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A device for repairing heavy metal polluted soil and its repairing method

A technology of polluted soil and heavy metals, applied in the restoration of polluted soil, climate change adaptation, etc., can solve the problem of less equipment, achieve the effect of improving soil restoration effect, facilitate production and popularization and utilization, and improve restoration effect

Active Publication Date: 2022-07-12
ZHEJIANG FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, there are fewer devices designed specifically for animal remediation of heavy metal-contaminated soils

Method used

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  • A device for repairing heavy metal polluted soil and its repairing method
  • A device for repairing heavy metal polluted soil and its repairing method
  • A device for repairing heavy metal polluted soil and its repairing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] like figure 1 , 2, a device for repairing heavy metal contaminated soil, mainly includes a container 1, a spray device 2, a throwing device 3, a collection device 4 and an electric drive device 5.

[0049] The top of the container 1 is open, and the interior is filled with polluted soil 6. The top wall of the container 1 is provided with support rods 7. There are four support rods 7, which are respectively vertically fixed at the four corners of the top wall of the container 1. . The support rod 7 is retractable, and its height can be adjusted to facilitate the addition of contaminated soil; a base can be provided on the top side wall of the container for plugging and unplugging the support rod, so that the support rod and the container are movably connected. The bottom of the container 1 is provided with a number of filter holes, which are used to discharge the spray liquid, so as to adjust the soil moisture content.

[0050] like figure 1 , 2 As shown in and 4, th...

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Abstract

The invention discloses a device and a repair method for repairing heavy metal polluted soil. The device comprises a rack and a container under the rack for containing the polluted soil and having an open top. The electric driving device for driving earthworms to the soil surface layer, the top of the container is sequentially provided with a throwing device for throwing earthworms into the container and a collecting device for collecting the earthworms driven to the soil surface layer. In the present invention, by setting a throwing device, an electric driving device, a collecting device and cooperating with a corresponding repair method, the clean earthworms are added into the polluted soil, and the earthworms saturated and adsorbed with a large amount of heavy metal pollutants are stripped from the polluted soil. The operation completely realized the removal of heavy metal pollutants in the polluted soil and significantly improved the remediation effect.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a device and a repair method for repairing heavy metal polluted soil. Background technique [0002] The remediation of heavy metal-contaminated soil is a worldwide problem and an urgent task at the same time. The remediation technologies commonly used today include physicochemical remediation and bioremediation; among them, physicochemical remediation includes electrodynamic remediation technology and soil leaching technology, and bioremediation includes animal remediation technology and phytoremediation technology. [0003] Electrodynamic remediation technology is to add a low-voltage direct current electric field to the polluted soil, and under the action of low-intensity direct current, electromigration, electrodialysis, electrophoresis, etc. are generated, so that the pollutants on the surface of soil particles can be desorbed from the soil and oriented. Mig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09C1/00B09C1/02
CPCB09C1/00B09C1/02Y02A40/20
Inventor 柳丹叶正钱
Owner ZHEJIANG FORESTRY UNIVERSITY
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