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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  • Summary
  • Abstract
  • Description
  • 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, which comprises a mechanical grid, a regulating tank, an anoxic tank, a membrane bioreaction tank, a sludge tank and a clean water tank. The sewage first passes through the mechanical grid to remove suspended matter and then enters the regulating tank through a pipeline. The regulating tank is used to adjust the water quality and quantity. There is a lifting pump in the regulating tank, and the lifting pump regularly sends the water in the regulating tank to the anoxic tank. The sewage in the anoxic tank is undergoing anaerobic nitrification reaction and enters the membrane bioreaction tank for further oxidation and decomposition. , meet the discharge standard, and send it to the clean water pool. The system of the present invention greatly reduces the floor area of ​​the sewage treatment system, and due to the filtration effect of the membrane, the microorganisms are completely trapped in the bioreactor, realizing the complete separation of the hydraulic retention time and the sludge age of the activated sludge, eliminating the traditional Sludge bulking problem in activated sludge process.

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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