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Moving bed type purification tank

A technology of moving bed type and purification tank, which is applied in the field of environmental engineering sewage treatment, and can solve problems such as non-directional movement

Inactive Publication Date: 2013-05-01
CAPITAL GREINWORTH ENVIRONMENTAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this patent, the aeration makes the filler in a disordered fluidized state, and there is no directional movement

Method used

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Embodiment Construction

[0016] The sewage is collected by the collection tank 18 . In the collection tank 18 , the sediments and floating objects in the raw sewage are separated, and the intake pump 1 quantitatively lifts a certain amount of sewage from the water inlet 3 into the tank body 2 .

[0017] The anaerobic zone A is filled with suspended fillers 6 . The specific gravity of the suspended filler is 0.92 to 0.98. The principle of determining the specific gravity of the suspended filler is that the filler can always remain in a suspended state and will not sink during the operation process after the microorganisms hang on the film. In a static water body, the suspended fillers are densely crowded and arranged below the water level. The upper edge of the aeration cylinder 4 is lower than the horizontal by a certain distance, for example, 5-10 cm. The lower edge of the aeration cylinder 4 is higher than the bottom line of the packing layer by a certain distance, for example, 5-10 cm. When the ...

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Abstract

The invention relates to a moving bed type purification tank. The interior of the moving bed type purification tank comprises an anaerobic zone, an aerobic zone, a settling zone and a sludge zone. A suspended filler with a density approximate to that of water is directly added into a reactor and used as a microbial carrier; and the carrier and sludge are cyclically regenerated in the tank. The moving bed type purification tank has advantages same as those of an activated sludge process and a biological contact oxidation process. The purification tank has the beneficial effects of capacity of continuous operation, no blocking, no need for backwashing, small head loss, a good treatment effect and suitability for application in treatment of rural decentralized domestic sewage.

Description

technical field [0001] The invention relates to a moving bed type purification tank, which is suitable for rural scattered domestic sewage treatment. It belongs to the technical field of environmental engineering sewage treatment. Background technique [0002] The random discharge of scattered domestic sewage in rural areas is an important source of pollution that causes the deterioration of rural ecological environment. Rural areas are scattered and the terrain is complex, and it is difficult to collect and treat large-scale sewage in a centralized manner. In suburban areas far away from the sewage treatment network, it is also difficult to collect and centrally treat them. The use of small-scale decentralized sewage treatment devices for local treatment is the only way for pollution control. A variety of underground small sewage treatment devices have appeared in rural areas of our country, and have achieved obvious results. At the same time, foreign purification tank ...

Claims

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Application Information

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IPC IPC(8): C02F3/30
Inventor 朱加征吴科昌沈骏王君於胜洪
Owner CAPITAL GREINWORTH ENVIRONMENTAL CORP
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