Sectioned intercepting and online treatment and discharging system

Abstract

The invention relates to the field of urban water treatment systems, in particular to a sectioned intercepting and online treatment and discharging system. A water receiving area is divided into a plurality of sections in a latticed shape, and the area of each section is 0.2-4 square kilometers; each section is internally provided with one or more drainage branch pipes, one or more intercepting wells and one or more online treatment pools; a water inlet of each corresponding intercepting well is communicated with the outlet end of the corresponding drainage branch pipe, early rain water drainage openings are communicated with a trunk sewer, later rain water drainage openings are communicated with the online treatment pools, and the discharging end of each online treatment pool is communicated with a natural water body. According to the sectioned intercepting and online treatment and discharging system, the sections are provided with the independent intercepting wells, the problem of delay in long-distance conveying of early rainwater in the prior art is solved, the online treatment pools are arranged so that later rain water in the sections can be correspondingly treated efficiently, rapidly and conveniently, and the treatment burden of a sewage treatment plant is relieved while the situation that the natural water body is contaminated by early rain water is avoided.

Description

technical field [0001] The invention relates to the field of urban water treatment systems, in particular to an on-line treatment and discharge system for fragmentation interception. Background technique [0002] For diversion rainwater pipelines, at present, each outlet does not have any interception measures, and is directly discharged into natural water bodies, so that the sewage in sunny days and the first rain in rainy days are all discharged into natural water bodies, causing serious pollution to natural water bodies . [0003] For combined pipelines, in many areas, a main sewage pipe is discharged into the sewage treatment plant through the interception well at the end. In rainy days, the rainwater and domestic sewage are discharged to the natural water body through the interception well. In actual operation, in order to save space and engineering cost, the water collection area responsible for the combined discharge system is generally set as large as possible, and ...

AI Technical Summary

Problems solved by technology

But for area M, a large amount of later clean rainwater in area M is also discharged into the urban sewage treatment system during the time when the storage tank discharges the initial rainwater in area N. Such discharge will cause great damage to the urban sewage system dealing with stress

In addition, the pipe network in M ​​area and N area is generally connected during actual operation. Due to the difference in distance and the retention effect on the road, the initial rainwater in N area may seriously pollute the later clean rainwater in M ​​area, which will also lead to rainwater discharge. The irrationality of the situation

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