Biological membrane electrode and UASB (Upflow Anaerobic Sludge Blanket) coupled reactor

A biomembrane electrode and reactor technology, applied in biological water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problems of lack of convenient operation

Active Publication Date: 2014-08-06
宜兴市产品质量监督检验所
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Problems solved by technology

The electrochemical-biological coupling process has great application potential in the field of refractory organic wastewater treatment, but there is still a lack of convenient and efficient coupled react

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  • Biological membrane electrode and UASB (Upflow Anaerobic Sludge Blanket) coupled reactor
  • Biological membrane electrode and UASB (Upflow Anaerobic Sludge Blanket) coupled reactor
  • Biological membrane electrode and UASB (Upflow Anaerobic Sludge Blanket) coupled reactor

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Embodiment Construction

[0023] The specific embodiment of the present invention will be described with reference to the accompanying drawings. Such as figure 1 As shown, the biofilm electrode is coupled with the UASB reactor, including a reactor cylinder 1, a biofilm electrode system, an electrochemical test system and a cathode potential test device;

[0024] There is a water inlet 6 at the bottom of the reactor cylinder 1, and a water outlet 5 and a three-phase separator 7 at the top. The reactor cylinder 1 includes a water distribution plate 2 and a biofilm electrode system from bottom to top; the sludge bed area is between the biofilm electrode system and the three-phase separator 7;

[0025] The outlet 5 is formed by an overflow weir, and the outlet channel is connected with the outlet pipe of the reactor cylinder 1.

[0026] The gas-collecting hood of the three-phase separator 7 is connected to the water-sealed bottle 17 and the wet gas flow meter 19 successively through the gas pipeline, and...

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Abstract

The invention relates to a sewage treatment device and particularly relates to a biological membrane electrode and UASB (Upflow Anaerobic Sludge Blanket) coupled reactor comprising a reactor cylinder, a biological membrane electrode system, an electrochemical testing system and a cathode potential testing device, wherein the reactor cylinder internally and sequentially comprises a water distribution plate and the biological membrane electrode system from bottom to top; a sludge bed region is arranged between the biological membrane electrode system and a three-phase separator; the biological membrane electrode system comprises an anode and a cathode; the cathode potential testing device comprises a reference electrode, a salt bridge and sealed electrolyte, wherein the salt bridge is used for communicating the sludge bed region near the cathode and the sealed electrolyte, one end of the reference electrode is connected with the sealed electrolyte, and the other end of the reference electrode is connected with the electrochemical testing system. The biological membrane electrode and UASB coupled reactor provided by the invention is used for promoting the oxidative metabolism of microorganisms to organic pollutants and increasing the COD (Chemical Oxygen Demand) removal rate through the coupling effect of a micro electric field and the microorganisms; meanwhile, the micro electric field can be used for promoting the transfer of electrons in the system and increasing the degradation rate of the pollutants.

Description

technical field [0001] The invention relates to a sewage treatment device, in particular to a reactor coupled with a biofilm electrode and a UASB. Background technique [0002] Since Lettinga and Hulshoff discovered the phenomenon of sludge granulation in the upflow anaerobic sludge bed reaction (UASB) in the 1970s, the research on anaerobic granular sludge has received extensive attention. However, there are also problems such as long start-up time, easy acidification of the system, poor load shock resistance, and insufficient available electron donors, and it is often impossible to completely mineralize toxic and refractory substances. [0003] Electrolytic treatment technology does not require additional chemicals, has the advantages of less land occupation, simple and flexible operation, etc. As a mature water treatment technology, it is widely used in the treatment of electroplating wastewater, printing and dyeing wastewater, pharmaceutical wastewater and other fields. ...

Claims

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Application Information

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IPC IPC(8): C02F3/28C02F3/34
Inventor 戚姣琴
Owner 宜兴市产品质量监督检验所
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