Municipal refuse leachate multi-stage treatment device

Abstract

A municipal refuse leachate multi-stage treatment device comprises a closed water tank; a stirring pool is fixedly mounted on the top face of the water tank; a water inlet pipe is connected between the stirring pool and the water tank in a penetrating mode, a longitudinal shaft is rotatably mounted on one side of an inner cavity of the water tank, and coaxial circular plates are fixedly mounted on the front side and the rear side of the periphery of the longitudinal shaft respectively; the other side of the inner cavity of the water tank is provided with a turning plate; a hinge base is fixedly mounted on the side, away from the circular plates, of the bottom face of the turning plate, the front end and the rear end of a rotating shaft in the hinge base are fixedly connected with the corresponding inner walls of the water tank, vertical plates are fixedly mounted on the front side and the rear side of the turning plate, and an extrusion roller is arranged on the top face of the turning plate; and the front end and the rear end of the extrusion roller are respectively connected with the corresponding vertical plates through bearings. On one hand, a filter screen can be automatically cleaned, the automatic deslagging function is achieved, on the other hand, filtered floccules can be subjected to extrusion dehydration treatment, and the workload of subsequent floccule treatment is reduced.

Description

technical field [0001] The invention belongs to the field of garbage leachate sewage treatment, in particular to a multi-stage treatment device for urban garbage leachate. Background technique [0002] Landfill leachate needs to be processed through coarse filtration of solid particles - adding flocculant to separate heavy metals - stirring and mixing to accelerate coagulation reaction - filtration and separation of flocs and other multi-stage treatment. In terms of floc filtration, the existing filter screen In actual use, it will be blocked quickly, requiring manual or machine sweeping at any time. In addition, the filtered flocs will absorb a large amount of sewage, and secondary extrusion drainage treatment is required, which increases the complexity of sewage treatment. Contents of the invention [0003] The invention provides a multi-stage treatment device for urban garbage leachate, which is used to solve the defects in the prior art. [0004] The present invention...

AI Technical Summary

Problems solved by technology

[0002] Landfill leachate needs to be processed through coarse filtration of solid particles - adding flocculant to separate heavy metals - stirring and mixing to accelerate coagulation reaction - filtration and separation of flocs and other multi-stage treatment. In terms of floc filtration, the existing filter screen In actual use, it will be blocked quickly, and manual or machine cleaning is required at any time. In addition, the filtered flocs will absorb a large amount of sewage, and secondary extrusion drainage treatment is required, which increases the complexity of sewage treatment.

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