Sewage sedimentation tank for water treatment

Abstract

The invention discloses a sewage sedimentation tank for water treatment. The device comprises a concave cavity formed in the ground, a sedimentation tank is mounted at the top opening end of the concave cavity; a precipitation cavity with openings in the upper and lower ends is formed in the precipitation tank; a movable plate is arranged in the precipitation cavity; the whole sedimentation tank is sealed through the movable plate, a longitudinal chute is formed in the inner wall face of the precipitation cavity, a corresponding sliding block is arranged on the movable plate right opposite tothe longitudinal chute, the sliding block is arranged in the longitudinal chute in a sliding mode, a water collecting box is arranged on the bottom face of the concave cavity, an adsorption device isarranged on the water collecting box, and an elastic rubber bag is arranged at the bottom of the movable plate. Through the sewage sedimentation tank, automatic cleaning of sediments and automatic cleaning of the inner wall of the precipitation cavity can be achieved, manual cleaning in the later period is not needed, the labor intensity of workers is reduced, and the cleaning effect is better.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a sewage sedimentation tank for water treatment. Background technique [0002] In sewage treatment, a very important part of water treatment is the sedimentation of sewage. After a long period of precipitation, the suspended particles in the sewage are deposited to the bottom. Therefore, after each precipitation is completed, in order to prevent sediment from reducing the internal space of the sedimentation tank , it is necessary to manually clean the pool wall and the bottom of the pool. The cleaning method is generally a large amount of water washing, and for the large amount of sediment deposited at the bottom, it is difficult to use a sludge pump to remove it due to the large area covered by the sediment. It is extracted, so the sediment must be collected first, and then transported, so it is very inconvenient. Before the sediment is discharged, it needs to be treated intensiv...

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Problems solved by technology

[0002] In sewage treatment, a very important part of water treatment is the sedimentation of sewage. After a long period of precipitation, the suspended particles in the sewage are deposited to the bottom. Therefore, after each precipitation is completed, in order to prevent sediment from reducing the internal space of the sedimentation tank , it is necessary to manually clean the pool wall and the bottom of the pool. The cleaning method is generally a large amount of water flushing, but for the large amount of sediment deposited at the bottom, due to the large area covered by the sediment, it is difficult to use a sludge pump to remove it. It is extracted, so the sediment must be collected first, and then transported, so it is very inconvenient. Before the sediment is discharged, it needs to be treated intensively, which is labor-intensive.

However, for the cleaning of the pool wall and the bottom of the pool after cleaning the sediment, a large amount of water is required for washing, which wastes water resources and increases labor intensity.

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