Unpowered stepped type purification system for ecological revetment of river channel

Abstract

The invention relates to an unpowered stepped type purification system for ecological revetment of a river channel. The system comprises a water pumping system, a water reservoir and a stepped type revetment, wherein the water pumping system comprises a water inlet pond which is communicated with the river channel through a water inlet pipe; the lower part of the water inlet pond is communicated with a hydraulic ram water inlet in a pump pond through a water pipe; a hydraulic ram water outlet in the pump pond is communicated with an upward lifting pipe lower port; a lifting pipe upper port iscommunicated with the water reservoir; the stepped type revetment comprises stepped type multi-stage common-wall purification tanks, and a first-stage purification tank at the upper part shares the wall with the water reservoir; a retaining wall between the first-stage purification tank and the water reservoir is a perforated water distribution wall; a water collecting tank is communicated with one side, close to the river, of the last-stage purification tank and communicated with the river through a water outlet pipe; each purification tank is filled with a substrate layer, and plants are planted in the substrate layer. The system is simple in structure, existing space of the river channel and kinetic energy of the river can be effectively utilized to intercept non-point source pollution,the purification effect of the river channel is fully played, the effect is good, and economic and social benefits are remarkable.

Description

technical field [0001] The invention relates to the ecological protection of rivers, in particular to a non-powered stepped ecological slope protection and purification system for rivers. Background technique [0002] With the rapid development of human society and economy, the discharge of pollutants such as industrial point sources and agricultural non-point sources continues to increase. Although the country has relatively mature technologies for the treatment of point source pollutants such as urban sewage, its discharge standards There is still a large gap between the surface water and the V-level water quality requirements, and the non-point source pollution that enters the water body with rainfall and runoff also lacks effective control methods, resulting in varying degrees of pollution in my country's rivers. Therefore, how to save land and power resources to the greatest extent and give full play to the role of rivers in pollutant purification has become extremely im...

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Problems solved by technology

[0004] In view of the above situation, in order to overcome the defects of the prior art, the object of the present invention is to provide a kind of non-powered stepped ecological slope protection purification system for the river, which can effectively solve the problem that the current ecological slope protection only intercepts and purifies non-point source pollution, and does not have the function of purifying river water. The problem

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