Sewage treatment device

Abstract

The invention discloses a sewage treatment device, and relates to the field of sewage treatment. The sewage treatment device comprises a flocculation bin main body, and the flocculation bin main body comprises a first flocculation cabin, a second flocculation cabin and a third flocculation cabin which are sequentially arranged from top to bottom. A first stirring device, a second stirring device and a third stirring device are respectively arranged in the first flocculation cabin, the second flocculation cabin and the third flocculation cabin, and the stirring speed of the first stirring device, the stirring speed of the second stirring device and the stirring speed of the third stirring device are sequentially reduced. The three stages of flocculation cabins are arranged, each flocculation cabin is provided with the stirring device, and the stirring devices of the three stages of flocculation cabins are set to be at different stirring speeds, so that rapid and efficient flocculation can be realized.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a sewage treatment device. Background technique [0002] The flocculation treatment of sewage refers to the process of adding appropriate flocculants to the sewage to make it absorb particles and "bridge" between particles to promote aggregation and form flocs, so as to achieve the purpose of solid-liquid separation. [0003] In the prior art, in the process of sewage flocculation, stirring is usually required. However, the stirring effect in the prior art is not ideal, and the sewage cannot be fully contacted with the flocculant, and the stirring speed required in the process of sewage flocculation is not sufficient. It is not the same. The sewage flocculation process in the prior art cannot provide different stirring speeds for different stages of the flocculation process, and cannot achieve accurate and efficient flocculation; at the same time, the flocculation sediment in the ...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, in the process of sewage flocculation, stirring is usually required. However, the stirring effect in the prior art is not ideal, and the sewage cannot be fully contacted with the flocculant, and the stirring speed required in the process of sewage flocculation is not sufficient. It is not the same. The sewage flocculation process in the prior art cannot provide different stirring speeds for different stages of the flocculation process, and cannot achieve accurate and efficient flocculation; at the same time, the flocculation deposits in the sedimentation bin are easy to adhere to the side wall of the old engine room, which is difficult to clean , affecting the final flocculation efficiency and effect

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