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Soil leakage liquid and surface runoff interception and purification system and method suitable for heavy metal pollution areas in south

A surface runoff and purification system technology, applied in the field of environmental protection and ecological engineering, to achieve the effects of reducing soil erosion, strong system stability and sustainability, and low operation and maintenance management costs

Active Publication Date: 2014-05-14
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above technologies have achieved certain results in the control of agricultural non-point source pollution and the treatment of polluted water bodies, but there are few examples of application in the control of heavy metal pollution diffusion

Method used

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  • Soil leakage liquid and surface runoff interception and purification system and method suitable for heavy metal pollution areas in south
  • Soil leakage liquid and surface runoff interception and purification system and method suitable for heavy metal pollution areas in south
  • Soil leakage liquid and surface runoff interception and purification system and method suitable for heavy metal pollution areas in south

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] see Figure 1 to Figure 3 ,, the soil seepage and surface runoff interception and purification system suitable for heavy metal polluted areas in the south includes a seepage and runoff collection system, a seepage and runoff treatment system connected to the seepage and runoff collection system through a well; The seepage and runoff collection system is a dark ditch 12 built on the edge of the polluted area 11. The dark ditch 12 is composed of gravel layer 1, A adsorption filler layer 2 and original soil layer 3 from bottom to top. The original soil layer 3 planting plants; the seepage and runoff treatment system is composed of the first level vertical underflow unit 4, the second level vertical underflow unit 5 and the third level vertical underflow unit 6 connected in series through the well 10, each level of vertical underflow From the bottom to the top, the units are the stone particle layer 7, the B adsorption packing layer 8 and the fine sand layer 9, and wetland ...

Embodiment 2

[0059] The configuration of plants planted on the original soil layer 3 in the soil seepage and surface runoff interception and purification system suitable for heavy metal polluted areas in the south is shown in Table 4, and other structures are the same as in Example 1:

[0060] Table 4

[0061] Plant community configuration combination: industrial raw material plants + pioneer plants + landscape plants

[0062]

Embodiment 3

[0064] The configuration of plants planted on the original soil layer 3 in the soil seepage and surface runoff interception and purification system suitable for heavy metal polluted areas in the south is shown in Table 5, and other structures are the same as in Example 1:

[0065] table 5

[0066] Plant community configuration combination: energy plants + pioneer plants + landscape plants

[0067]

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Abstract

The invention relates to a soil leakage liquid and surface runoff interception and purification system and a soil leakage liquid and surface runoff interception and purification method suitable for heavy metal pollution areas in the south. The system and the method are mainly used for controlling pollution dispersion in the heavy metal pollution areas and comprise the functions of intercepting water and soil loss in the pollution areas, purifying soil leakage liquid and runoff and repairing and enhancing degraded wetland. The system and the method are low in building, operation, maintenance and management costs, avoid energy consumption, have good interception and purification effects, can reduce the water and soil loss quantity in the pollution areas by over 90 percent, can treat water discharged from the system so as to enable the water quality to reach the national Environmental Quality Standard for Surface Water (GB3838-2002) and the III standard of the Quality Standard for Ground Water (GB / T14848-93), have a wide technological adaptive range, and can be popularized and applied in different types of heavy metal pollution areas in the south.

Description

technical field [0001] The invention belongs to the technical field of ecological engineering in the field of environmental protection, and specifically relates to a system and method for intercepting and purifying soil seepage and surface runoff suitable for heavy metal polluted areas in southern China. The system and method are mainly used for intercepting and controlling soil erosion in heavy metal polluted areas and heavy metal pollution, and maintain the ecological security of the surrounding area. Background technique [0002] The soil in heavy metal polluted areas is not only the receptor of pollutants from mining, smelting and other industrial enterprises, but also the source of pollution in the surrounding areas. Soil erosion caused by precipitation, especially the water and soil loss caused by heavy rains, will lead to the spread of pollution and affect the soil and water environment in the surrounding areas. Harm. Soluble metal ions and compounds in polluted soil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09C1/00C02F9/14
Inventor 吴晓芙蒋丽娟文仕知周训芳陈永华林杨
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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