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Method for treating road surface runoff contamination

A surface runoff and road technology, applied in the field of environmental engineering, can solve problems such as groundwater pollution and surrounding environmental pollution, and achieve the effect of simple construction method, wide application field and good effect

Inactive Publication Date: 2010-01-06
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This problem was soon exposed, and its seriousness is likely to be the pollution to the surrounding environment
Especially the drainage system on both sides of the road, if it is not properly filtered, it is likely to pollute the ground water

Method used

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  • Method for treating road surface runoff contamination
  • Method for treating road surface runoff contamination
  • Method for treating road surface runoff contamination

Examples

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Effect test

Embodiment 1

[0016] Example 1, see figure 1 , this embodiment of the present invention is to pave two layers of granular vermiculite 2 at the bottom of the ditches 1 of both sides of the expressway or the evaporation pool, and the particle size of the vermiculite 2 is ￠15mm. The vermiculite layer composed of vermiculite 2 carries out adsorption purification treatment on the surface runoff of the road, and removes suspended solids, ammonia nitrogen, and heavy metal ions that sink into the above-mentioned side ditch or evaporation pool.

Embodiment 2

[0017] Example 2, see figure 2 , this embodiment of the present invention is that a common commercially available well-shaped grille 4 is set in the permeation tank 3 on the side of the expressway, and then granular vermiculite 2 is dropped into the grille 4, and the particle size of the vermiculite 2 is ￠40mm , when the surface runoff on the pavement gathers in the infiltration tank through the ditch, the vermiculite layer composed of vermiculite 2 promptly carries out the adsorption purification treatment on the surface runoff as in Example 1.

[0018] The method for treating road surface runoff pollution of the present invention has been tested in many places in the section from Hengshui to Daming in Hebei, China's Daguang Expressway, and it has been proved that the effect is good, fully meeting the design requirements, and the net sewage discharge rate is as high as 95%.

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Abstract

The invention discloses a method for treating road surface runoff contamination, which comprises the following steps of: throwing at least two layers of granular vermiculite with a grain diameter of between 15 and 40mm into side ditches or evaporation ponds or infiltration ponds on two sides of the road to carry out the adsorption type purification and contamination drainage treatment to the contaminants such as suspended matters, ammonia nitrogen and heavy metal ions which gather in the road surface runoff and settle into the side ditches or evaporation ponds or infiltration ponds so as to remove the road surface runoff contamination. The absorption and purification effects of the vermiculite layers used for absorbing and purifying the rainwater in the road surface runoff are obviously better than those of other absorbents such as active carbon. The on-site test result shows that the method has a good effect and is simple in construction method, low in vermiculite cost and wide in application range.

Description

technical field [0001] The invention belongs to the technical field of environmental engineering, and in particular relates to a method suitable for eliminating and treating road (earth) surface runoff pollution and damage to the surrounding environment on expressways. Background technique [0002] At present, the methods to deal with surface runoff pollution of expressway mainly include vegetation control, detention pond, soil infiltration and purification system sewage discharge and wetland system sewage discharge, etc. These methods have played a certain role in the process of dealing with surface runoff pollution of expressways. But as time goes by, the pollutants that appear in surface runoff also accumulate day by day, gradually forming pollution. This problem was soon exposed, and its seriousness is likely to be the pollution to the surrounding environment. Especially the drainage system on both sides of the road, if it is not properly filtered, it is likely to poll...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28
Inventor 刘朝晖秦仁杰周科峰
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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