Amrate S, Akretche D E
Laboratory of Hydrometallurgy and Molecular Inorganic Chemistry, Faculty of Chemistry, University of Science and Technology Houari Boumediene (USTHB), BP 32 El-Alia, 16111 Bab-Ezzouar, Algiers, Algeria.
Chemosphere. 2005 Sep;60(10):1376-83. doi: 10.1016/j.chemosphere.2005.02.021. Epub 2005 Apr 7.
Electrokinetic extraction has been tested for lead removal from Algerian contaminated soils. For this purpose, a chelating reagent (EDTA, 0.1M) has been injected into the catholyte. This procedure is expected to enhance the process by desorption of the contaminant and formation of new mobile species negatively charged. A mathematical model based on Nernst-Planck theory has also been developed to predict the evolution of lead distribution across the soil as a function of time. The results of several experiments carried out on various duration (10, 20 and 40 days) have shown the importance on treatment efficiency of pollution age and contaminant speciation as determined by sequential chemical extraction.
电动修复技术已被用于测试从阿尔及利亚受污染土壤中去除铅的效果。为此，一种螯合剂（0.1M的乙二胺四乙酸，即EDTA）已被注入到阴极电解液中。预计该程序通过污染物的解吸和形成带负电荷的新移动物种来增强该过程。还开发了一个基于能斯特 - 普朗克理论的数学模型，以预测土壤中铅分布随时间的变化情况。在不同持续时间（10天、20天和40天）进行的多项实验结果表明，污染时间和通过连续化学萃取确定的污染物形态对处理效率具有重要影响。
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