Integral anaerobic dynamic membrane bioreactor and method of operation

An anaerobic membrane biological and dynamic membrane technology, applied in the field of water treatment, can solve the problems of high energy consumption of circulating pumps, difficult to clean, and high membrane cost, and achieve the effects of reducing operating costs, increasing membrane flux, and resisting impact.

Inactive Publication Date: 2009-05-13
SHANDONG UNIV
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Problems solved by technology

[0003] Due to the use of microfiltration and ultrafiltration membranes, traditional anaerobic membrane bioreactors have disadvantages such as high membrane cost, easy clogg...

Method used

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  • Integral anaerobic dynamic membrane bioreactor and method of operation
  • Integral anaerobic dynamic membrane bioreactor and method of operation
  • Integral anaerobic dynamic membrane bioreactor and method of operation

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Embodiment

[0015] Such as figure 1 As shown, the integrated anaerobic membrane bioreactor provided by the present invention is mainly composed of a main body 1 , a dynamic membrane module 5 and a stirring device 7 . The main body 1 is of a sealed structure, with an exhaust port 4 on the top, a water outlet 6 on the side, and a water inlet 3 and a mud discharge port 8 on the bottom. Two dynamic membrane modules 5 are installed in the main body 1 (the number of dynamic membrane modules 5 is determined according to the size of the main body 1 and the actual situation), and each dynamic membrane module 5 is supported and installed on the main body 1 by three ribs 9 at 120° to each other. middle. The structure of the dynamic membrane module 5 is as figure 2 As shown, the polyurethane activated carbon filter screen 15 is wrapped around the cylindrical skeleton 16, and the metal mesh 14 is built in the skeleton 6, so as to avoid the surface depression of the membrane module caused by the wat...

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Abstract

The invention provides an integral anaerobic dynamic membrane bioreactor and an operation method thereof. The integral anaerobic dynamic membrane bioreactor mainly comprises a main body, a dynamic membrane module and a stirring device, wherein the main body has a hermetical structure; the top of the main body is provided with an air outlet; the side of the main body is provided with a water outlet; the bottom of the main body is provided with a water inlet and a mud outlet; the dynamic membrane module is arranged inside the main body; the inside of the dynamic membrane module is provided with a water outlet pipe which is connected with the water outlet on the main body; the stirring device is arranged on the main body; a transmission shaft of the stirring device passes through the dynamic membrane module; a blade on the transmission shaft is positioned under the dynamic membrane module; and a liquid level sensor is arranged inside the main body. Water automatically flows out after being filtered by a dynamic membrane depending on the pressure difference between the liquid level of a mixture and the water outlet pipe of the reactor. The operation method for the reactor is to operate the reactor by adopting constant liquid level, wherein the water automatically flows out after being filtered by the dynamic membrane module depending on the pressure difference between the liquid level of the mixture in the main body and the water outlet pipe of the dynamic membrane module. The integral anaerobic dynamic membrane bioreactor solves the problem of membrane blocking and reduces the operating cost.

Description

technical field [0001] The invention relates to an integrated anaerobic dynamic membrane bioreactor, which belongs to the technical field of water treatment with anaerobic technology as the main body. Background technique [0002] Membrane bioreactors can be divided into integrated type and split type according to different configurations. Traditional anaerobic membrane bioreactors mostly adopt a split configuration. The membrane modules are placed outside the main body of the anaerobic reactor, and a pump is used to drive the mixed liquid to flow on the membrane surface to form a higher cross-flow velocity. While this method obtains a large membrane flux, the shearing action of the pump destroys the structure of the sludge flocs, weakens the metabolic activity of microorganisms, and reduces the sewage treatment efficiency. [0003] Due to the use of microfiltration and ultrafiltration membranes, traditional anaerobic membrane bioreactors have disadvantages such as high mem...

Claims

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Application Information

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IPC IPC(8): C02F3/28
Inventor 王曙光赵立健梁爽张成禄卢磊刘菲菲
Owner SHANDONG UNIV
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