Sewage treatment equipment

Abstract

The invention discloses sewage treatment equipment which comprises a first treatment tank, a second treatment tank, a third treatment tank and a fourth treatment tank which are sequentially communicated in a direction from the upstream to the downstream of a water body, wherein the first treatment tank is connected with a dosing device for dosing a water purification agent; a hydraulic push deviceis arranged in the third treatment tank; and a filtering net is arranged inside the fourth treatment tank. The equipment is mounted in a final water section flowing into a river, sewage can be purified once in each section, then pollutants such as eutrophication substances and sludge in the water can be substantially eliminated, water quality environments can be recovered, the contents of water pollutants in the treated water can be reduced to a lowest level, the equipment is harmless to clay layers at the bottoms of rivers or beneficial microorganisms, low in equipment cost and easy to mount, the problem that a conventional sewage treatment plant is high in cost is solved, clean water can be supplied to residents, and the problem of water environments is substantially solved.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to sewage treatment equipment. Background technique [0002] With the rapid development of urbanization, more and more pollutants are released into the water environment. The causes of water pollution include both natural and man-made factors. Rainwater and domestic sewage contain pollutants. Existing sewers Treatment facilities are often too late or unable to treat some pollutants in sewage, causing them to flow directly into rivers, which not only pollutes water sources, but also destroys the ecological environment. [0003] At present, the industrial wastewater treatment of petroleum drilling, refining, chemical industry, electric power, pharmaceutical, pharmaceutical and other industries has attracted more and more people's attention. Industrial wastewater has a wide coverage, large volume, many pollutants, and complex composition. The organic substances in ...

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Problems solved by technology

[0006] For this reason, the technical problem to be solved by the present invention is that the existing sewage treatment equipment is not thorough enough to treat water pollution, harmful impurities have not been eradicated, and the treated sewage still has a great impact on the river environment, thereby proposing a treatment with higher efficiency , Sewage treatment equipment and treatment methods with more thorough purification effect

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