Expressway rainwater sustainable collection and purification device

Abstract

The invention discloses a rainwater sustainable collection and purification equipment for highways, which relates to the technical field of rainwater collection, and comprises water collecting ditches arranged on one or both sides of the expressway, and the top of the water collecting ditches is covered with a water ditch cover with filter holes A water collection pipe is laid on the bottom of the inner ditch of the water collection ditch, and several filter holes are evenly arranged on the surface of the water collection pipe. It also includes a sand filter treatment well, multiple grass planting ecological side ditches, and a reservoir. There are three layers of discs with holes in sequence, and the water collection pipes are connected downwards in a stepped manner to the bottom of the discs with holes in the lowest layer. There is a reserved water storage pool outside the sand filter treatment well, which is collected through the water storage pipes to the reserved storage. The rainwater in the pool is sprayed from top to bottom into the sand filter treatment well through the spray pipe and circulation pump. Through the implementation of the technical solution, the problem that the three-layer disc with holes will be blocked due to the self-settling effect of sand and mud for a long time will still cause rainwater to be unable to be discharged or cause secondary pollution to collected rainwater.

Description

technical field [0001] The invention relates to the technical field of rainwater collection, and more particularly relates to a sustainable rainwater collection and purification equipment for highways. Background technique [0002] With the rapid development of my country's expressway industry, my country's expressway mileage has exceeded 100,000 kilometers, ranking first in the world. As a good rainwater collection surface, the expressway pavement has a large runoff coefficient and a high utilization rate. If we can effectively collect rainwater from highways, it will play a positive role in solving the problem of water shortage in some areas. At the same time, the rainwater collection of expressways not only achieves the resource utilization of rainwater, but also alleviates the corresponding road surface water, runoff pollution and damage to the subgrade structural surface to a certain extent. Transforming temporally and spatially discontinuous and unstable rainwater re...

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a sustainable rainwater collection and purification equipment for highways, to solve the prob...

Images