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Method for constructing road runoff pollution control greening system

A technology of pollution control and road flow, applied in the field of environmental engineering, can solve the problems of poor interception effect of runoff pollution, simple greening method, etc., and achieve the effect of delaying the peak time of rainstorm, prolonging the residence time, and reducing the flow of the road path.

Active Publication Date: 2014-07-23
TONGJI UNIV
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Problems solved by technology

The above-mentioned patents only considered the greening and economic benefits of Pistacia chinensis and palm trees, which is a simple greening method that does not combine with the surrounding environment to build a complete greening system, and the effect of intercepting runoff pollution is not outstanding.

Method used

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  • Method for constructing road runoff pollution control greening system

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Embodiment

[0028] A method for constructing a greening system for road runoff pollution control, which involves the design and construction of a greening and sewage interception system for a hardened road with a green sewage interception area on the side. The cross-sectional view of the construction section is as follows figure 1 As shown, the specific steps are as follows:

[0029] (1) An ecological filter ditch 1 is set between the motorway and the sidewalk. The width of the ecological filter ditch 1 is 1-2m, the depth is 0.8-1.2m, and the elevation is 0.1-0.2m lower than the motorway, forming a pollution intercepting green belt. Then fill the filter material in the sewage intercepting green belt, from top to bottom, it is fly ash 4 with a particle size of 1-3mm, sandstone 5 with a particle size of 10-30mm, and pebbles 6 with a particle size of 50-100mm. The planting layer has a height of 20-25cm. The perennial and short-term waterlogging-resistant ornamental plants that can be planted...

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Abstract

The invention relates to a method for constructing a road runoff pollution control greening system. The method comprises the following steps: designing and constructing a greening pollutant intercepting system on a hardened road with a greening pollutant intercepting area besides, and setting an ecological filter trench between a motor way and a sidewalk to form a pollutant intercepting green belt; filling the pollutant intercepting green belt with filter materials, setting a planting layer on the top of the pollutant intercepting green belt, and setting a grass planting trench on one side, which is close to the green belt, of the sidewalk, wherein fillers fill the grass planting trench, and a planting layer is arranged on the top of the grass planting trench; and setting a retention pond adjacent to the grass planting trench, setting a turf slope at the periphery of the retention pond, and forming a rainwater retention area in the middle of the pond, wherein aquatic plants are planted in the rainwater retention area. Compared with the prior art, the method has the advantages that over 30 percent of pollutants can be removed, and water can be purified.

Description

technical field [0001] The invention belongs to the field of environmental engineering, and in particular relates to a method for constructing a road runoff pollution control greening system. Background technique [0002] With the acceleration of urbanization, the deterioration of urban water environment has become increasingly prominent, and road runoff pollution is one of the sources of urban water pollution. Hardened roads are an important part of urban catchment surfaces. Surface runoff flowing through roads carries a large amount of suspended solids, organic matter, pathogens and other pollutants into urban surface water bodies, making roads one of the main sources of non-point source pollution in urban water bodies. [0003] At present, most urban road rainwater treatment systems are still in the treatment mode of "side ditch - gully outlet - municipal pipeline" or "rapid trough - open ditch / open channel". Green space beside the road. In the case of severe rainstorm ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C11/22C02F3/32C02F3/34A01G1/00
CPCY02A30/60Y02W10/10
Inventor 成水平冯玉琴曹晓艳吴娟代嫣然向东方
Owner TONGJI UNIV
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