Method and device for obtaining uniform electric field for electrically repairing polluted soil

A technology of electrodynamic repair and uniform electric field, which is applied in the restoration of polluted soil, etc. It can solve the problems of electric restoration of polluted soil, difficulty in forming a uniform electric field, and inability to solve the distribution of electric field, so as to achieve good restoration effect, low cost and save time and cost effects
CN103706622AActive Publication Date: 2014-04-09JIANGSU DDBS ENVIRONMENT REMEDIATION
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU DDBS ENVIRONMENT REMEDIATION
Publication Date
2014-04-09

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Abstract

The invention discloses a method for obtaining a uniform electric field for electrically repairing polluted soil. The method comprises the following steps: digging grouped channels or grooves of certain widths and depths at certain intervals in a field needing soil repair; filling current-conducting carbon particles being phi1.5-phi5 millimeters in particle sizes into the grouped channels or grooves; placing leading-in terminals of a power supply into the current-conducting carbon particles in the grouped channels or grooves to form parallel electrodes, wherein the number of the electrodes is 2*N or 3*N, and N is a positive integer. By adopting the method, a uniform soil repair electric field can be provided, spindle type electric field distribution is eliminated, and the problems of the need of repairing microorganism-polluted soil with a completely symmetrical electric field and the like are particularly solved. Compared with the distribution of linear electrodes or matrix electrodes, the method has the advantages of simplicity and easiness in making electrodes, low cost and higher efficiency.
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Description

technical field

[0001] The invention relates to a method for electrokinetic restoration of polluted soil, in particular to a method and a device for obtaining a uniform electric field for electrokinetic restoration of polluted soil. Background technique

[0002] The electrokinetic remediation technology (Electrokinetic remediation) of polluted soil is a green remediation technology that emerged in the 1990s. The basic principle of remediation of heavy metal-contaminated soil is to apply direct current in the soil / site to form a direct current electric field between the two electrodes, driving heavy metal ions to migrate along the direction of the electric field, thereby enriching the pollutants to the cathode area, and then passing through the electric field. Sedimentation, ion exchange and other methods can be separated to achieve the goal of restoration. The mechanism of remediation of organic polluted soil is more complex, mainly using various electrokinetic effects and ...

Claims

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