Rainwater sewage interception and purification device based on sponge city

Abstract

The invention provides a rainwater sewage interception and purification device based on a sponge city, and relates to the technical field of rainwater sewage interception and purification. The devicesolves the problems that a rainwater sewage interception device in the prior art mostly adopts a sewage interception hanging basket to intercept sundries such as leaves and branches contained in rainwater, but once there are too many intercepted sundries such as the leaves and the branches, meshes of the sewage interception hanging basket can be blocked, the permeation efficiency of the rainwateris affected, and the rainwater overflow phenomenon occurs at a rainwater sewage interception part due to the low permeation efficiency of the rainwater under the rainy day condition. The rainwater sewage interception and purification device based on the sponge city comprises a pre-buried rainwater conveying mechanism, and the pre-buried rainwater conveying mechanism is pre-buried in a rainwater pipe duct part. Even if a small amount of sundries such as the leaves and the branches fall into a secondary filtering interception mechanism along a gap between the outer circumferential surface of a circular plate B and the inner circumferential surface of a cylinder, the small amount of sundries such as the leaves and the branches can also be intercepted by a U-shaped geotextile filter bag, and the sundries such as the leaves and the branches are prevented from flowing into a rainwater inlet branch pipe.

Description

technical field [0001] The invention belongs to the technical field of rainwater interception and purification, and more specifically relates to a rainwater interception and purification device based on a sponge city. Background technique [0002] The collection and utilization of rainwater has become particularly important. Due to the serious pollution of rainwater, it cannot be directly discharged into the receiving water body. [0003] At present, the rainwater sewage interception device mostly uses the sewage interception hanging basket to intercept the leaves, branches and other sundries contained in the rainwater, but once the intercepted leaves, branches and other sundries are too much, it will block the sewage interception hanging basket. Mesh holes affect the penetration efficiency of rainwater, resulting in rainwater overflow at the rainwater interception site due to the low penetration efficiency of rainwater under rainy conditions. Contents of the invention ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above technical problems, the present invention provides a rainwater interception and purification device based on the sponge city, to solve the problem that the existing rainwater interception devices often use the sewage interception hanging basket to intercept the leaves, branches and other sundries contained in the rainwater, However, once there are too many intercepted leaves, branches and other sundries, it will block the mesh of the sewage interception hanging basket and affect the penetration efficiency of rainwater. The problem of rainwater overflow

Images