Powerless sewage purification device

Abstract

The invention discloses a powerless sewage purification device which comprises a shell, a coarse screen, a fine filtering layer, a collecting tank and a biological activated carbon trickling filter. The powerless sewage purification device is characterized in that the coarse screen is arranged at the upper part of the fine filtering layer; the biological activated carbon trickling filter is arranged at the lower part of the fine filtering layer; the coarse screen and the fine filtering layer are inclined to the collecting tank for a certain angle; the collecting tank is arranged at the rear part of the fine filtering layer; the collecting tank comprises a comb and a tank body; the fine filtering layer comprises a water distributor and a fine filtering net; the water distributor is arranged in front of the fine filtering net; a deversoir is arranged at the tail end of the water distributor. In the working process, relatively large dirt impurities in sewage can be baffled by the coarse screen, and relatively small dirt impurities are baffled by the fine filtering net, are fed into the collecting tank under the action of hydraulic scouring and gravity, and can be directly dumped. Filtered water drops into the biological activated carbon trickling filter, and dissoluble pollutants are adsorbed and biologically degraded. The coarse screen and the fine filtering layer do not need power for cleaning of filtering nets, and the biological activated carbon trickling filter does not need power for aeration, either. By adopting the powerless sewage purification device, the purpose of removing suspended pollutants and dissoluble pollutants in sewage without power can be achieved.

Description

technical field [0001] The invention relates to the technical field of sewage purification devices, in particular to a non-powered sewage purification device. Background technique [0002] Sewage must be treated before it can be discharged into natural water bodies. Sewage contains suspended pollutants and dissolved pollutants. The sewage treatment system must effectively remove the pollutants in the above two states to ensure that the discharge requirements are met. Existing sewage filtration devices generally use grids to remove suspended pollutants, and use biological aeration tanks to remove dissolved pollutants. Grilles need to use special power devices to remove filters regularly, and aeration tanks need to consume a lot of power for aeration. Both of them need auxiliary equipment and power consumption. Reducing power costs and equipment costs is the problem facing sewage treatment. Contents of the invention [0003] The purpose of the present invention is to solve...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that traditional sewage purification equipment needs to consume a large amount of energy, and propose a non-powered sewage purification device

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