Device for treating volatile organic polluted soil by utilizing clean tail gas of power plant

Abstract

The invention discloses a device for treating volatile organic polluted soil by utilizing clean tail gas of a power plant. The treatment device consists of a soil remediation bin, a suction fan, a condenser, sewage treatment equipment, tail gas treatment equipment, a valve and a connecting pipeline. In the treatment device, nontoxic steam of the power plant, which is cleaned through desulfurization, denitration and dust removal and the like, serves as a steam supply source, and forcedly thermally desorbs volatile organic pollutants in the soil through the high temperature and high humidity characteristics of the nontoxic steam. The device integrates steam supply and pollutant collection, can realize high-efficiency remediation of the volatile organic polluted soil, solves the problems of treatment of the tail gas in the power plant and high-value recycling of the tail gas, and provides technology and equipment for the treatment and remediation of the organic polluted soil.

Description

technical field [0001] The invention discloses a device for treating soil polluted by volatile organic compounds by using clean tail gas of a power plant, which belongs to the category of mechanical equipment. Background technique [0002] At present, organic compound pollution has surpassed heavy metal pollution and radioactive pollution and has leapt to the first place. The farmland polluted by various organic pollutants (pesticides, petroleum hydrocarbons and PAHs, etc.) in China has reached 3.6×10 7 hm 2 , of which the area of ​​seriously oil-polluted land due to oilfield exploitation reaches 1×10 4 hm 2 , and is growing at a rapid rate every year. At present, there are more than 8 million kinds of chemicals in the world, and more than 1,000 new chemicals enter the market every year, most of which are organic substances. Among the 120 priority pollutants listed by the U.S. Environmental Protection Agency (EPA), 114 are organic compounds, of which volatile organic com...

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Problems solved by technology

[0006] Due to the late start of my country's soil remediation industry and lack of experience, most of the technology and equipment are imported from abroad, resulting in increased repair costs, prolonged cycle and low efficiency.

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