Device for degrading POPs pollutants in soil through low-temperature plasma continuous oxidation bed

Abstract

The invention discloses a device for degrading POPs pollutants in soil through a low-temperature plasma continuous oxidation bed. The device comprises a skid-mounted box; a feeding pipe penetrates through one end of the box body; a discharging pipe penetrates through one end, far away from the feeding pipe, of the box body; the top end of the inner wall of the box body is fixedly connected with aconnecting rod; the bottom end of the connecting rod is fixedly connected with a high-voltage discharge electrode; the high-voltage discharge electrode comprises a fixed plate, a movable rod and a high-voltage electrode; the movable rod is movably connected to the lower surface of the fixed plate, the high-voltage electrode is fixedly connected to one end, away from the fixed plate, of the movablerod, a protective shell is fixedly connected to the bottom end of the interior of the box body, and a gas carrying mechanism is fixedly mounted in one end, close to the feeding pipe, of the protective shell. High-activity particles generated by dielectric barrier discharge are used for degrading high-toxicity organic pollutants in soil, and the method has the advantages of continuous system, stable operation, high degradation efficiency and the like.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a method and a device for degrading organic pollutants in soil by a low-temperature plasma continuous oxidation bed. Background technique [0002] With the acceleration of my country's urbanization process and the implementation of industrial structure adjustment policies, the restoration and treatment of industrial sites, abandoned mines and farmland polluted soil, so as to ensure the safety of the ecological environment of human settlements, is a hot spot in the field of environmental protection. [0003] POPs are a kind of natural or toxic substances with long-term persistence, bioaccumulation, semi-volatility and high toxicity, and can migrate long distances through various environmental media (atmosphere, water, organisms, etc.) and cause serious harm to human health and the environment. Synthetic organic pollutants. POPs can persist in the environment, and...

AI Technical Summary

Problems solved by technology

At present, low-temperature plasma technology is limited to laboratories and semiconductor industries, and is rarely used in environmental protection fields such as "three wastes treatment", especially contaminated soil remediation.

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