A decentralized treatment process and device for rural domestic sewage

Abstract

The invention relates to a decentralized treatment process and device for domestic sewage in rural areas, comprising a filter tank with a water inlet and a water outlet, multiple driving devices, multiple filtering devices and multiple miscellaneous collecting devices, and the multiple filtering devices are arranged along the front and rear directions Set in the filter pool cavity in turn; the filter device includes a filter screen and a tension line, the filter screen is vertically arranged and inclined relative to the vertical plane perpendicular to the front and rear directions, and the left edge of the filter screen is at the edge of the right edge In the front, the tension line is set on the front side of the filter screen, and the two ends of the tension line are connected with the left and right sides of the filter screen to form a ring structure; The rear side of the right edge; the driving device is configured to drive the filter screen and the tension wire to rotate clockwise, and under the impact of the water flow, the impurities between the filter screen and the tension wire are collected into the first collection part , The filter screen is self-cleaning under the impact of water flow.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a decentralized treatment process and device for rural domestic sewage. Background technique [0002] At present, due to the high content of undissolved impurities in domestic sewage, it is necessary to filter it first in the sewage treatment process. In the preliminary filtration system for removing sewage particulate impurities, the filter screen is often blocked due to the high content of impurities, and the filtration quality and efficiency cannot be achieved. ensure. How to ensure the quality and efficiency of filtration has become an urgent problem to be solved. The patent application with the application number 201510746248.7 discloses a sewage filtration system, including filter pipes, front filter screens, rear filter screens, front annular plates, rear annular plates and other structures. , can actively adjust the mesh size of the filter according to the size of the im...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a decentralized treatment process and device for rural domestic sewage to solve the existing problem that the impurities in the sewage are evenly distributed on the filter screen, and the linear impurities in the sewage, such as hair and wool, cannot be filtered by the filter screen, causing the filter screen to be blocked. , leading to a decrease in sewage flow rate and low treatment efficiency

As a result, the maintenance cost of the sewage treatment system is too high, and the filter screen is inconvenient to clean

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