Movable type continuous filter cloth thermal desorption treatment system for soil polluted by organic matter and application

Abstract

The invention relates to a movable type continuous filter cloth thermal desorption treatment system for soil polluted by organic matter. The movable type continuous filter cloth thermal desorption treatment system comprises a soil feeding system, a hot-air system, a filter cloth thermal desorption system, a dedusting and demisting system, an organic waste gas adsorption system, a tail gas treatment system and a control system. The movable type continuous filter cloth thermal desorption treatment system can feed the soil continuously and can be controlled automatically; the treatment amount ofthe polluted soil is large, hot air and the polluted soil are fully mixed on a filter cloth, thus the thermal desorption efficiency is quite high, and the thermal desorption amount is large; and tailgas is treated in an adsorption mode, thus secondary pollution is avoided, environmental protection can be achieved easily, and the cost is low.

Description

technical field [0001] The invention belongs to the technical field of soil remediation, in particular to a mobile continuous filter cloth thermal desorption treatment system for organic matter polluted soil and its application. Background technique [0002] With the adjustment of industrial structure and the development of organic pollutant treatment, a large number of high-polluting enterprises such as steel plants and chemical plants, especially those that produce and use organic pollutants, will be gradually closed or relocated, leaving behind a large amount of high-pollution risk soil. The harm of soil pollution is mainly that some organic matter will pollute the surrounding air and water after polluting the soil, while some organic matter or heavy metal pollutants will pass through the food chain and have adverse effects on the health of surrounding people. The acceleration of urbanization has promoted the transformation of the original land function, and a large amoun...

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Problems solved by technology

[0004] Off-site Treatment Process and Device for Soil Contaminated by Volatile and Semi-volatile Organic Compounds (ZL200410056888.7) announced an off-site treatment process and device for soil contaminated by volatile and semi-volatile organic compounds, but the patent cannot feed continuously, And the polluted soil cannot be treated on site;

[0005] Direct thermal desorption equipment (CN101712042A) announced a direct thermal desorption device for contaminated soil, but the tail gas is treated by incineration, which has the risk of producing dioxins;

[0006] A drum-type reverse thermal desorption system for organic-contaminated soil (CN102029287A) discloses a drum-type reverse thermal desorption system for organic-contaminated soil, but the mixing of hot air and polluted soil is insufficient, the energy consumption is large, and the thermal desorption efficiency is not high enough

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