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In-situ obstruction governing method of heavy-metal polluted soil

A technology for polluted soil and heavy metals, applied in the field of polluted soil treatment and restoration, can solve the problems of long treatment period and high cost of heavy metal treatment in soil, and achieve the effects of long-term treatment effect, reduction of secondary pollution, and reduction of risk diffusion.

Inactive Publication Date: 2014-04-23
周昱
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the cost of soil heavy metal treatment is high, and the treatment period is long. The treatment process will cause risks to the environment, such as risks in the excavation process, risks in the transportation process, etc.

Method used

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] see Figure 1 to Figure 2 , the embodiment of the present invention includes:

[0026] An in-situ barrier treatment method for heavy metal polluted soil, comprising the following steps:

[0027] (1) Borehole 1 treatment. Borehole 1 is drilled downward from the ground in the heavy metal contaminated area. The depth of borehole 1 exceeds the maximum depth of polluted soil 2. First, through the investigation of the polluted site, the area of ​​the soil 2 polluted by heavy metals, including its polluted area and...

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Abstract

The invention discloses an in-situ obstruction governing method of heavy-metal polluted soil. The method comprises the following steps of (1) drilling holes; (2) constructing a bottom obstruction layer; (3) constructing an anti-seepage obstruction wall; (4) pumping out underground water; (5) injecting a heavy metal stabilizer; and (6) building a top comprehensive obstruction layer. Through the way, by adopting the in-situ stabilized obstruction technology, the heavy-metal polluted soil can be in-situ governed efficiently, the governing effect is lasting, the economical cost is low, the application range is wide, whether the polluted soil area contains the underground water can be governed, the soil does not need to be dug in a large area, the risk in the digging process and transport process can be avoided, the secondary pollution and risk dispersion problems in the construction process can be greatly reduced, and the operation process is easy to control.

Description

technical field [0001] The invention relates to the technical field of treatment and restoration of polluted soil, in particular to an in-situ barrier treatment method for heavy metal polluted soil. Background technique [0002] Soil heavy metal pollution means that the heavy metal content in the soil is significantly higher than the original content. The heavy metal soil must be treated and repaired, otherwise it will cause the deterioration of the ecological environment quality and great harm to human health. At present, the cost of soil heavy metal treatment is high, and the treatment period is long. The treatment process will cause risks to the environment, such as risks in the excavation process and risks in the transportation process. Contents of the invention [0003] The technical problem mainly solved by the present invention is to provide an in-situ barrier treatment method for heavy metal polluted soil with long-term treatment effect, low economic cost, wide app...

Claims

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Application Information

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IPC IPC(8): B09C1/00B09C1/08
Inventor 周昱刘美云
Owner 周昱
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