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In-situ treatment method for electrically repairing heavy metal contaminated soil based on plastic electrode

An in-situ treatment and polluted soil technology, applied in the restoration of polluted soil, etc., can solve problems such as complex process, achieve good treatment effect, increase pH value, and accelerate the effect of soil purification

Inactive Publication Date: 2015-02-25
江阴市华宏盈飞电渗科技有限公司
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This material is only a conceptual product, there is no physical report, and the process is more complicated

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  • In-situ treatment method for electrically repairing heavy metal contaminated soil based on plastic electrode

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Embodiment Construction

[0028] see figure 1 , the present invention relates to an in-situ treatment method for electrically repairing heavy metal-contaminated soil based on plastic electrodes, which comprises the following steps:

[0029] Step 1. Before starting construction, take soil for experiments to determine the treatment depth of contaminated soil. Determine the depth of contaminated soil treatment, that is, the insertion depth of electrodes, and determine the spacing and arrangement of electrodes.

[0030] Step two, level the site.

[0031] Step 3. For the soil with a water content less than 30%, perform irrigation and pre-soaking to increase the soil water content to 30%-50%; for the soil with a water content greater than 30%, no pre-soaking is required.

[0032] Step 4. Insert a plurality of anode plastic electrodes 6 and a plurality of cathode plastic electrodes 5 vertically at column intervals in the site, and the insertion depth is consistent with the contaminated soil treatment depth ...

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Abstract

The invention relates to an in-situ treatment method for electrically repairing heavy metal contaminated soil based on a plastic electrode. The in-situ treatment method is characterized by comprising the following steps: step I, determining the treatment depth of contaminated soil by performing soil experiment; step II, leveling ground; step III, performing water irrigation and pre-soaking on soil with the water content of less than 30%; step IV, distributing an anode plastic electrode (6) and a cathode plastic electrode (5); step V, distributing a water discharge pipe (3) and a water filling pipe (4); step VI, respectively connecting the cathode plastic electrode (5) and the anode plastic electrode (6) by using conducting wires (2), and gathering the cathode plastic electrode (5) and the anode plastic electrode (6) to be connected to positive and negative electrodes of a direct current power supply (1); and step VII, powering on the direct current power supply (1), and starting electro-osmosis treatment. The in-situ treatment method for electrically repairing the heavy metal contaminated soil based on the plastic electrode, disclosed by the invention, has the advantages that the in-situ treatment method can be used for rapidly reducing the heavy metal content of a soil body, and is relatively high in environmental protection performance.

Description

technical field [0001] The invention relates to an in-situ treatment method for electrically repairing heavy metal polluted soil based on plastic electrodes, and belongs to the technical field of environmental protection. Background technique [0002] With the acceleration of my country's industrialization process, the problem of soil heavy metal pollution has become increasingly prominent. The area of ​​polluted soil is getting larger and larger, which has seriously threatened my country's food security and posed a great threat to the ecological environment and human health. Due to the current urgent situation, it is eager to seek a practical technology for in-situ treatment of heavy metal-contaminated soil. [0003] Electric remediation technology is an emerging remediation technology for heavy metal-contaminated soil. In recent years, there have been many small-scale experimental research reports, and there are also very few engineering application examples. The princi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/08
Inventor 胡士勤胡品飞刘志浩周国钧高明军
Owner 江阴市华宏盈飞电渗科技有限公司
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