Water conservancy riverway sewage treatment device

Abstract

The invention relates to a water conservancy riverway sewage treatment device. The treatment device comprises a sedimentation tank, a buffer tank, a wetland water tank and a clear water tank which aresequentially communicated from front to back, a grating plate is fixedly connected to the upper portion in the sedimentation tank, and a cleaning device used for clearing away sundries on the gratingplate is arranged on the grating plate. A sediment collecting device is arranged at the bottom of the sedimentation tank so as to discharge sediment, a telescopic disc and a lifting rotating device are further arranged in the sediment collecting device, and the lifting rotating device drives the telescopic disc to vertically ascend and descend and rotate around the central axis of the sedimentation tank so as to scrape off the sediment; the telescopic disc can stretch out and draw back in the radial direction to abut against the inner side wall of the sediment collecting device; and an anaerobic treatment device is arranged in the buffer tank. The treatment device has the beneficial effects that the sewage purification effect is good; sediments are convenient to discharge; sundries on thegrating plate can be cleared away; and the sediments at the bottom of the sedimentation tank can be scraped off.

Description

technical field [0001] The invention relates to a sewage treatment device, in particular to a water conservancy river sewage treatment device. Background technique [0002] With the acceleration of urbanization and the improvement of industrialization, the degree of water pollution is increasing day by day. Many water bodies such as urban rivers, lakes, and reservoirs have serious problems such as seasonal or year-round black and smelly phenomena. It is urgent to restore water bodies to improve the water quality environment. Among them, urban rivers, as water bodies directly discharged by urban production and domestic sewage, are more polluted. Judging from the on-site investigation of urban rivers, the main sources of water pollution in existing rivers are pollution from uninterrupted sewage, runoff, and mixed flow. According to the data collection and on-site pollution investigation of black and odorous rivers in cities that have been investigated, uninterrupted sewage, ru...

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Problems solved by technology

[0003] The key to the improvement of urban black and odorous rivers is to intercept sewage pipes, divert rain and sewage, and control sewage discharge from sewage outlets. Treatment of polluted water at sewage outlets by means of high investment costs, large floor area, and difficult management

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