Electrochemical biological rotating disc sewage treatment method for aerobic micro-organisms

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: 2018-05-01
JIANGXI NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Electrochemical biological rotating disc sewage treatment method for aerobic micro-organisms
  • Electrochemical biological rotating disc sewage treatment method for aerobic micro-organisms
  • Electrochemical biological rotating disc sewage treatment method for aerobic micro-organisms

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Effect test

Embodiment 1

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

Embodiment 2

[0051] The current-time curve of the enrichment of anaerobic electrogenic microorganisms under aerobic conditions using graphite brush as a carrier is shown in the appendix Figure 7 .

[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 curves of the running aerobic microbial electrochemical biological turntable after enriching anaerobic electrogenic microorganisms and aerobic microorganisms with graphite brushes and nitrogen-phosphorus co-doped graphite brushes as carriers are shown in the appendix Figure 8 . 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 remaining subs...

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Abstract

The invention provides an electrochemical biological rotating disc sewage treatment method for aerobic micro-organisms. The method is characterized in that an aerobic micro-organism membrane and an anaerobic electro-microorganism membrane are grow together on a three-dimensional carrier with oxygen gas reducing and catalyzing performances to form a composite biological membrane which is used for manufacturing a biological rotating disc; the anaerobic electro-microorganism membrane is grown on the inner layer which clings to the carrier, and the aerobic micro-organism membrane grows on the outer layer to package and protect the anaerobic electro-microorganism membrane. The aerobic respiration effect of the aerobic micro-organism membrane, the electrocatalytic oxidation effect and the electrocatalytic reduction effect of the anaerobic electro-microorganisms and the electro-catalytic oxygen gas reducing effect of the carrier are utilized to remove multiple pollutants in water. The electrochemical biological rotating disc sewage treatment method has the advantages as follows: (a) low material and operation cost; (b) a simple process and a small floor space; (c) high decontamination efficiency and multifunctionality; and (d) capability of being fused with a conventional aerobic biological treatment system and the like.

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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IPC IPC(8): C02F3/30C02F3/08
CPCC02F3/005C02F3/082C02F3/301C02F2203/006Y02W10/10
Inventor 陈水亮
Owner JIANGXI NORMAL UNIVERSITY
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