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Anaerobic membrane bioreactor and application thereof in sewage treatment

A technology for anaerobic membrane biology and sewage treatment, which is applied in biological water/sewage treatment, anaerobic digestion treatment, biological treatment equipment, etc. It can solve the problems that the type and amount of flocculant are not easy to control, and sulfur-containing sewage is difficult to treat. , to achieve the effect of prolonging the cycle of membrane fouling, slowing down the occurrence speed, and promoting the growth of particle size

Active Publication Date: 2019-12-13
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 application thereof in sewage treatment
  • Anaerobic membrane bioreactor and application thereof in sewage treatment
  • Anaerobic membrane bioreactor and application thereof in sewage treatment

Examples

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Embodiment

[0058] (1) Prepare two zero-valent iron plates with a length of 90 cm, a width of 5 cm, and a thickness of 0.3 cm. First soak in 0.1% NaOH, then pickle with 5% hydrochloric acid, then rinse with water to remove surface oil, rust and other impurities, and dry it for later use.

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

[0060] (3) First, do not install zero-valent iron plates in the anaerobic membrane bioreactor, inoculate anaerobic sludge in the anaerobic membrane bioreactor device, and conduct domestication. Simulated domestic sewage is used in the domestication process, the hydraulic retention time is 10h, the temperature of the reactor is controlled to about 35℃ with an insulation belt, the constant flux mode is adopted in the operation process, and the flux is 15L / (m 2 / h). During the domestication process, the indicators of gas prod...

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Abstract

The invention discloses an anaerobic membrane bioreactor. The anaerobic membrane bioreactor comprises a shell, a hollow membrane body and an iron-based material, the hollow membrane body and the iron-based material are arranged in an inner cavity of the shell; wherein a sewage inlet and a purified water outlet are formed in the shell; the hollow membrane body comprises a membrane shell and a closed purified water cavity defined by the membrane shell, the purified water cavity is communicated with the purified water outlet through a pipe body, the iron-based material is arranged outside the hollow membrane body, iron in the iron-based material is a zero-valent elemental iron, and the iron-based material is a passive iron-based material. The invention also discloses application of the 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 couples high-efficiency anaerobic biotechnology and membrane separation technology. It has the advantages of high effluent water quality, small floor space, recovered energy, and less surplus 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 restricting the application of anaerobic membrane bioreactor technology. In the process of membrane filtration, the membrane pollutants in the reactor sludge mixture will gradually block the membrane pores and form membrane pollution. With the formation of membrane fouling, the water flux of the reactor decreases, and membrane cleanin...

Claims

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Application Information

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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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