A model for evaluating the feasibility of an extraction procedure for heavy metal removal from contaminated soils

被引：25

作者：

Masscheleyn, PH ^{[1
]}

Tack, FM ^{[1
]}

Verloo, MG ^{[1
]}

机构：

[1] State Univ Ghent, Lab Analyt Chem & Appl Ecochem, B-9000 Ghent, Belgium

来源：

WATER AIR AND SOIL POLLUTION | 1999年 / 113卷 / 1-4期

关键词：

extraction; heavy metals; soil remediation;

D O I：

10.1023/A:1005077724882

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A model was developed that allowed for the evaluation of a soil metal cleaning technique in a rapid and cost effective manner. Metal flow (Pb, Cu, Zn, and Cd) during a counter-current soil-acid extraction procedure, consisting of a decarbonation, solubilisation, and washing step, was determined. Required input data are total soil metal content and metal equilibrium distribution coefficients, derived from batch equilibration experiments. The model was calibrated and validated against experimentally obtained results. Model predictions adequately described metal behaviour and removal in each of the extraction steps. Based on the results, optimum operating conditions for the steps involved in the extraction procedure were determined and the feasibility of the counter-current extraction procedure for heavy metal removal from a contaminated soil evaluated.

引用

页码：63 / 76

页数：14

共 13 条

[1] ADSORPTION AND SURFACE PRECIPITATION OF METALS ON AMORPHOUS IRON OXYHYDROXIDE [J].

BENJAMIN, MM .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1983, 17 (11) :686-692

[2]

Cottenie A, 1982, Chemical analysis of plants and soils. Laboratory of Analytical and Agrochemistry, P63

[3] CADMIUM ADSORPTION ON IRON-OXIDES IN THE PRESENCE OF ALKALINE-EARTH ELEMENTS [J].

COWAN, CE ;

ZACHARA, JM ;

RESCH, CT .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1991, 25 (03) :437-446

[4] RESULTS OF TREATMENT EVALUATIONS OF A CONTAMINATED SYNTHETIC SOIL [J].

ESPOSITO, P ;

HESSLING, J ;

LOCKE, BB ;

TAYLOR, M ;

SZABO, M ;

THURNAU, R ;

ROGERS, C ;

TRAVER, R ;

BARTH, E .

JAPCA-THE JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION, 1989, 39 (03) :294-304

[5]

KIEKENS L, 1980, THESIS STATE U GHENT, P166

[6] CONCENTRATION AND PH-DEPENDENCE OF CALCIUM AND ZINC ADSORPTION BY IRON HYDROUS OXIDE GEL [J].

KINNIBURGH, DG ;

JACKSON, ML .

SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 1982, 46 (01) :56-61

[7] Feasibility of a counter-current extraction procedure for the removal of heavy metals from contaminated soils [J].

Masscheleyn, PH ;

Tack, FM ;

Verloo, MG .

WATER AIR AND SOIL POLLUTION, 1996, 89 (3-4) :317-335

[8] THE EFFECT OF PH ON ZINC ADSORPTION EQUILIBRIA AND EXCHANGEABLE ZINC POOLS IN SOILS [J].

SANDERS, JR ;

ELKHERBAWY, MI .

ENVIRONMENTAL POLLUTION, 1987, 44 (03) :165-176

[9] DESORPTION AND EXTRACTION OF SELECTED HEAVY-METALS FROM SOILS [J].

SHEPPARD, MI ;

THIBAULT, DH .

SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 1992, 56 (02) :415-423

[10]

Statistical Analysis Systems, 1985, SAS US GUID

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