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33 3 ( ) Vol.33 No.3
2007 6 Journal of Hunan Agricultural University (Natural Sciences) Jun 2007
1007-1032(2007)03-0348-05
(1. a. b. 410128 2.
410004)
EDTA
X53 A
Application of surfactants to contaminated soil remediation
ZHANG Yong1aLIAO Bo-han2*ZENG Min1aLEI Ming1b
(1.a.College of Bioscience and Technology b.College of Resources and EnvironmentHNAUChangsha 410128
China 2.International College Central South University of Forestry and Technology Changsha 410004 China)
Abstract Extraction process with or without additives are employed to removal contaminants in soil. Additive which
include surfactantsorganic and inorganic acidscomplexing agents such as EDTAand so onis one of limited factors
in flushing remediation technologyIt has been demonstrated high contaminants removal rates are possible by using
surfactantsThe addition of the surfactants can accelerate remediation workThis paper provides an overview of the
function of surfactants in soil remediationFunction of surfactants for remediation of NAPLs include enhancing the
solubility of the NAPLsincreasing NAPLs adsorption on soil and improving bioavailability of the NAPLswhile ion
exchange and complexing are function of surfactants for remediation of soils contaminated by heavy metals
Key words surfactants soil remediation organic contaminants heavy metals
(surfac
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