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A symmetrical built-in anaerobic membrane bioreactor

An anaerobic membrane biology, built-in technology, applied in anaerobic digestion treatment, biological water/sewage treatment, chemical instruments and methods, etc., can solve the problems of serious membrane pollution, uneven mass transfer, unstable effluent, etc., to achieve The reaction rate is fast, the separation efficiency is improved, and the effect of delaying membrane fouling

Active Publication Date: 2018-01-19
DONGHUA UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to provide a symmetrical built-in anaerobic membrane bioreactor for efficient treatment of organic wastewater to solve the problems of serious membrane pollution, uneven mass transfer and uneven water output in the combination of anaerobic biological treatment process and membrane separation technology. Stability and other issues

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  • A symmetrical built-in anaerobic membrane bioreactor
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Embodiment 1

[0042] Such as figure 1 As shown, the symmetric built-in anaerobic membrane bioreactor of the present invention includes a shell, and the inside of the shell is divided into a packing area I and a membrane area II by a partition, and the packing area I and the film area II are respectively used to realize the hydrolysis acidification stage and hydrogen-producing methane stage. The membrane zone II is symmetrically arranged on both sides of the filler zone I.

[0043] Filler 27 is provided in the filler area I, and a sieve feed water distributor 16 is arranged above the filler 27. Waste water flows through the filler 27 and enters the membrane area II. A baffle plate 24 is provided in the membrane area II. The upper part of the baffle plate 24 is placed vertically, and the included angle θ between the lower part and the vertical direction is 60°. The baffle plate 24 divides the membrane zone II into a circulation zone 23 and a mud-water separation zone 22, the circulation zon...

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Abstract

The invention provides a symmetric built-in anaerobic membrane bioreactor. The symmetric built-in anaerobic membrane bioreactor comprises a shell, the inside of the shell is divided into a packing area and a membrane area by a separator plate, a packing is arranged in the packing area, a sieve mesh feeding water distributor is arranged above the packing, wastewater flows through the packing and then enters the membrane area, a baffle plate is arranged in the membrane area and divides the membrane area into a circulation area and a mud-water separation area, a membrane module is arranged in the mud-water separation area, a perforated aeration tube is arranged under the membrane module, and the upper side of the membrane module is provided with a water outlet tube. The symmetric built-in anaerobic membrane bioreactor has the advantages of simple structure, unkeeping convenience, uniform water distribution, low energy consumption, high treatment efficiency, fast reaction rate, effective delaying of membrane pollution, effective retention of granular sludge, and high integration of an anaerobic reactor and the membrane module.

Description

technical field [0001] The invention relates to a symmetrical built-in anaerobic membrane bioreactor, which belongs to the technical field of wastewater biological treatment. Background technique [0002] According to the "2014 China Environmental Status Bulletin", in 2014, the total discharge of chemical oxygen demand (COD) from industrial sources in wastewater was as high as 3.113 million tons (accounting for 13.57% of the total discharge), and the total discharge of ammonia nitrogen was as high as 232,000 tons (9.73% of total emissions). The main pollutants in industrial sources are high-concentration organic wastewater, which is an important cause of the deterioration of the quality of rivers, lakes and seas, so its effective treatment is imminent. [0003] Since Lettinga et al. invented the second-generation anaerobic reactor represented by the upflow anaerobic sludge bed (UASB) in 1974, the anaerobic granular sludge expanded bed (EGSB) and the anaerobic internal circu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/28
CPCC02F3/2853
Inventor 陈小光李岗胡涛徐正启戴若彬向心怡储潇枭
Owner DONGHUA UNIV
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