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A separate anaerobic ceramic membrane bioreactor that can effectively alleviate membrane fouling

A bioreactor and reactor technology, applied in anaerobic digestion treatment, biological water/sewage treatment, chemical instruments and methods, etc., can solve the problems of serious membrane pollution, high cleaning and renewal costs, etc., and increase shear force. , the effect of increasing the flow rate

Active Publication Date: 2020-08-25
BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention aims to solve the problems of severe membrane pollution, high cost of cleaning and renewal in the existing anaerobic technology combined with membrane separation technology, and provides a separate anaerobic ceramic membrane bioreactor that can effectively alleviate membrane pollution

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  • A separate anaerobic ceramic membrane bioreactor that can effectively alleviate membrane fouling
  • A separate anaerobic ceramic membrane bioreactor that can effectively alleviate membrane fouling

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specific Embodiment approach 1

[0017] Specific implementation mode one: combine figure 1 Describe this embodiment, this embodiment comprises water inlet pipe (1), reactor shell (2), three-phase separator (4), reactor outlet pipe (5), reactor return pipe (6), gas collecting pipe ( 7), water inlet pump (8), membrane group return pipe (12), reactor return peristaltic pump (15), membrane group return peristaltic pump (16) and ceramic membrane module, the bottom of the reactor shell (2) is provided with The reactor water inlet (2-1), the side wall of the reactor shell (2) is provided with a sampling port (3), and the three-phase separator (4) is arranged in the sedimentation area in the reactor shell (2) , one end of the gas collecting pipe (7) is connected with the three-phase separator (4), the other end of the gas collecting pipe (7) is arranged outside the reactor shell (2), and the upper part of the reactor shell (2) is provided with The reactor water outlet (2-2) and the reactor return port (2-3), and the...

specific Embodiment approach 2

[0020] Specific implementation mode two: combination figure 1 Describe this embodiment, this embodiment is that the ceramic diaphragm (11) is a one-piece flat ceramic membrane, and the material is Al 2 o 3 , with a pore size of 0.1 μm. This material has a wider application range and a slower membrane fouling rate than organic membranes such as PVDF used in common anaerobic membrane bioreactors. Other components and connections are the same as those in the first embodiment.

[0021] In this embodiment, the sewage to be treated and the backflow sewage separated by the three-phase separator 4 flow into the reactor from the bottom of the reactor shell 2 through the water inlet pipe 1, and the reaction is made under the joint action of the backflow sewage and anaerobic digestion gas. The anaerobic granular sludge in the zone (the zone inside the reactor shell 2) fully contacts with the sewage to perform anaerobic digestion. After the anaerobic digestion is completed, it is sepa...

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Abstract

The invention provides a split type anaerobic ceramic membrane bioreactor capable of relieving membrane pollution effectively and relates to a split type anaerobic ceramic membrane bioreactor. The split type anaerobic ceramic membrane bioreactor can effectively solve the problems that membrane pollution is serious, cleaning and replacing costs are high and the like of the conventional anaerobic process and membrane separation combined technology. The split type anaerobic ceramic membrane bioreactor capable of relieving membrane pollution effectively is provided with an anaerobic bioreactor anda ceramic membrane assembly, wherein the anaerobic bioreactor comprises a reactor outer wall, a three-phase separator, a water inlet pipe, a water outlet pipe I, a backflow pipe I, a gas collecting pipe and a sampling port; the ceramic membrane assembly comprises a water inlet, a reactor wall, a ceramic membrane, a U-shaped support, the water inlet pipe, a water outlet pipe II and a backflow pipeII. The anaerobic membrane bioreactor is combined with the ceramic membrane, municipal domestic sewage is treated effectively, inflow water can continuously wash the membrane surface by means of smaller thickness of the ceramic membrane assembly and the backflow action of the anaerobic bioreactor, and the membrane pollution rate is reduced effectively.

Description

technical field [0001] The invention relates to a split anaerobic membrane bioreactor, in particular to a split anaerobic ceramic membrane bioreactor capable of effectively alleviating membrane pollution. Background technique [0002] At present, the urban domestic sewage treatment processes commonly used at home and abroad are mainly divided into two categories, aerobic process and anaerobic process. Compared with the traditional aerobic process, the anaerobic process is more and more widely used in urban domestic sewage treatment because of its low sludge output, low energy consumption and energy gas methane generation. In recent years, the anaerobic membrane bioreactor (AnMBR), which combines anaerobic biological treatment with membrane modules, has gradually entered people's field of vision. When AnMBR is used to treat domestic sewage, the interception function of the membrane module can be used to avoid the loss of sludge even under high hydraulic load, thus ensuring e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/28
CPCC02F3/2853C02F2303/16
Inventor 高大文刘莉莉
Owner BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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