Lakeside pollutant-interception greenbelt building method

Abstract

The invention relates to a lakeside pollutant-interception greenbelt building method. The lakeside pollutant-interception greenbelt building method includes optimally optimizing four pollutant-interception units including a shallow gravel trench, a porous pavement, a low-elevation greenbelt and an emergent aquatic plant collocation area, wherein interception control of the shallow gravel trench for runoff pollutants, infiltration buffer of the porous pavement, storage and purification of the low-elevation greenbelt and landscape greening function of the aquatic plant collocation area are given into full play. Compared with the prior art, the lakeside pollutant-interception greenbelt building method realizes effective control on lake-entry runoff pollutants by the aid of filtering, sedimentation and biodegradation, runoff flood peak is reduced by more than 30%, pollutants are removed by more than 30%, pollution load of surface water body such as lakes is reduced, and integrity of water quality and ecological system of lakes is effectively protected.

Description

technical field [0001] The invention belongs to the field of environmental engineering, and in particular relates to a construction method of a lakeside sewage intercepting green belt. Background technique [0002] At present, the high-speed urbanization process has led to the development of natural watersheds and the destruction of vegetation, while the large increase in impervious surfaces such as concrete buildings, roads, commercial areas, residential areas, and parking lots has caused precipitation to seep into the ground and reduce evaporation. caused a substantial increase in surface runoff. Surface runoff scouring the underlying surface will carry a large amount of pollutants into the receiving water body, causing changes in the physical, chemical properties and microbial characteristics of the water body, and even becoming the dominant factor affecting water quality. Some toxic organic substances and heavy metals will cause serious damage to the aquatic ecosystem. ...

AI Technical Summary

Problems solved by technology

Traditional lakeside landscaping projects are mostly a single greening and landscaping or an independent setting of some sewage interception process. However, due to the complex and serious pollution components of surface runoff, it is difficult for a single sewage interception greening process to realize the reduction of runoff volume and runoff pollution. This will lead to a large amount of runoff pollution entering the lake water body, resulting in serious consequences such as eutrophication of the water body

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