Rainwater and sewage intercepting construction process

Abstract

The invention discloses a rainwater and sewage intercepting construction process. The rainwater and sewage intercepting construction process comprises the following steps that dry season mixed flow sewage is intercepted to an upstream sewage pipeline through an intercepting well, then is pumped into a primary sedimentation tank for sedimentation through an integrated pump, then is enabled to enter a multi-stage sedimentation tank for sedimentation, and finally, the sewage subjected to sedimentation is conveyed into a sewage treatment plant through a sewage pipe for treatment; and initial rainwater in rainy seasons is stored in an initial rainwater storage pond, then passes through the intercepting well to the upstream sewage pipeline, is pumped into the primary sedimentation tank through the integrated pump to be settled, then enters the multi-stage sedimentation tank to be settled, and finally, the settled sewage is fed into the sewage treatment plant through the sewage pipe to be treated. According to the rainwater and sewage intercepting construction process, the process path is variable, adjustment can be conducted at any time, the intercepting well can be cleaned, and the pipeline can be dredged.

Description

technical field [0001] The invention relates to the technical field of rain and sewage interception, in particular to a construction process for rain and sewage interception. Background technique [0002] After the initial rain washes the air and the ground surface, it will carry a large amount of toxic and harmful substances. After investigation, it has been shown that the toxic and harmful substances carried by the initial rain are more than domestic sewage. If the initial rainwater is directly discharged to rivers and lakes without treatment, the water body will be seriously polluted; the main pollutants are NH3-N, COD, SS and TP. However, the current rainwater interception system has a single path for rainwater interception , cannot be adjusted flexibly, and pollutants are easy to accumulate in the interception well, causing odor, blockage, mosquito breeding, etc., and the interception well is large and difficult to clean, and the cleaning cost is also high. In addition...

AI Technical Summary

Problems solved by technology

If the initial rainwater is directly discharged to rivers and lakes without treatment, the water body will be seriously polluted; the main pollutants are NH3-N, COD, SS and TP. However, the current rainwater interception system has a single path for rainwater interception , cannot be adjusted flexibly, and pollutants are easy to accumulate in the interception well, causing odor, blockage, breeding of mosquitoes and flies, etc., and the interception well is large and difficult to clean, and the cleaning cost is also high

In addition, the sewage treatment effect of the current storm water interception system is not good

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