The use of chelating agents in the remediation of metal-contaminated soils: A review

被引：412
作者：
Lestan, Domen [1 ]
Luo, Chun-ling [2 ]
Li, Xiang-dong [2 ]
机构：
[1] Univ Ljubljana, Biotech Fac, Ctr Soil & Environm Sci, Agron Dep, Ljubljana 1000, Slovenia
[2] Hong Kong Polytech Univ, Dept Civil & Struct Engn, Kowloon, Hong Kong, Peoples R China
来源：
ENVIRONMENTAL POLLUTION | 2008年 / 153卷 / 01期
关键词：
metal; chelant; phytoextraction; soil washing; metal leaching;
D O I：
10.1016/j.envpol.2007.11.015
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
This paper reviews current remediation technologies that use chelating agents for the mobilization and removal of potentially toxic metals from contaminated soils. These processes can be done in situ as enhanced phytoextraction, chelant enhanced electrokinetic extraction and soil flushing, or ex situ as the extraction of soil slurry and soil heap/column leaching. Current proposals on how to treat and recycle waste washing solutions after soil is washed are discussed. The major controlling factors in phytoextraction and possible strategies for reducing the leaching of metals associated with the application of chelants are also reviewed. Finally, the possible impact of abiotic and biotic soil factors on the toxicity of metals left after the washing of soil and enhanced phytoextraction are briefly addressed. (C) 2007 Elsevier Ltd. All rights reserved.
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页码：3 / 13
页数：11
相关论文
共 103 条
[1]   PRINCIPLES OF ELECTROKINETIC REMEDIATION [J].
ACAR, YB ;
ALSHAWABKEH, AN .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1993, 27 (13) :2638-+
[2]  
Ager R, 2003, J PULP PAP SCI, V29, P303
[3]   REMEDIATION OF METAL-CONTAMINATED SOIL BY EDTA INCORPORATING ELECTROCHEMICAL RECOVERY OF METAL AND EDTA [J].
ALLEN, HE ;
CHEN, PH .
ENVIRONMENTAL PROGRESS, 1993, 12 (04) :284-293
[4]  
Bai Z, 1999, J NAT RES, V19, P24
[5]   Fractionation of lead in soils and its influence on the extractive cleaning with EDTA. [J].
Barona, A ;
Romero, F .
ENVIRONMENTAL TECHNOLOGY, 1996, 17 (01) :63-70
[6]   FREE METAL ACTIVITY AND TOTAL METAL CONCENTRATIONS AS INDEXES OF MICRONUTRIENT AVAILABILITY TO BARLEY [HORDEUM-VULGARE (L) KLAGES] [J].
BELL, PF ;
CHANEY, RL ;
ANGLE, JS .
PLANT AND SOIL, 1991, 130 (1-2) :51-62
[7]   Enhanced accumulation of Pb in Indian mustard by soil-applied chelating agents [J].
Blaylock, MJ ;
Salt, DE ;
Dushenkov, S ;
Zakharova, O ;
Gussman, C ;
Kapulnik, Y ;
Ensley, BD ;
Raskin, I .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1997, 31 (03) :860-865
[8]  
Bohn H., 1985, SOIL CHEM
[9]   EDTA TOXICITY AND BACKGROUND CONCENTRATIONS OF COPPER AND ZINC IN HYALELLA-AZTECA [J].
BORGMANN, U ;
NORWOOD, WP .
CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES, 1995, 52 (04) :875-881
[10]   INSITU VITRIFICATION OF SOILS CONTAINING VARIOUS METALS [J].
BUELT, JL ;
FARNSWORTH, RK .
NUCLEAR TECHNOLOGY, 1991, 96 (02) :178-184
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