Initial rainwater interception purification and later rainwater drainage ecological slope protection system

Abstract

The invention discloses an initial rainwater interception purification and later rainwater drainage ecological slope protection system comprising a plurality of rainwater collection devices for collecting drained rainwater, and a plurality of ecological slope protection bricks. The ecological slope protection bricks are connected with one another and are used for purifying the rainwater collectedby the rainwater collection devices. The rainwater collection devices are provided with fixing plates which can be inserted into the ground, and the rainwater collection devices are fixed to a riverbank. The ecological slope protection bricks and the rainwater collection devices are connected so that surface runoff can accurately flow into ditches of the ecological slope protection bricks from therainwater collection devices. The upper, lower, left and right ecological slope protection bricks can also be connected, thus the laid ecological slope protection bricks can be tightly connected intothe ditches, and drainage smoothness is ensured. Filling filter material filtration sponge and waterproof honeycomb activated carbon are put in an initial ditch, and solid pollutants, liquid pollutants and the like in surface rainwater can be purified out. The ecological slope protection bricks can maintain riverbank soil by being embedded into riverbank soil, rainwater washing to the riverbank is reduced, and water and soil loss of the riverbank is prevented.

Description

technical field [0001] The invention relates to the field of surface runoff purification, in particular to an ecological slope protection system for initial rainwater interception and purification and later rainwater discharge. [0002] technical background [0003] In recent years, with the widespread occurrence of extreme weather (such as heavy rain, etc.) and the acceleration of urbanization, excessive rainwater accumulation, inconvenient drainage, and urban waterlogging have become more serious. The reduction of urban surface rainwater infiltration capacity has made rivers and lakes become The main place for rainwater discharge. However, due to the early stage of rainfall, the rainwater dissolved a large amount of polluting gases such as acid gas, automobile exhaust, and factory exhaust gas in the air. The pollution level of rainwater is relatively high, even exceeding the pollution level of ordinary urban sewage. After being discharged into the river, it has caused a ce...

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Problems solved by technology

[0006] In order to overcome the deficiencies of the above-mentioned prior art, and aiming at the phenomenon that surface rainwater runoff non-point source pollution is becoming more and more serious and becomes the main source of urban river pollution, the present invention proposes an ecological slope protection system for initial rainwater interception and purification and later rainwater discharge. The purpose is not to affect the normal discharge of surface rainwater runoff, and at the same time, according to the amount of rainfall, the initial rainwater interception and purification of surface rainwater runoff and the rapid discharge of later rainwater can be achieved, effectively solving the problem of surface rainwater runoff polluting rivers and lakes

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