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Integrated membrane biological fluidized bed sewage treating method and apparatus

The technology of a sewage treatment device and sewage treatment method, applied in the field of organic sewage treatment, can solve the problems of affecting the service life of the membrane, short backwashing cycle, and increasing the treatment cost, so as to reduce the cost of water production, reduce the probability and degree, and increase the production capacity. The effect of water rate

Inactive Publication Date: 2007-03-28
SOUTHEAST UNIV
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Problems solved by technology

Such a short backwash cycle not only has troublesome operation and poor operation stability, but also greatly affects the service life of the membrane, increases energy consumption, and increases treatment costs

Method used

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  • Integrated membrane biological fluidized bed sewage treating method and apparatus
  • Integrated membrane biological fluidized bed sewage treating method and apparatus
  • Integrated membrane biological fluidized bed sewage treating method and apparatus

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Embodiment Construction

[0025] Below, the invention will be further described in conjunction with the accompanying drawings and embodiments.

[0026] Fig. 1 is a process flow chart of the integrated membrane biological fluidized bed sewage treatment and recycling system of the present invention. The sewage is sent to the anoxic zone 1-1 through the regulating tank 5, and then sent to the aerobic membrane biological fluidized bed zone 1-2 after being pretreated by the anoxic zone 1-1, and then treated by the aerobic membrane biological fluidized bed zone 1-2 Finally, one way is to discharge clear water through membrane separation, and the other way is to discharge the phosphorus-absorbing sludge to the anaerobic phosphorus-releasing tank 2. After being treated in the anaerobic phosphorus-releasing tank 2, it is divided into two ways, and one way is to return the phosphorus-releasing sludge to the anoxic zone. 1-1, the other way discharges the supernatant to the coagulation sedimentation tank 3 for che...

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Abstract

The invention is an integrated membrance biofluidized bed sewage treating method and device, a device and method for organic sewage (waste) water treatment, where the method: feeding sewage water through regulating tank into an oxygen-starved area, then feeding the pretreated sewage water into an aerobic membrane biofluidized bed area for treatment, then making membrane separation to output clean water and discharging P-carrying mud into an anaerobic P releasing tank for treatment, then returning the P-released mud into the oxygen-starved area and discharging supernatant into a mixing coagulation settling tank, and finally returning the supernatant into the oxygen-starved area and discharging chemical mud into a mud tank. And the device mainly comprises integrated membrane biofluidized bed sewage treater, anaerobic P releasing tank, and mixing coagulation settling tank.

Description

technical field [0001] The invention relates to a method and a device for treating organic sewage (waste) water, belonging to the technical field of organic sewage (waste) water treatment and resource utilization. Background technique [0002] In recent years, as one of the most effective means of organic sewage (waste) water treatment and resource utilization, membrane biotechnology (MB) has achieved rapid development in practical applications. The effective interception of macromolecular organic matter and free bacteria can greatly increase the sludge concentration and sludge age in the reactor, improve the biological structure, and improve the quality of the effluent. However, due to the serious membrane fouling problem, the long-term stable operation of the reactor is restricted, the energy consumption is increased, the life of the membrane is reduced, and the cost of water production is increased; in addition, the low load of the general bioreactor and the loose biologi...

Claims

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Application Information

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IPC IPC(8): C02F3/30
Inventor 王世和杨小丽马金霞吴剑沈倩宇卢宁
Owner SOUTHEAST UNIV
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