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Heat strengthening vapor extraction contaminated soil remediation device and method thereof

A technology for extracting pollution and soil remediation, applied in the restoration of polluted soil, chemical instruments and methods, separation methods, etc., can solve the problems of high cost of extraction equipment and difficulty in popularization

Active Publication Date: 2017-11-03
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method has a good treatment effect on pollutants, but the cost of the extraction device is high and it is difficult to popularize

Method used

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  • Heat strengthening vapor extraction contaminated soil remediation device and method thereof
  • Heat strengthening vapor extraction contaminated soil remediation device and method thereof
  • Heat strengthening vapor extraction contaminated soil remediation device and method thereof

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Embodiment Construction

[0030] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] In the present invention, the polluted soil heap to be treated specifically refers to the polluted soil mainly containing volatile and semi-volatile organic pollutants, and the pollutants include alkanes, aromatic hydrocarbons, esters, aldehydes, etc., and the common ones are benzene, Toluene, xylene, styrene, trichloroethylene, chloroform, etc.

[0032] According to the specific conditions of contaminated soil, it needs to be pretreated, but the specific pretreatment process can be set according to actual needs. Soil pollution caused by emergencies (such as leakage of oil tankers, rupture of oil pipelines, etc.) is directly treated with gas phase extraction equipment to prevent pollutants from entering the atmosphere and water; the remaining contaminated soil can be piled up in advance. The body is crushed and dried before further pr...

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Abstract

The invention discloses a heat strengthening vapor extraction contaminated soil remediation device and a method thereof, and belongs to the field of environmental protection equipment. The device comprises a plurality of vapor extraction devices and a vapor extraction system, wherein the vapor extraction devices operate independently; the vapor extraction system is formed by a valve, a pipeline, a condenser, a gas-liquid separator, a dust removal device, a pressure gage, a vacuum pump, an activated carbon adsorption device, a liquid waste disposal device and other devices. The surface of a box of each vapor extraction device is mainly formed by a heating resistor layer, a heat resistance layer, an insulating layer and a waterproof cloth layer. The device and method solve the defects existing in traditional remediation methods, especially can effectively cope with sudden soil contamination accidents such as leakage of oil tank trucks and fracture of oil transportation pipelines, and have good maneuverability.

Description

technical field [0001] The invention relates to the field of environmental protection equipment, in particular to a contaminated soil remediation technology, in particular to a heat-enhanced gas-phase extraction contaminated soil remediation device and method thereof. Background technique [0002] As the basis of industrial and agricultural production and an important component of environmental elements, soil is one of the natural resources on which human beings depend, absorbing about 90% of the pollutants in the environment. With the development of the global industrialization process, environmental pollution accidents and human health damage incidents also occur from time to time, and the volatiles (VOCs) and semi-volatiles (SVOCs) emitted by chemical companies (especially the petroleum industry) are particularly serious. Currently, VOCs have become one of the most prevalent and prominent pollutants in industrial site soils. In particular, the occurrence of sudden enviro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/00B09C1/06B01D53/00B01D46/12B01D53/04
CPCB01D46/12B01D53/002B01D53/04B09C1/005B09C1/06B01D2253/102Y02A50/20
Inventor 何云峰洪俊成胡雅君谷超赵虎彪陈倩李昌鑫叶坚锴
Owner ZHEJIANG UNIV
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