Step-by-step degradation and removal device for pollutants in city initial rainwater during conveying by pipe culvert

Abstract

The invention proposes a step-by-step degradation and removal device for pollutants in city initial rainwater during conveying by a pipe culvert. The device structurally includes a purification box, abox frame, an interception net, triangular reinforcement frames, a pollution cleaning carrier, fixing sleeve rings, handles, a top cover and clamping buckles; the box frame is arranged on each edge of the purification box, the interception net is spread on the arc-shaped bottom surface and the side surfaces of the purification box, the triangle reinforcement frames are respectively arranged in the centers of the arched side surfaces of the purification box, and the pollution cleaning carrier is packed in the purification box; and the fixing sleeve rings are arranged at the bottom of the purification box, the handles are symmetrically arranged on the left and right sides of the top of the purification box, one side of the top cover is connected to the purification box by a hinge, and the other side is fixedly connected to the purification box by the clamping buckles. The device has the following advantages: 1) the device is installed in the water conveying pipe culvert and has no landoccupation problems; 2) the device has high removal efficiency of the initial rainwater pollutants; 3) the device does not affect the water discharge capacity of an original pipe culvert; 4) the device is simple to install and disassemble, and the carrier packed in the device can be replaced and updated; and 5) the device has low implementation costs, is easy to maintain and manage, and can be promoted and applied on a large scale.

Description

technical field [0001] The invention relates to a device for degrading and removing pollutants in the transportation process of urban initial rainwater pipes and culverts, and belongs to the technical field of urban initial rainwater runoff pollution control. Background technique [0002] With the continuous improvement of sewage treatment equipment and technology, the treatment of urban sewage has gradually shifted from post-treatment to pollution from the source. Therefore, the problem of initial rainwater pollution has become a hot spot at home and abroad. During the confluence process, urban rainfall washes and dissolves various pollutants such as organic matter, pathogens, heavy metals, and grease accumulated on different underlying surfaces such as the atmosphere, asphalt concrete pavement, roof, garbage, and solid waste, and degrades all pollutants in the runoff. Carried pollutants are almost concentrated in the first few millimeters of rainwater. If the initial rain...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a step-by-step degradation and removal device for pollutants in the transportation process of urban initial rainwater pipes and culverts. The initial rainwater purification box, when the initial rainwater flows through, the pollutants in the water body are adsorbed by the porous material-microbial coupling carrier in the box, degraded and removed step by step, reducing the initial rainwater pollution of the water body, and effectively solving the problem of urban initial rainwater pollution; in the middle and late stages of rainfall When a large amount of rainwater flows through, the installed purification box will not affect the normal drainage function of the pipe culvert

Images