Tail end rainwater purifying well for separate system rainwater drainage system

Abstract

The invention discloses a tail end rainwater purifying well for a separate system rainwater drainage system. The tail end rainwater purifying well comprises a water inlet and a water outlet, wherein the water inlet and the water outlet are arranged oppositely in the horizontal direction. A connection line between the water inlet and the water outlet is a reference path. A cleaning and digging area, a mud depositing area and a suspended matter separating area are sequentially communicated from the water inlet to the water outlet and arranged inside the tail end rainwater purifying well. The suspended matter separating area is divided into a plurality of channels through a folded plate assembly, wherein the channels are perpendicular to the reference path. The bottoms of the channels are entrances connected with the mud depositing area. The tops of the channels are exits communicated with the water outlet. The folded plate assembly comprises at least two folded plates which are arranged in a mutually parallel mode and are vertically arranged inside the suspended matter separating area. The tail end rainwater purifying well solves the problem that initial rainwater runoff in a rainwater system pollutes receiving water, and promotes suspended matter in rainwater to be deposited and separated in the tail end rainwater purifying well effectively on the basis of an original rainwater well and by utilizing a shallow pool principle and arranging the folded plate assembly.

Description

technical field [0001] The invention relates to a rainwater purification well at the end of a drainage system, in particular to an initial rainwater pollution purification device at the end of a direct-discharge split-flow rainwater drainage system. Background technique [0002] Suspended solids are one of the important pollutants in stormwater runoff. Urban stormwater runoff contains a large amount of suspended solids, which mainly come from the debris produced by the corrosion of vehicles, exhaust gas produced by motor vehicles, atmospheric dry and wet sediments, tires and Substances produced by brake friction and smoke and dust released by residents' chimneys, etc. In addition to its own pollution, suspended solids also adsorb many other pollutants (such as heavy metals, etc.), especially suspended particles with large specific surface area. Before the rainwater runoff in the drainage pipe network is discharged into the receiving water body, the effective removal of susp...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the pollution of the receiving water body by the initial rainwater runoff in the rainwater system, the present invention provides a rainwater purification well at the end of the diversion system rainwater drainage system. Components to promote efficient sedimentation and separation of suspended solids in rainwater in the terminal rainwater purification well

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