A kind of aerobic microbial electrochemical biological turntable sewage treatment method

A sewage treatment method and aerobic microorganism technology, applied in the field of aerobic microbial electrochemical biological turntable sewage treatment, can solve the problems of high cost and multiple processes, and achieve the effects of low material and operating costs, simple process and simple treatment process

Active Publication Date: 2020-10-16
JIANGXI NORMAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] Aiming at the disadvantages of high cost and multiple processes of the traditional microbial sewage treatment technology and the bottleneck problem encountered by the new METs in the actual sewage treatment application, the present invention provides an aerobic microbial electrochemical biological turntable sewage treatment technology

Method used

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  • A kind of aerobic microbial electrochemical biological turntable sewage treatment method
  • A kind of aerobic microbial electrochemical biological turntable sewage treatment method
  • A kind of aerobic microbial electrochemical biological turntable sewage treatment method

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Experimental program
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Effect test

Embodiment 1

[0049] The current-time curves of the enrichment of anaerobic electrogenic microorganisms under anaerobic conditions using graphite brushes and nitrogen-phosphorus co-doped carbon-modified graphite brushes as carriers are shown in the appendix Figure 6 .

Embodiment 2

[0051] The current-time curves of enriching anaerobic electrogenic microorganisms under aerobic conditions using graphite brushes as carriers Figure 8 .

[0052] Under aerobic conditions, anaerobic electrogenic microorganisms grown on graphite brush supports can produce 0.7mA / cm -2 current.

Embodiment 3

[0054] The potential-time curve of the running aerobic microbial electrochemical biological turntable is shown in the appendix after enriching anaerobic electrogenic microorganisms and aerobic microorganisms with graphite brushes and graphite brushes modified with nitrogen and phosphorus co-doped carbon. Figure 7 . When the aerobic microbial electrochemical bio-turntable operates under aerobic conditions, aerobic respiration metabolism and two electrochemical reactions can occur simultaneously on the bio-turntable, including the oxidation of organic matter catalyzed by anaerobic electrogenic microorganisms and the oxygen catalyzed by oxygen reduction carriers. reduction reaction. When the substrate is sufficient, the dissolved oxygen is consumed by the aerobic metabolism of the aerobic biofilm, the diffusion to the inner layer is limited, and the oxygen reduction reaction rate decreases; while the anaerobic electrogenic microorganisms on the biological turntable ingest the re...

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Abstract

The invention provides an aerobic microbial electrochemical biological turntable sewage treatment method. The method is to use the aerobic microbial film and the anaerobic electricity-producing microbial film to grow together on a three-dimensional carrier with oxygen reduction catalytic performance to form a composite biofilm. A biological turntable is made; wherein, the anaerobic electrogenic microbial film grows on the inner layer close to the carrier, while the aerobic microbial film grows on the outer layer, wrapping and protecting the anaerobic electrogenic microbial film. It utilizes the aerobic respiration of the aerobic microbial membrane, the electrocatalytic oxidation and electrocatalytic reduction of anaerobic electricity-producing microorganisms, and the electrocatalytic oxygen reduction of the carrier itself to remove various pollutants in water at the same time. It has the advantages of (a) low material and operating costs; (b) simple process and small footprint; (c) high decontamination efficiency, multi-functionality and (d) can be integrated with traditional aerobic biological treatment systems, etc. .

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an aerobic microbial electrochemical biological turntable sewage treatment technology. Background technique [0002] Water is the basis for the survival of all living things and human beings. With the acceleration of urbanization and industrialization in our country, the scope and degree of water pollution are expanding and deepening, which has become the main factor restricting the sustainable development of society, economy and environment. In order to solve the problem of water pollution, sewage treatment technology came into being. [0003] Commonly used municipal and industrial wastewater treatment technologies mainly include two processes: (1) aerobic biological treatment to remove waste organic matter (chemical oxygen demand, COD) in sewage, such as activated sludge method, biofilm method, etc.; (2) Anaerobic denitrification to remove nitrogen and anaerobic dige...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/30C02F3/08
CPCC02F3/005C02F3/082C02F3/301C02F2203/006Y02W10/10
Inventor 陈水亮
Owner JIANGXI NORMAL UNIV
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