Sewage filtering machine

Abstract

The invention discloses a sewage filtering machine, and belongs to the field of sewage treatment equipment, wherein the sewage filtering machine comprises a solid-liquid separator, a coarse filtering machine and a fine filtering machine; the solid-liquid separator, the coarse filtering machine and the fine filtering machine are sequentially communicated, and sewage carrying floc is sequentially filtered by the solid-liquid separator, the coarse filtering machine and the fine filtering machine; and impurities in liquid filtered for multiple times are obviously reduced, the solid-liquid separator, the coarse filtering machine and the fine filtering machine are reasonable in structure and assist with one another, backwashing operation of the coarse filtering machine is achieved, an additionally input water body is reduced as much as possible, water recycling is achieved, and water resources are saved.

Description

technical field [0001] The invention relates to the field of sewage treatment equipment, in particular to a sewage filter. Background technique [0002] Water is the source of life and the basic material for human survival. Some parts of the earth are covered by water, but there are very few fresh water resources that humans can really use. With the rapid development of social economy, the demand for water has increased sharply, coupled with the waste of water and the pollution of water resources, the lag of sewage treatment facilities and the lack of effective control of non-point source pollution, the global fresh water resources are facing two major problems: water damage environmental pollution and water shortage. In some countries and regions, especially developing countries and regions, it is becoming more and more serious and has a tendency to intensify. [0003] Compared with the shortage of water resources, the problem of water pollution is more urgent. Clean wat...

AI Technical Summary

Problems solved by technology

With the rapid development of social economy, the demand for water has increased sharply, coupled with the waste of water and the pollution of water resources, the lag of sewage treatment facilities and the lack of effective control of non-point source pollution, the global fresh water resources are facing two major problems: water damage environmental pollution and water shortage

Especially the wastewater discharged from chemical, pesticide, dyestuff, medicine, food and other industries has high concentration, high chroma, strong toxicity, complex composition, and contains a large number of biodegradable components, which has brought serious water pollution to the world

Images