An experiment in the electrokinetic removal of copper from soil contaminated by the brass industry

被引：23
|
作者：
Ravera, Mauro
Ciccarelli, Cesare
Gastaldi, Daniela
Rinaudo, Caterina
Castelli, Claudia
Osella, Domenico
机构：
[1] Univ Piemonte Orientale Amedeo Avogadro, Dipartimento Sci Ambiente & Viat, I-15100 Alessandria, Italy
[2] Parco Sci Tecnol & Telcomunicaz Valle Scrivia SpA, I-15050 Rivalta Scrivia, AL, Italy
来源：
CHEMOSPHERE | 2006年 / 63卷 / 06期
关键词：
electrokinetic remediation; soil; clay; citrate mobilizer; copper electromigration;
D O I：
10.1016/j.chemosphere.2005.08.068
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The feasibility of electrokinetic remediation of copper-contaminated soil was evaluated following eight days of electroreclamation. The results indicate that electrokinetic reclamation of Cu is totally ineffective in soil composed primarily of clay minerals and organic matter. The strong absorption of copper by this kind of soil, in our view mainly a result of retention by the clay component, makes it resistant to mobilization by the electrogenerated acidic front as well as by citrates (the competitors of natural chelating agents, i.e., humates). Such conditions, while adverse for the electroremediation process, may cause this kind of soil to act as a natural barrier to the leaching of copper ions. (c) 2005. Elsevier Ltd. All rights reserved.
引用
收藏
页码：950 / 955
页数：6
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