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AAO-MBR sewage processing device and optimization operation method

A sewage treatment equipment, sewage technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve problems such as differences in sludge settling performance, reduce operating energy consumption and The effect of project investment, energy saving and improving effluent quality

Inactive Publication Date: 2015-12-23
GUANGZHOU MUNICIPAL ENG DESIGN & RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, in the MBR process, the sludge age of the activated sludge is as long as 20 days, which is about three times the sludge age of the traditional activated sludge method, and the sludge settling performance is also very different.

Method used

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  • AAO-MBR sewage processing device and optimization operation method
  • AAO-MBR sewage processing device and optimization operation method
  • AAO-MBR sewage processing device and optimization operation method

Examples

Experimental program
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Embodiment 1

[0030] Embodiment one, refer to figure 1 and figure 2 , a kind of AAO-MBR sewage treatment equipment, including interconnected anaerobic pool a, anoxic pool b, aerobic pool c and membrane pool d.

[0031] The agitator a1 and b1 are respectively arranged in the anaerobic pool a and the anoxic pool b; the membrane module d1 is arranged in the membrane pool d, the membrane module d1 adopts a hollow fiber membrane, the anaerobic pool a has a water inlet, and the membrane pool d With excess sludge outlet, membrane module d1 is connected to blower d0 and outlet pipe d2.

[0032] The aerobic pool c is composed of three corridors in series, which are the aerobic pool c1, the aerobic pool c2, and the aerobic pool c3. The first aeration system e1, the second aeration system e2, and the third aeration system e3 are connected to the blower e0 through pipes and valves f1, f2, and f3, respectively.

[0033] This treatment equipment contains three sets of internal circulation systems: th...

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Abstract

The invention provides an AAO-MBR sewage processing device and an optimization operation method. The device mainly comprises an anaerobic tank, an anoxic tank, an aerobic tank and a membrane tank, and the anaerobic tank, the anoxic tank, the aerobic tank and the membrane tank are communicated with each other. The aerobic tank is composed of three galleries in series connection which are an aerobic tank c1, an aerobic tank c2 and an aerobic tank c3 in order. A first aeration system e1, a second aeration system e2 and a third aeration system e3 are arranged in the aerobic tank c1, the aerobic tank c2 and the aerobic tank c3 respectively and are connected with a blower through pipes and valves. Backflow systems are arranged between the membrane tank and the aerobic tank, between the aerobic tank and the anoxic tank and between the anoxic tank and the anaerobic tank respectively. The three galleries of the aerobic tank are subjected to interactive or alternative aeration on the premise that a lot of dissolved oxygen carried by backflow liquid in the membrane tank is fully utilized, operation energy consumption of an MBR technology is reduced, MBR technology energy saving consumption reduction optimization operation is achieved, and a nitrogen removal function of a traditional or present AAO-MBR technology is raised. The optimization operation method is suitable for optimization operation and control of various sewage processing technologies of an activated sludge process and MBR and has wide adaptability.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and relates to an activated sludge sewage biological treatment process. Background technique [0002] Membrane bioreactor technology (that is, MBR sewage treatment process) is the product of the organic combination of membrane separation technology and sewage biological treatment technology. This technology replaces the sludge-water gravity sedimentation separation process in the traditional activated sludge treatment process with ultra- and microfiltration membrane separation processes. , due to the use of membrane separation, it can maintain a high biophase concentration and a very excellent water effluent effect. This technology has the advantages of good and stable effluent quality, small footprint, less excess sludge discharge, no influence of sludge bulking, strong impact load resistance, high degree of automation, and simple operation and management. With the improvement of efflu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 李捷隋军
Owner GUANGZHOU MUNICIPAL ENG DESIGN & RES INST CO LTD
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