Membrane bioreactor and operating method thereof for enhanced membrane fouling control

A technology of membrane bioreactor and pollution control, applied in the direction of chemical instruments and methods, water treatment parameter control, sustainable biological treatment, etc., can solve problems such as complex operation, secondary pollution, difficult online cleaning, etc. The effect of increasing the amount, increasing the service life, and reducing the transmembrane pressure difference

Active Publication Date: 2018-08-21
NANJING UNIV YANCHENG ENVIRONMENTAL PROTECTION TECH & ENG RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the problems of complex operation, difficult online cleaning, and possible secondary pollution caused by the use of chemical agents in the existing membrane pollution control technology, the present invention provides a membrane bioreactor and its operation method for strengthening membrane pollution control, and designs a set of automatic machinery The transmission device uses the cleaning components installed at the end of the device to periodically clean the polluted layer on the surface of the flat membrane to achieve the purpose of in-situ control of membrane pollution, increase system water production capacity and backwash cycle, and improve membrane bioreactor treatment efficiency

Method used

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  • Membrane bioreactor and operating method thereof for enhanced membrane fouling control
  • Membrane bioreactor and operating method thereof for enhanced membrane fouling control
  • Membrane bioreactor and operating method thereof for enhanced membrane fouling control

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Embodiment 1

[0026] Such as figure 1 As shown, a membrane bioreactor for strengthening membrane pollution control includes reactor wall 1, membrane element 2, collecting pipe 3, water collecting pipe 4, vacuum gauge 5, suction pump 6, cleaning assembly, air compressor 15, Aeration pipe 16, aeration head 17, water inlet pipe 18 and mud discharge pipe 19; the cleaning assembly includes stainless steel frame 7, stainless steel boom 8, transmission shaft 9, motor 10, programmable logic controller 11, stainless steel connecting pipe 12. Universal joint 13, cleaning member 14, and air compressor 15, wherein the bottom of the stainless steel frame 7 is connected to the upper part of the reactor wall 1; the upper end of the stainless steel boom 8 is fixed on the top of the stainless steel frame 7, and the lower end of the stainless steel boom 8 It is connected with the transmission shaft 9 in the form of a suspension ring; one end of the transmission shaft 9 is connected to the motor 10, and the o...

Embodiment 2

[0034] The structure of the membrane bioreactor for strengthening membrane pollution control is the same as that of Example 1, except that the cleaning head 20 is made of PU collodion.

Embodiment 3

[0036] The structure of the membrane bioreactor for strengthening the control of membrane pollution is the same as that of Example 1, except that the cleaning head 20 is made of water-absorbing fiber gauze.

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Abstract

The invention discloses a membrane fouling control enhancing membrane bioreactor and an operation method thereof, and belongs to the field of environment protection equipment. The membrane fouling control enhancing membrane bioreactor comprises a reactor wall (1), a membrane element (2), a collection pipe (3), a water collection pipe (4), a vacuum meter (5), a suction pump (6), a cleaning component, an air compressor (15), an aerator pipe (16), an aerator head (17), a water inlet pipe (18) and a sludge discharge pipe (19). To solve the problems of operation complexity, difficulty in online washing and possible chemical-agent-caused secondary pollution in the prior art of membrane fouling control, an automatic mechanical transmission device is designed, a cleaning member mounted at the end of the device is used for cleaning fouling layers of flat membrane surfaces periodically, and the objectives of controlling membrane fouling in situ, improving system water generation capability, increasing backwashing cycle and improving membrane reactor processing efficiency are achieved.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and relates to a membrane bioreactor and its operation method for strengthening the control of membrane pollution, in particular to a membrane bioreactor and its operation method for in-situ control of the fouling layer pollution on the surface of a flat membrane . Background technique [0002] Membrane Bioreactor (MBR) technology is a new sewage treatment technology that combines membrane technology and biological treatment technology. It replaces the traditional secondary settling tank with membrane modules to effectively analyze and intercept the mixture after biological treatment, so as to achieve the purpose of mud-water separation. Membrane bioreactor has the advantages of small footprint, good treatment effect, and less residual sludge, but at the same time, it also has problems such as difficult membrane pollution control and cumbersome cleaning of membrane components. Traditio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/02
CPCC02F3/02C02F2209/005Y02W10/10
Inventor 王津南祁超林耀华
Owner NANJING UNIV YANCHENG ENVIRONMENTAL PROTECTION TECH & ENG RES INST
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