Riverside ecological multi-dimensional circulating type wet land slow-flow infiltration pollutant intercepting system

Abstract

The invention discloses a riverside ecological multi-dimensional circulating type wet land slow-flow infiltration pollutant intercepting system which mainly comprises a primary vegetation buffer zone, a hydrophilic platform, an adjusting pond, an ecological retention system and a secondary vegetation buffer zone. The primary vegetation buffer zone is arranged on one river-ward side along the riverside road surface, the gradient is consistent to the gradient of an original bank slope, the downward width along the bank slope is 1.0-1.2m, and the length is 800-1000m. The ecological retention system is provided with a planting soil layer, a filler layer, a reverse osmosis layer and a gravel layer which are sequentially arranged from top to bottom. The riverside ecological multi-dimensional circulating type wet land slow-flow infiltration pollutant intercepting system reduces pollution load caused by surface source runoff flowing into a river channel during the rainy season, achieves the synergic purpose of water channel water quality circulating purification and wet land conservation during the non-rainy season, has good landscape effect and has the reference and guidance effects on surface source pollutant intercepting and river and lake water purification.

Description

technical field [0001] The invention relates to river water environment treatment, in particular to a riverside ecological multi-dimensional circulating wetland slow-flow infiltration sewage interception system applied to interception of non-point source pollution and water quality purification of rivers and lakes. Background technique [0002] Non-point source pollution refers to the large-scale, dissolved or solid pollutants entering the receiving water body under the action of rainwater runoff, thereby causing water body (including surface water, even groundwater) pollution. Setting up a buffer interception system between non-point source (surface) runoff and the river is one of the common methods to effectively reduce the pollution of surface runoff to the river. [0003] The buffer interception system is a system between the terrestrial and aquatic environments that has the ability to intercept non-point source runoff pollutants. It is usually distributed along the wate...

AI Technical Summary

Problems solved by technology

[0004] In the current non-point source pollution control, according to the pollution mechanism, widely used measures include vegetation filter belt, retention / retention system, etc., but the design of these measures is monotonous, especially in the non-rainy season, the maintenance and utilization are slightly weak

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