Title:
METHOD FOR IN-SITU REMEDIATION OF CONTAMINATED SOIL THROUGH MULTI-TECHNOLOGY COUPLING
Document Type and Number:
WIPO Patent Application WO/2023/123424
Kind Code:
A1
Abstract:
The present invention provides a method for in-situ remediation of contaminated soil through multi-technology coupling. The remediation method comprises the following steps: using an in-situ thermal conduction thermal desorption method to preheat soil in a contaminated site, then performing multi-phase extraction; in soil of the contaminated site, performing a cycle of injection of hot steam, multi-phase extraction, and injection of an oxidizing agent. A system for in-situ remediation of organic contaminated soil based on the method for in-situ remediation of organic contaminated soil comprises a heating well, an injection well, and an extraction well; the heating well is connected to the in-situ heat conduction thermal desorption system and used for preheating the soil in the contaminated site; the injection well is connected to the in-situ injection system and used for injecting hot steam and an oxidation agent; the extraction well is connected to the vacuum extraction system and used for achieving multi-phase extraction of the contaminated site. In the present invention, the pollutant removal rate of the organic contaminated soil is greatly increased by means of a combination of multiple technologies coupled together.
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Inventors:
LI JINGWEN (CN)
SUN YURU (CN)
LYU JING (CN)
GUO NAN (CN)
LIU PENG (CN)
WANG FUWANG (CN)
LIU DONGLI (CN)
ZHI JUQING (CN)
YU XIAOXIN (CN)
SUN YURU (CN)
LYU JING (CN)
GUO NAN (CN)
LIU PENG (CN)
WANG FUWANG (CN)
LIU DONGLI (CN)
ZHI JUQING (CN)
YU XIAOXIN (CN)
Application Number:
PCT/CN2021/143862
Publication Date:
July 06, 2023
Filing Date:
December 31, 2021
Export Citation:
Assignee:
BCEG ENV REMEDIATION CO LTD (CN)
International Classes:
B09C1/06; B09C1/00; B09C1/08
Foreign References:
| CN111069264A | 2020-04-28 | |||
| CN113277609A | 2021-08-20 | |||
| CN111672893A | 2020-09-18 | |||
| CN107350278A | 2017-11-17 | |||
| CN112387771A | 2021-02-23 |
Attorney, Agent or Firm:
SUNSHINE INTELLECTUAL PROPERTY INTERNATIONAL CO., LTD. (CN)
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