Anaerobic membrane bioreactor and its application in sewage treatment

An anaerobic membrane biological and sewage treatment technology, which is applied in biological water/sewage treatment, anaerobic digestion treatment, biological treatment devices, etc., can solve the problems that sulfur-containing sewage is difficult to treat, and the type and amount of flocculants are not easy to control. , to prolong the membrane fouling cycle, slow down the rate of occurrence, and promote the growth of particle size

Active Publication Date: 2021-05-04
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to provide an anaerobic membrane bioreactor and its application in sewage treatment in view of the difficulty in controlling the type and amount of traditional flocculants and the difficulty in treating sulfur-containing sewage.

Method used

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  • Anaerobic membrane bioreactor and its application in sewage treatment
  • Anaerobic membrane bioreactor and its application in sewage treatment
  • Anaerobic membrane bioreactor and its application in sewage treatment

Examples

Experimental program
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Embodiment

[0058] (1) Prepare two zero-priced iron plates, 90cm long, 5cm wide, and 0.3cm thick. First soaked in 0.1% NaOH, then pickled with 5% hydrochloric acid, then rinsed with water to remove surface oil, rust and other impurities, and then dried for later use.

[0059] (2) Prepare the anaerobic membrane bioreactor device. The reactor adopts a flat membrane module, the membrane material is polyvinylidene fluoride, and the membrane pore size is 0.1 μm.

[0060] (3) No zero-valent iron plate is set in the anaerobic membrane bioreactor, and the anaerobic sludge is inoculated in the anaerobic membrane bioreactor device, and domesticated. During the domestication process, simulated domestic sewage was used, and the hydraulic retention time was 10 h. The temperature of the reactor was controlled to about 35°C with an insulating belt. 2 / h). Monitor gas production, effluent chemical oxygen demand, and transmembrane pressure difference indicators during the acclimation process.

[0061]...

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Abstract

The invention discloses an anaerobic membrane bioreactor, which comprises a casing, a hollow membrane body and an iron-based material, the hollow membrane body and the iron-based material are arranged in the inner cavity of the casing, and the casing The body is provided with a sewage inlet and a water purification outlet. The hollow membrane body includes a membrane shell and a closed water purification chamber surrounded by the membrane shell. The water purification chamber communicates with the water purification outlet through a pipe body. The iron-based material is arranged outside the hollow membrane body, the iron in the iron-based material is zero-valent iron, and the iron-based material is a passive iron-based material. The invention also discloses the application of an anaerobic membrane bioreactor.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an anaerobic membrane bioreactor and its application in sewage treatment. Background technique [0002] Anaerobic membrane bioreactor is a water treatment process that combines high-efficiency anaerobic biological technology and membrane separation technology. It has the advantages of high effluent quality, small footprint, energy recovery, and less residual sludge. It has developed rapidly in recent years. . However, the application of this technology still faces some challenges. [0003] First of all, membrane fouling is an important bottleneck limiting the application of anaerobic membrane bioreactor technology. During the membrane filtration process, the membrane pollutants in the reactor sludge mixture will gradually block the membrane pores and form membrane fouling. With the formation of membrane fouling, the water flux of the reactor decreases, and membrane cl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/28C02F101/30C02F101/10
CPCC02F3/005C02F3/2853C02F3/2866C02F2101/101C02F2101/30C02F2203/006C02F2303/14
Inventor 黄霞张硕梁鹏张潇源
Owner TSINGHUA UNIV
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