Rainwater runoff strengthening treatment and recycling parking space and sidewalk system

Abstract

The invention relates to rainwater treatment and recycle, and provides a rainwater runoff strengthening treatment and recycling parking space and a sidewalk system. A waterproof layer, a pebble supporting layer, an adsorptive filler layer, a filter filler layer, a steel grating plate layer and a permeable layer are sequentially arranged in a pit with depth of 1.2 to 1.5 meters from bottom to top;the system also comprises a recycle water well which takes the waterproof layer as the well bottom, takes concrete as the well wall and penetrate other layers; and a water collecting pipe layer is horizontally arranged in the pebble supporting layer, and the water collecting pipe layer consists of water collecting pipes connected across and provided with holes, wherein one or more water collecting pipes are connected to the recycle water well through an opening on the wall of the recycle water well. The system has multiple functions of water penetration, filtration, adsorption, storage, rainwater recycle and the like, and can quickly and efficiently reduce urban rain flood; and specific rainwater treatment fillers can be selected according to the pollution characteristics of regional rainwater runoff, so that the blockage of the lower basic filler is avoided, the accommodating capacity of the system on pollutants is increased and the service life of the system is prolonged.

Description

technical field [0001] The invention belongs to the field of rainwater treatment, and relates to a rainwater recovery and utilization system, in particular to a rainwater runoff enhanced treatment reuse parking space and sidewalk system. Background technique [0002] With the continuous acceleration of the urbanization process, the proportion of non-permeable underlying surfaces in my country's cities is increasing, which seriously reduces the natural infiltration process of rainwater. A large area of ​​urban impermeable underlying surface will inevitably cause urban flooding, and at the same time, due to the increase of rainwater runoff, it will also cause serious urban non-point source pollution. The concept of international sustainable urban development emphasizes increasing the water permeability of the underlying surface of the city, restoring the infiltration process of rainwater, and reducing rainwater runoff and rainwater runoff at the source of rainwater runoff with...

AI Technical Summary

Problems solved by technology

[0004] Most of the existing invention patents for rainwater in-situ permeable purification parking spaces / sidewalks are simple combinations of permeable bricks, common basic materials and water storage spaces. In order to ensure the mechanical structure of the underlying foundation, the building filler needs to be compacted, bonded, and leveled. The permeability is objectively reduced. After long-term operation, the solid matter in the rainwater will inevitably block the underlying structure, further reducing the permeability, making the rainwater unable to infiltrate effectively, and forming a lateral flow in the lower layer of the permeable brick; this type of ordinary basic structure is also Cannot effectively remove soluble pollutants in stormwater runoff, especially soluble nitrogen and phosphorus

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