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Ecological remediation device and method for electroplating waste land polluted soil

A technology for polluted soil and ecological restoration, applied in the field of soil restoration, can solve the problems of secondary pollution, low phytoremediation efficiency, long restoration period, etc., and achieve the effects of cost reduction, phytoremediation effect enhancement, and low efficiency solution.

Inactive Publication Date: 2015-02-04
东莞市环境科学研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] One of the objectives of the present invention is to provide an ecological restoration device for polluted soil in electroplating abandoned land in view of the deficiencies in the prior art. Using the device to restore polluted soil in electroplating abandoned land has the advantages of economy, environmental protection, high efficiency and short restoration period. characteristics, so as to solve the problems of low efficiency and long repair period of traditional phytoremediation, as well as the problem of secondary pollution caused by the residue and discharge of traditional chemical leaching

Method used

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  • Ecological remediation device and method for electroplating waste land polluted soil
  • Ecological remediation device and method for electroplating waste land polluted soil
  • Ecological remediation device and method for electroplating waste land polluted soil

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Embodiment 1

[0040] Such as figure 1 with figure 2 As shown, the present embodiment provides an ecological restoration device for polluted soil in electroplating wasteland, including a soil ecological restoration pool 1, a nutrient solution regulating tank 2, a first sprayer 3, and a first pump 4. The soil ecological restoration pool 1 includes The rainwater collection tank 11 at the bottom and the contaminated soil accumulation area 12 above the rainwater collection tank 11 are planted with aquatic plants 13 and terrestrial plants 14 in the contaminated soil accumulation area 12; among them, the soil ecological restoration pond 1 has plant absorption, transformation and chemical Double function of rinsing. Since natural rainwater is generally weakly acidic, rainwater in areas with severe acid rain is more acidic. Therefore, when natural rainwater falls to the contaminated soil accumulation area 12, the natural rainwater can leach out precipitated heavy metals; while plants are composed of ...

Embodiment 2

[0056] Such as image 3 As shown, the difference from Embodiment 1 is: the device for ecological restoration of soil contaminated by electroplating wasteland in this embodiment also includes a rainwater collection emergency pool 8, and a fifth pipe passes between one end of the rainwater collection emergency pool 8 and the rainwater collection tank 11 24 connection, the other end of the rainwater collection emergency pool 8 and one end of the ion exchange column 5 are connected through a sixth pipe 25, the other end of the ion exchange column 5 and the second sprayer 6 are connected through a seventh pipe 26, the second sprayer 6 Located above the contaminated soil accumulation area 12, the second pump 7 is set on the sixth pipe 25, and the fifth pipe 24 and the first pipe 20 are both provided with a control valve 9 to control rainwater from the rainwater collection tank 11 into the nutrition The amount and time in the liquid conditioning tank 2 and the rainwater collection emer...

Embodiment 3

[0059] Such as Figure 4 As shown, the difference from Embodiment 1 is that the device for ecological restoration of soil contaminated by electroplating wasteland in this embodiment does not include ion exchange column 5, second sprayer 6 and second pump 7, and the rest is the same as in embodiment 1. Repeat it again.

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Abstract

The invention belongs to the technical field of soil remediation, and in particular relates to an ecological remediation device for electroplating waste land polluted soil. The ecological remediation device comprises an ecological soil remediation pond, a nutrient liquid adjusting pond, a first atomizer and a first sucking pump, wherein the ecological soil remediation pond comprises a rainwater collecting tank positioned at the bottom and a polluted soil piling area positioned above the rainwater collecting tank; aquatic plants and terrestrial plants are planted in the polluted soil piling area; the rainwater collecting tank is connected with the nutrient liquid adjusting pond through a first pipeline; the nutrient liquid adjusting pond is connected with the first atomizer through a second pipeline; the first sucking pump is arranged on the second pipeline; the first atomizer is positioned above the polluted soil piling area. Compared with the prior art, the device has the characteristics of economy, environment-friendliness, high efficiency and short remediation period when being used for remedying electroplating waste land polluted soil. In addition, the invention further discloses an ecological remediation method for electroplating waste land polluted soil.

Description

Technical field [0001] The invention belongs to the technical field of soil remediation, and particularly relates to an ecological remediation device and method for soil contaminated by electroplating wasteland. Background technique [0002] With the development of industry and agriculture, the discharge of toxic mine waste water, urban sewage, industrial waste water, and the application of chemical fertilizers with excessive heavy metal content have led to the continuous expansion of soil pollution. In recent years, with the rapid advancement of my country’s industrial transfer, a large number of heavily polluting electroplating companies have moved into the park or closed down. Although the companies have moved or closed down, the environmental pollution of these companies has not been completely eliminated. The soil and groundwater of the original companies The accumulated pollutants are difficult to degrade naturally in a short period of time. If the original site of the enter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/00B09C1/02
Inventor 曾彩明何觉聪邓杰帆万开王书杰谭伟红
Owner 东莞市环境科学研究所
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