Device for restoring soil contaminated by organic arsenic compounds and method for achieving restoration by means of device

Abstract

The invention relates to the technical field of soil restoration, in particular to a device for restoring soil contaminated by organic arsenic compounds. The device comprises a centralized treatment shed and multiple treatment hoods which are arranged in the centralized treatment shed at intervals, and the treatment hoods are equipped with multiple microwave restoration devices; and the device further comprises multiple chemical agent conveying pipelines and multiple chemical agent output pipelines, the chemical agent conveying pipelines penetrate through the upper portions of the side walls of the treatment hoods to extend into the interiors of the treatment hoods, the chemical agent output pipelines penetrate through the lower portions of the side walls of the treatment hoods to extend into the interiors of the treatment hoods, and the side walls of the chemical agent conveying pipelines and the side walls of the chemical agent output pipelines are each provided with multiple injection orifices. The invention further provides a method for restoring the soil contaminated by the organic arsenic compounds by means of the restoration device. By means of the device and the method, the standby time of the soil is shortened, resource waste is reduced, the restoration time is shortened, the restoration efficiency is improved, and the restoration effect is improved.

Description

technical field [0001] The invention relates to the technical field of soil remediation, in particular to a remediation device for soil contaminated by organic arsenic compounds and a method for remediation thereof. Background technique [0002] Soil is not only an agricultural production resource, but also an environmental factor. Most of the pollutants in the world end up in the soil, causing the soil to become a gathering place for various man-made pollutants and natural pollutants on the earth. Among them, the frequent local arsenic poisoning incidents in recent years have made people gradually aware of arsenic pollution. hazards. Arsenic pollution refers to environmental pollution caused by arsenic or its compounds. The mining and smelting of arsenic and arsenic-containing metals, the production of glass, pigments, technical materials, and paper using arsenic or arsenic compounds as raw materials, and the burning of coal can all produce arsenic-containing waste water,...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the defects of low remediation efficiency and high cost of soil remediation devices in the prior art, thereby providing a remediation device for soil contaminated by organic arsenic compounds

[0006] The purpose of the present invention is also to solve the problem of long idle time of polluted soil in the prior art, resulting in a certain waste of resources, long microwave irradiation time, insufficient oxidation of trivalent arsenic, low restoration efficiency, and the harvesting interval of hyper-enriched plants. Short time, high cost defects, thus providing a remediation method for organic arsenic compound-contaminated soil

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