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Self-cleaning submerged tubular membrane bioreactor

A biological reaction device and tubular membrane technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve problems such as reducing system operating efficiency and affecting continuous operation of the system, achieving Avoid complex operation process, low power consumption, low transmembrane pressure effect

Inactive Publication Date: 2013-12-11
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this cleaning method is ectopic cleaning, which affects the continuous operation of the system and reduces the operating efficiency of the system.

Method used

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  • Self-cleaning submerged tubular membrane bioreactor
  • Self-cleaning submerged tubular membrane bioreactor
  • Self-cleaning submerged tubular membrane bioreactor

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings, but the present invention is not limited thereto.

[0020] see figure 1 , The MBR device provided by the present invention is a self-cleaning submerged tubular membrane bioreactor, which consists of: a housing 1, a water inlet 2, a mud discharge port 3, a gas disperser 4, a bracket 5, and a tubular membrane module 6 , a diversion cover 7, a carrier collector 8, and a particle carrier 9; wherein: the bottom of the device is a carrier collector 8, which is provided with a water inlet 2 and a mud discharge port 3, and a gas diffuser 4 is installed above the water inlet 2. The tube-type membrane module 6 is fixed above the gas diffuser 4 through the bracket 5 in the device, and the guide cover 7 is installed under the tube-type membrane module 6 . In the submerged tubular membrane bioreactor of the present invention, a particle carrier 9 is added, the carrier is a macroporo...

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Abstract

The invention belongs to the field of waste water processing, and relates to a self-cleaning submerged tubular membrane bioreactor. The self-cleaning submerged tubular membrane bioreactor comprises a shell (1) and an inverted cone-shaped carrier collecting device (8) disposed at the bottom of the shell (1); a water inlet (2) and a mud discharging opening (3) are respectively disposed at the bottom sharp-nose portion and the side face of the carrier collecting device (8); a gas disperser (4) is disposed above the water inlet (2); a tubular membrane assemble (6) is fixedly disposed above the gas disperser (4) via a support (5); a flow guiding cover (7) is fixedly disposed between the tubular membrane assemble (6) and the gas disperser (4); and a particle carrier (9) is loaded in the interior of the shell (1). The self-cleaning submerged tubular membrane bioreactor has the advantages that: through friction of the particle carrier to the wall of the membrane, membrane face filter-cake-layer pollution formed in filtering process is alleviated, transmembrane pressure difference is reduced and backwashing frequency is minimized; and the membrane bioreactor is high in processing efficiency, and high in total nitrogen removal rate because of existence of synchronous nitration and denitrification processes.

Description

technical field [0001] The invention belongs to the field of wastewater treatment, in particular to the field of membrane water treatment technology devices, and in particular relates to a tubular membrane bioreactor. Background technique [0002] Membrane Bio-Reactor (MBR) is a sewage treatment process developed by combining membrane separation technology with biological principles. It uses a membrane separation device to effectively intercept microorganisms in a biochemical reaction tank. Compared with conventional wastewater treatment processes, MBR has the advantages of good solid-liquid separation effect, stable effluent quality, low sludge production, high biomass in the bioreactor, and small footprint. However, membrane fouling, an unavoidable problem in pressure-driven membrane processes, severely limits the applications of MBRs. Severe membrane fouling not only reduces the operating efficiency of the system, but also shortens the service life of the membrane compo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/00
Inventor 张宏伟王亮余伟明董冰洁赵斌张朝晖李明德张贺
Owner TIANJIN POLYTECHNIC UNIV
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