Sewage treatment system and method for separating solid-phase pollutants in sewage

Abstract

The invention relates to the technical field of sewage treatment, and discloses a sewage treatment system and method for separating solid-phase pollutants in sewage, and the method comprises the following steps: S1, introducing the sewage into a filter cartridge for filtering; s2, the filtered sewage is sequentially injected into precipitation cavities below for precipitation, when the sewage enters the corresponding precipitation cavities through mounting pipes, propeller blades are driven to drive rotating ring plates to control opening and closing of discharging assemblies, and chemicals are added into the precipitation cavities; and S3, the sewage injected into the precipitation cavity drives the floating block to block the mounting pipe, then the sewage in the precipitation cavity is subjected to standing precipitation, and finally water is discharged. According to the treatment method, the treatment box can treat the sewage without shutdown, solid-phase pollutants with large particle sizes in the sewage are filtered, solid-phase pollutants with small particle sizes in the sewage are precipitated, and therefore separation of the solid-phase pollutants in the sewage is well achieved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a sewage treatment system and method for separating solid-phase pollutants in sewage. Background technique [0002] Sewage treatment is widely used in construction, agriculture, transportation, environmental protection, medical and other fields. In the separation and treatment of solid-phase pollutants in sewage, the filtration-precipitation process is usually used to remove solid-phase pollutants with larger particle size in sewage through the filtration process, and the solid-phase pollutants with smaller particle size in sewage are removed through precipitation. However, the prior art lacks equipment or methods for filtering and precipitation treatment of sewage. SUMMARY OF THE INVENTION [0003] Aiming at some or some defects existing in the prior art, the present invention provides a sewage treatment system and method for separating solid-phase pollutants in sewa...

AI Technical Summary

Problems solved by technology

When separating and treating solid-phase pollutants in sewage, a filtration-sedimentation process is usually used to remove solid-phase pollutants with larger particle sizes in sewage through filtration and to remove solid-phase pollutants with smaller particle sizes in sewage through precipitation However, there is a lack of equipment or methods for better filtering and sedimentation treatment of sewage in the prior art

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