Fluidized plasma soil remediation device

A plasma and soil remediation technology, applied in the restoration of polluted soil, etc., can solve the problems of unsuitable heavily polluted soil and high pollution concentration, and achieve the effect of enhancing the remediation effect, increasing the scale and increasing the output.

Pending Publication Date: 2022-07-26
ZHEJIANG UNIV
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Problems solved by technology

[0007] The above patent documents all use plasma technology as the main oxidation performance to repair the soil, and use the conveyor belt to move the soil in the discharge area, thereby increasing the processing capacity of the device, but the single passage of the soil through the discharge area fails to make better use of the plasma discharge process. The active substances produced are not suitable for heavily polluted soils and high pollution concentrations

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  • Fluidized plasma soil remediation device
  • Fluidized plasma soil remediation device

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Embodiment Construction

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be pointed out that the following embodiments are intended to facilitate the understanding of the present invention, but do not have any limiting effect on it.

[0032] like figure 1 and figure 2 As shown, a fluidized plasma remediation soil device includes a fluidized plasma device, a high-voltage power supply 66 and a bag filter 7, wherein the fluidized plasma device from top to bottom includes a top buffer 5, a flow Chemical plasma chamber 6 and bottom feed bin 3 .

[0033] In this embodiment, the interior of the fluidized plasma chamber 6 is of a bobbin type, which ensures sufficient discharge and facilitates the flow of soil in the discharge space.

[0034] The plasma generation method is a dielectric barrier discharge method. The fluidized plasma chamber 6 is provided with a coaxial structure consisting of an inner electrode 61 ...

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Abstract

The invention discloses a fluidized-state plasma soil remediation device which comprises a fluidized-state plasma device, a high-voltage power supply and a bag-type dust collector, and the fluidized-state plasma device comprises a top buffer area, a fluidized-state plasma cavity and a bottom feeding bin from top to bottom; a coaxial structure consisting of an inner electrode, a dielectric material and an outer electrode which is tightly attached to the dielectric material and is grounded is arranged in the fluidized-state plasma cavity; a feeding port and an air outlet are formed in the side face of the bottom feeding bin, and the air outlet is connected with a bag-type dust A discharging opening is formed in the lower end of the bottom feeding bin; an air inlet and a circulating discharging port which are opposite to each other are formed in the lower portion of the bottom feeding bin, the air inlet is connected with a fan through a pipeline, and the circulating discharging port is communicated with the top buffering area through a conveying pipe. By means of the device, the contaminated soil remediation effect can be enhanced on the premise that the treatment capacity of the device is guaranteed, and the device can be suitable for heavily-contaminated soil.

Description

technical field [0001] The invention relates to the field of plasma application, in particular to a fluidized plasma repairing soil device. Background technique [0002] In recent years, the problem of soil pollution has received extensive attention, especially the soil around chemical plants, and the soil left over after the relocation of chemical products, contains a large amount of chemical substances, such as persistent organic pollutants (Persistent Organic Pollutants, POPs). [0003] Among them, some persistent organic pollutants, especially organochlorine pesticides (666, DDT, hexachlorobenzene, etc.), POPs can not only diffuse laterally and deeply in the soil, but also have semi-volatile and spatial Diffusion and transfer exist, and it is noted in the literature that hexachlorobenzene has been detected at concentrations of 7-32 pg / m3 in the air above the Arctic. Therefore, appropriate measures should be taken to remediate contaminated soil in POPs-contaminated areas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/00
CPCB09C1/00
Inventor 刘振张硕闫克平张诗豪
Owner ZHEJIANG UNIV
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