Pretreatment device and pretreatment method for rural sewage

Abstract

The invention relates to the technical field of sewage pretreatment, and particularly discloses a pretreatment device and a pretreatment method for rural sewage. The pretreatment device comprises a collection mechanism, a first separation mechanism, a first precipitation mechanism, a crushing mechanism, a fermentation mechanism, a second separation mechanism, an aerobic mechanism and a second precipitation mechanism, wherein the collection mechanism comprises a collection box body, a first discharging pipe, a feeding pipe and a first discharging pipe; the first separation mechanism comprises a first collection box body, a driving shaft, a first spiral conveying blade, a third motor and a second discharging pipe, a discharging opening is formed in the bottom of the feeding end of the first collection box body, a first filtering plate is fixedly arranged at the position, located at the discharging opening, of the first collection box body, and a second discharging pipe is arranged at the position, located at the discharging opening, of the first collection box body; and the crushing mechanism comprises a crushing box body, two crushing rollers, a fourth motor, a filtering assembly, a third discharging pipe and a third discharging pipe. According to the pretreatment device, solid waste in sewage can be conveniently removed, and the influence of the solid waste on sewage treatment is reduced.

Description

technical field [0001] The present application relates to the technical field of sewage pretreatment, in particular to a pretreatment device and method for rural sewage. Background technique [0002] With the development of society and economic progress, people's awareness of environmental protection has been continuously strengthened. However, due to the large population in rural areas and the long-term lack of infrastructure, the problem of environmental pollution in rural areas has become more and more prominent. Rural residents have different living styles, diets, and hygiene habits from cities, so that rural sewage contains more solid waste, such as leftovers, leftovers, leaves, sludge, etc. For these wastes, generally use grilles to intercept them. Under the action of a large amount of waste, the grille is prone to blockage and breakage, which will affect the treatment of sewage. Contents of the invention [0003] In order to reduce the impact of solid waste on sewa...

AI Technical Summary

Problems solved by technology

Rural residents have different living styles, diets, and hygiene habits from cities, so that rural sewage contains more solid waste, such as leftovers, leftovers, leaves, sludge, etc. For these wastes, generally use grilles to intercept them. Under the action of a large amount of waste, the grille is prone to blockage and breakage, which will affect the treatment of sewage

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