Separate-zone rainwater flow, regulation and storage, and on-line treatment system with obvious initial rainwater feature under separate system and mixed flow system

Abstract

The invention relates to a separate-zone rainwater flow, regulation and storage, and on-line treatment system with obvious initial rainwater features under separate system and a mixed flow system, and belongs to the rainwater treatment technology field. The system comprises a rainwater branch pipe, a sewage branch pipe, and a sewage header pipe. A whole pipe network area is divided, according to mesh separation, rainwater treatment separate zones each of which is 0.2-4 square kilometers in area. Each rainwater treatment separate zone includes a rainwater branch pipe, a sewage branch pipe and a rainwater flow well. Each sewage branch pipe is communicated with the sewage header pipe. The sewage header pipe is communicated with a sewage treatment plant. A rainwater inlet of each rainwater flow well is communicated with the rainwater branch pipe. The system also comprises a regulation and storage on-line combination system, which includes a water inlet and a water outlet. A clear water outlet of each rainwater flow well is communicated with the water inlet of the regulation and storage on-line combination system. A sewage outlet of each rainwater flow well is communicated with the sewage header pipe. The water outlet of the regulation and storage on-line combination system is communicated with natural water.

Description

technical field [0001] The invention belongs to the technical field of rainwater treatment, and in particular relates to a system for fragmentation abandonment, regulation and storage, and on-line treatment with obvious characteristics of initial rainwater under a split flow system and a mixed flow system. In particular, it relates to a split flow, regulation and storage and online treatment system with obvious early rainwater characteristics under the diversion system and the mixed flow system, which are used for online treatment when the outlet water elevation of the storage tank is lower than the design flood level of the receiving water body. Background technique [0002] In the prior art, for the entire pipeline network area of ​​the slice, the online treatment and storage tanks are used to filter and purify the initial rainwater in various pipelines that usually discharge the initial rainwater in the city, and the filtered and purified on-line treatment storage tanks T...

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Problems solved by technology

[0002] In the prior art, for the entire pipeline network area of ​​the slice, the online treatment and storage tanks are used to filter and purify the initial rainwater in various pipelines that usually discharge the initial rainwater in the city, and the filtered and purified on-line treatment storage tanks The rainwater will be directly discharged into the natural water body, but the on-line processing storage tank is generally built in a low-lying place. When there is heavy rainfall or other special circumstances in the city, the water level of the natural water body is higher than the elevation of the online processing storage tank. The online processing of rainwater in the storage tank cannot be discharged smoothly, resulting in the stagnation of rainwater in the overall urban rainwater pipeline, thus causing waterlogging

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