Periodic composite repair device of arsenic polluted soil

A composite repair and periodic technology, applied in the restoration of contaminated soil, etc., can solve the problems of low repair efficiency, lack of special equipment, arsenic pollution, etc., and achieve the effects of saving costs, improving the level of automatic operation, and strengthening root absorption
CN104368591AInactive Publication Date: 2015-02-25NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
Publication Date
2015-02-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the technical field of soil restoration, and in particular relates to a periodic composite repair device of arsenic polluted soil, the periodic composite repair device includes an electric field generating module, a vegetation restoration layer, a soil PH regulating module and a surfactant spraying module, the electric field generating module includes a power supply and an anode chamber and a cathode chamber, the anode chamber and the cathode chamber are arranged under the ground; the vegetation restoration layer is arranged on the surface layer of a to-be-repaired soil region, the restoration vegetation is ciliate desert-grass, the soil PH regulating module sprays a PH adjusting solution to the anode chamber, the cathode chamber and the to-be-repaired soil region, and the surfactant spraying module sprays a surfactant to the surfactant spraying module. Every steps are closely linked, by the manner of determination of periodic circulation on the basis of the detection value, unnecessary time and cost waste can be avoided, soil and electrode chamber PH can be regulated in real time, the ratio of an acid and alkali liquid tank can be regulated by an automatic control device, the stability is high, arsenic is repaired completely, and finally more than 98% of the arsenic can be repaired.
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Description

technical field

[0001] The invention belongs to the technical field of soil restoration equipment, and in particular relates to an arsenic-contaminated soil variable periodic composite restoration device. Background technique

[0002] my country is one of the countries with serious arsenic pollution. In addition to chemical and agricultural production, arsenic pollution also comes from chemical weapons abandoned and buried in the ground after the Japanese invasion of China after World War II. Arsenic is a carcinogenic and teratogenic element. Pollution of water and soil will pose a huge threat to humans and the ecological environment. Therefore, various researches on arsenic removal have been carried out earlier in my country.

[0003] Commonly used remediation techniques for arsenic-contaminated soil mainly include the following:

[0004] 1. Stable solidification method: first analyze the pollution degree of the pollutants to be treated, and then mix the targeted treatment...

Claims

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