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Device for treating soil polluted by persistent organic pollutants through low-temperature plasmas

A low-temperature plasma and polluted soil technology, which is applied in the field of organic polluted soil remediation, can solve the problems of poor effect and low remediation efficiency of persistent organic matter-contaminated soil, and achieves the effects of high processing efficiency, simple structure and uniform processing.

Inactive Publication Date: 2017-05-31
SOUTHWESTERN INST OF PHYSICS +1
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Problems solved by technology

[0009] In view of the above-mentioned prior art, the object of the present invention is to provide a device for treating persistent organic matter-contaminated soil with low-temperature plasma, so as to solve the problems of low repair efficiency and poor effect of the prior art on persistent organic matter-contaminated soil

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  • Device for treating soil polluted by persistent organic pollutants through low-temperature plasmas
  • Device for treating soil polluted by persistent organic pollutants through low-temperature plasmas

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Embodiment Construction

[0031] A device for treating POP-contaminated soil with low-temperature plasma according to the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] Such as figure 1 and figure 2 As shown, a low-temperature plasma treatment device for POPs-contaminated soil of the present invention includes a low-temperature plasma high-voltage power supply 1, a reactor 2, a rotating rod 3, an air inlet 4 and an air inlet 5;

[0033] The low-temperature plasma high-voltage power supply 1 provides high-voltage electricity to the reactor 2 for generating plasma in the reactor 2;

[0034] The two sides of the reactor 2 are provided with an air inlet 4 and an air inlet 5, and the reactor 2 is evacuated through the air outlet 4, and the inside of the reactor 2 is filled with working gas through the air inlet 5;

[0035] The reactor 2 is provided with a rotating rod 3, and the rotating rod 3 is connected to an externa...

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Abstract

The invention belongs to the technical field of organic polluted soil restoration and particularly relates to a device for treating soil polluted by persistent organic pollutants through low-temperature plasmas. The device comprises a low-temperature plasma high voltage power source, a reactor, a rotating rod, a gas extraction opening and a gas inlet. Firstly, the polluted soil is put into the reactor, then vacuum extraction is conducted on the reactor through the gas extraction opening, and working gas is inflated into the reactor through the gas inlet; secondly, the reactor is driven by an external driving device to rotate through the rotating rod, and the polluted soil is driven to roll over vertically in the reactor; and finally, high voltage power is supplied to the reactor by the low-temperature plasma high voltage power source, the plasmas are generated in the reactor, and treatment of the polluted soil is started. According to the device, a physical-chemical reaction occurring between strong-oxidation free radicals generated by the low-temperature plasmas and plasmas generated by organic pollutant molecules is utilized, and the persistent organic pollutants can be effectively oxidized and decomposed; the soil polluted by the persistent organic pollutants can be treated; treatment efficiency is high; in addition, materials are easy to load and unload; and the device is convenient to operate.

Description

technical field [0001] The invention belongs to the technical field of remediation of organic polluted soil, and specifically relates to a device for treating persistent organic matter polluted soil with low-temperature plasma. Background technique [0002] In recent years, China's soil pollution has become increasingly serious. Urban and rural soils have been polluted to varying degrees, especially the pollution of soil by persistent organic compounds, which has attracted more and more attention in our country, and it is urgent to repair the polluted soil. . [0003] Different from conventional pollutants, persistent organic pollutants (Persistent Organic Pollutants, POPs) stay in the environment for a long time, are extremely difficult to degrade, have complex components, and are highly toxic. Sexual migration poses a huge hazard to human health. [0004] Persistent organic pollutants not only have "three causes" effects (carcinogenic, teratogenic, and mutagenic), but al...

Claims

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Application Information

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IPC IPC(8): B09C1/08
CPCB09C1/085
Inventor 常兰苗加庆程精涛崔巍陈磊
Owner SOUTHWESTERN INST OF PHYSICS
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