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Sewage treatment system

A technology of sewage treatment system and clear water tank, which is applied in the field of water treatment, can solve the problems of heavy operation and maintenance workload, long multi-process flow, large sludge discharge, etc., and achieves reduced floor space and high removal efficiency. , the effect of stable water quality

Inactive Publication Date: 2018-01-09
樊忠芳
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  • Claims
  • Application Information

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Problems solved by technology

The existing sewage treatment system has many processes that are too long, occupies a large area, has a large amount of sludge discharge, and has a large workload for operation and maintenance.

Method used

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  • Sewage treatment system

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Embodiment Construction

[0015] The present invention will be further described below. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0016] like figure 1 As shown, the sewage treatment system of the present invention includes a mechanical grid 1 , a regulating tank 11 , an anoxic tank 10 , a membrane bioreaction tank 9 , a sludge tank 8 and a clean water tank 7 . The domestic sewage is collected by pipelines and enters the sewage treatment station uniformly. At the sewage treatment station, the sewage first passes through the mechanical grid 1 to remove suspended solids such as plastic bags and cloth strips, and then enters the regulating tank 11 through the pipeline. The adjustment pool 11 is used for the adjustment of water quality and water quantity. The bottom of the adjustment pool adopts perforated aeration, which acts as agitator and is used to equalize the water...

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Abstract

The invention discloses a sewage treatment system. The sewage treatment system comprises a mechanical grid, an adjusting tank, an anoxic pond, a membrane biological reaction tank, a sludge tank and aclear water tank, wherein sewage firstly passes through the mechanical grid to remove suspended solids and then enters the adjusting tank by virtue of a pipeline, the adjusting tank is used for adjusting water quality and water volume, a lift pump is arranged in the adjusting tank, the lift pump feeds water in the adjusting tank into the anoxic pond at regular time, anaerobic nitrification reaction is carried out on the sewage in the anoxic pond, then the sewage enters into the membrane biological reaction tank and is further oxidized and decomposed, then discharge standard is met, and the obtained water is fed into the clear water tank. The sewage treatment system disclosed by the invention has the advantages that floor area of the sewage treatment system is greatly reduced, due to a filtration function of a membrane, microorganisms are completely intercepted in a biological reactor, thorough separation of hydraulic retention time and activated sludge age is realized, and the problemof sludge expansion in the traditional activated sludge process is eliminated.

Description

technical field [0001] The invention relates to a sewage treatment system, which belongs to the technical field of water treatment. Background technique [0002] The water quality of domestic sewage is complex, and the sewage contains a large number of bacteria, viruses, parasite eggs and toxic and harmful substances. The urban sewage treatment process generally determines the degree of sewage treatment and the corresponding treatment process according to the utilization or discharge of urban sewage and the natural purification ability of the water body. Whether the treated sewage is used for industry, agriculture or recharge to replenish groundwater, it must meet the relevant water quality standards issued by the state. [0003] Modern sewage treatment technology can be divided into primary, secondary and tertiary treatment processes according to the degree of treatment. Primary sewage treatment applies physical methods, such as sieving, sedimentation, etc., to remove und...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30
Inventor 樊忠芳
Owner 樊忠芳
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