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Title:
MIXED ELUANT FOR SYNCHRONOUSLY REMOVING POLYCHLORINATED BIPHENYL AND HEAVY METALS IN SOIL, AND PREPARATION AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2017/012274
Kind Code:
A1
Abstract:
The present invention relates to the technical field of polluted soil restoration. Disclosed are a mixed eluant for synchronously removing polychlorinated biphenyl and heavy metals in soil, and the preparation and a use thereof. The mixed eluant is prepared by dissolving active components comprising saponin and Tween 80 in water. The mixed eluant can be used for restoring soil compositely-polluted by polychlorinated biphenyl and heavy metals. The use of the mixed eluant comprises the steps of: taking soil compositely-polluted by polychlorinated biphenyl and heavy metals, and performing elution by adding the mixed eluant of the present invention, so as to implement restoration of the soil compositely-polluted by polychlorinated biphenyl and heavy metals. The mixed eluant of the present invention has wide raw material sources, has a low price, is environmentally-friendly, has a good elution effect and a high elution rate, and has an elution rate of higher than 80% for pollutants in the compositely-polluted soil.

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Inventors:
LU GUINING (CN)
LIAO KAN (CN)
SUN GUOSHENG (CN)
DANG ZHI (CN)
GUO CHULING (CN)
YI XIAOYUN (CN)
WANG JIXIN (CN)
LIN QING (CN)
CHEN CHENYONG (CN)
Application Number:
PCT/CN2015/099287
Publication Date:
January 26, 2017
Filing Date:
December 28, 2015
Export Citation:
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Assignee:
UNIV SOUTH CHINA TECH (CN)
GUANGDONG YUE GANG WATER SUPPLY CO LTD (CN)
International Classes:
C09K17/14
Foreign References:
CN105018101A2015-11-04
CN103725437A2014-04-16
CN104289511A2015-01-21
CN103706624A2014-04-09
Other References:
ZHANG, FANGLI ET AL.: "Study on the Desorption of Polychlorinated Biphenyls (PCBs) in Soil by Different Eluents", RESEARCH OF ENVIRONMENTAL SCIENCES, vol. 27, no. 3, 31 March 2014 (2014-03-31), ISSN: 1001-6929
Attorney, Agent or Firm:
GUANGZHOU HUAXUE INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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