Medium- and small-sized sewage treatment integrated device

Abstract

The invention provides a medium- and small-sized sewage treatment integrated device which comprises a biotreatment unit, a precipitate and sludge return unit, an optical catalytic oxidization unit, a deep treatment unit and a disinfection unit sequentially connected, wherein the precipitate and sludge return unit is respectively connected with the water inlet of the optical catalytic oxidization unit and the water inlet and water outlet of the deep treatment unit; the biotreatment unit comprises a water inlet region, an anaerobic treatment region, an anaerobic treatment region and an aerobic treatment region which are sequentially connected; the deep treatment region comprises a water distributing tank, a particle active carbon filter material layer, a quartz sand filter layer and a cobblestone supporting layer which are sequentially connected from top to bottom. The device has the characteristics of being compact in structure, small in occupied area, convenient to use, flexible to operate, low in treatment cost, high in effluent quality, strong in adaptability and the like and has relatively good popularization and application prospects.

Description

technical field [0001] The invention belongs to the field of water treatment, in particular to a small and medium-sized sewage treatment integrated device. Background technique [0002] The quality of China's water environment is poor, and the typical pollutants are organic pollutants, nitrogen, phosphorus and trace organic pollutants. To improve the water environment, strengthening sewage treatment and improving the quality of tail water treated by sewage plants is one of the indispensable ways. At present, when urban sewage is basically effectively treated, the treatment of small and medium-sized sewage plants mainly in villages and towns is particularly important. [0003] The existing sewage treatment facilities for villages and towns have made some progress after years of development, but the previous research mainly focused on organic pollutants, and there are also basic problems in operation such as unstable operation effect and difficulty in guaranteeing the quality...

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Problems solved by technology

[0003] The existing sewage treatment facilities for villages and towns have made some progress after years of development, but the previous research mainly focused on organic pollutants, and there are also basic problems such as unstable operation effects and difficult guarantee of effluent water quality during operation.

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