizing the synergistic effect of electrogenesis bacteria, ammonia oxidizing bacteria and anaerobic ammonia oxidizing bacteria to realize efficient water treatment. The device integrates the advantages of the MFC, the whole-course autotrophy and the membrane bioreactor, has the advantages of saving the aeration rate, being low in sludge yield, high in load resistance and the like, realizes electrochemical recovery of a carbon source, and is particularly suitable for treating high-ammonia-nitrogen industrial wastewater with a low carbon-nitrogen ratio.

Description

technical field [0001] The invention belongs to the technical field of sewage biological treatment, and in particular relates to a nitrogen removal device and method for a microbial fuel cell coupled with a fully autotrophic dynamic membrane reactor. Background technique [0002] At present, the traditional biological nitrification and denitrification methods have many problems such as long process flow, high power consumption, and high infrastructure investment. The whole-process autotrophic denitrification process based on integrated anaerobic ammonium oxidation is a new type of autotrophic denitrification process that has been widely concerned in recent years. It has the advantages of saving energy, reducing sludge production and operating costs. The key to realize the whole autotrophic denitrification process lies in the synergistic effect of ammonia oxidizing bacteria (AOB) and anammox bacteria (AnAOB), but anammox bacteria are autotrophic anaerobic bacteria with slow g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/00C02F101/16C02F101/30
Inventor 司光超魏东闫涛赵传富
Owner UNIV OF JINAN
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