Enhanced electrokinetic remediation of Cd and Pb spiked soil coupled with cation exchange membrane
Xuejun Chen A , Zhemin Shen A , Yangming Lei A , Bingxin Ju A and Wenhua Wang A BA School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800# Dongchuan Road, Shanghai 200240, P. R. China.
B Corresponding author. Email: whwang@sjtu.edu.cn
Australian Journal of Soil Research 44(5) 523-529 https://doi.org/10.1071/SR05117
Submitted: 2 August 2005 Accepted: 1 May 2006 Published: 4 August 2006
Abstract
Electrokinetic (EK) remediation is one of the popular and promising in situ remediation techniques for metal-contaminated soils, but the remediation effect is strongly affected by soil type and chemical species of contaminants; moreover, pH is very difficult to control. This paper investigates the species of cadmium (Cd) and lead (Pb) in simulating contaminated soil before and after EK remediation, and the soil is a typical silt loam soil from Shanghai. Heavy metal speciation in the soil sample was analysed through a sequential extraction procedure. Cation-exchange membrane (CEM) and conductive solution were applied to improve the remediation efficiency. Both methods help to keep acid conditions and CEM can prevent anions in the cathodic compartment from penetrating into the soil sample system. The pH of the soil specimen was acidic during the test, and Cd was quickly removed from the soil while Pb was removed more slowly. The average removal efficiencies of Cd and Pb were 68.7 and 38.7%, respectively, after 60 h of remediation.
Additional keywords: cadmium, lead, electrokinetic remediation, cation-exchange membrane, speciation.
Acknowledgments
The authors acknowledge the financial support of the Chinese National Science Foundation (No. 20377028 & 28467001) for this study, Beijing, P. R. China. The authors are also grateful to Jenny Fegent and other two anonymous reviewers for their valuable comments and suggestions.
Authors: Wenhua Wang is Professor at the School of Environmental Science and Engineering, Shanghai Jiao Tong University, P.R. China. Zhemin Shen is an Associate Professor of the same organisation. Xuejun Chen and Yangming Lei are the PhD candidates of the same organisation. Bingxin Ju is a Masters student of the same organisation.
Acar YB, Alshawabkeh AN
(1993) Principles of electrokinetic remediation. Environmental Science & Technology 27, 2638–2647.
| Crossref | GoogleScholarGoogle Scholar |
Altin A, Degirmenci M
(2005) Lead (II) removal from natural soils by enhanced electrokinetic remediation. The Science of the Total Environment 337, 1–10.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
Amrate S,
Akretche DE,
Innocent C, Seta P
(2005) Removal of Pb from a calcareous soil during EDTA-enhanced electrokinetic extraction. The Science of the Total Environment 349, 56–66.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
Chen YX,
Lin Q,
Luo YM,
He YF,
Zhen SJ,
Yu YL,
Tian GM, Wong MH
(2003) The role of citric acid on the phytoremediation of heavy metal contaminated soil. Chemosphere 50, 807–811.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
Cox CD,
Shoesmith MA, Ghosh MM
(1996) Electrokinetic remediation of mercury contaminated soils using idoine/idoide lixiviant. Environmental Science & Technology 30, 1933–1938.
| Crossref | GoogleScholarGoogle Scholar |
Desharnais BM, Lewis BAG
(2002) Electrochemical water splitting at bipolar interface of ion exchange membranes and soils. Soil Science Society of America Journal 66, 1518–1525.
De Vries W,
Curlík J,
Murányi A,
Alloway B, Groenenberg BJ
(2005) Assessment of relationships between total and reactive concentrations of cadmium, copper, lead and zinc in Hungarian and Slovakian soils. Ekologia Bratislava 24, 152–169.
Giannis A, Gidarakos E
(2005) Washing enhanced electrokinetic remediation for removal cadmium from real contaminated soil. Journal of Hazardous Materials 123, 165–175.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
Jakobsen MR,
Fritt-Rasmussen J,
Nielsen S, Ottosen LM
(2004) Electrodialytic removal of cadmium from wastewater sludge. Journal of Hazardous Materials 106, 127–132.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
Kim SO,
Kim JJ,
Yun ST, Kim KW
(2003) Numerical and experimental studies on cadmium (II) transport in kaolinite clay under electrical fields. Water, Air, and Soil Pollution 150, 135–162.
| Crossref | GoogleScholarGoogle Scholar |
Kim WS,
Kim SO, Kim KW
(2005) Enhanced electrokinetic extraction of heavy metals from soils assisted by ion exchange membranes. Journal of Hazardous Materials 118, 93–102.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
Lageman R
(1993) Electroreclamation: application in the Netherlands. Environmental Science & Technology 27, 2648–2650.
| Crossref | GoogleScholarGoogle Scholar |
Li Z,
Yu JW, Neretnieks I
(1998) Electroremediation: removal of heavy metals from soils by using cation selective membrane. Environmental Science & Technology 32, 394–397.
| Crossref | GoogleScholarGoogle Scholar |
Ottosen LM,
Hansen HK,
Ribeiro AB, Villumsen A
(2001) Removal of Cu, Pb and Zn in an applied electric field in calcareous and non-calcareous soils. Journal of Hazardous Materials 85, 291–299.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
Probstein RF, Hicks RE
(1993) Removal of contaminants from soils by electric fields. Science 260, 498–503.
Puppala SK,
Alshawabkeh AN,
Acar YB,
Gale RJ, Bricka M
(1997) Enhanced electrokinetic remediation of high sorption capacity soils. Journal of Hazardous Materials 55, 203–220.
| Crossref | GoogleScholarGoogle Scholar |
Reddy KR, Chinthamreddy S
(2004) Enhanced electrokinetic remediation of heavy metals in glacial till soils using different electrolyte solutions. Journal of Environmental Engineering - ASCE 130, 442–455.
| Crossref | GoogleScholarGoogle Scholar |
Sah JG, Chen JY
(1998) Study of the electrokindtic process on Cd and Pb spiked soils. Journal of Hazardous Materials 58, 301–315.
| Crossref | GoogleScholarGoogle Scholar |
Sandroni V,
Smith MM, Donovan A
(2003) Microwave digestion of sediment, soils and urban particulate matter for trace metal analysis. Talanta 60, 715–723.
| Crossref | GoogleScholarGoogle Scholar |
Shrestha R,
Fischer R, Rahner D
(2003) Behavior of cadmium, lead and zinc at the sediment–water interface by electrochemically initiated processes. Colloids and Surfaces A - Physicochemical Engineering Aspects 222, 261–271.
| Crossref | GoogleScholarGoogle Scholar |
Suer P,
Gitye K, Allard B
(2003) Speciation and transport of heavy metals and macroelements during electroremediation. Environmental Science & Technology 37, 177–181.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
Tessier A,
Campbell PGC, Bisson M
(1979) Sequential extraction procedure for the speciation of particulate trace metals. Analytical Chemistry 51, 844–851.
| Crossref | GoogleScholarGoogle Scholar |
Virkutyte J,
Sillanpaa M, Latostenmaa P
(2002) Electrokinetic soil remediation–critical overview. The Science of the Total Environment 289, 97–121.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
Wang Z,
Fu XQ,
Liu FZ,
Du DD, Zhan XH
(2002) Atomic fluorescent determination of trace lead in soil as its hydride. Argo-Environmental Protection [In Chinese.] 21, 263–265.
Wu C
(2003) Determination of Cd in soils by hydride generation-atomic fluorescence spectrometry. Spectrosccopy and Spectral Analysis [in Chinese.] 23, 990–992.
Yeung AT, Hsu C
(2005) Electrokinetic remediation of cadmium-contaminated clay. Journal of Environmental Engineering-ASCE 131, 298–304.
| Crossref | GoogleScholarGoogle Scholar |
