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BASIC RESEARCH JOURNALS OF AGRICULTURAL SCIENCE AND REVIEW ISSN 2315-6880
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Basic Research Journal of Agricultural Science and Review ISSN 2315-6880 Vol. 4(4), pp. 119-126 April 2015 Copyright© 2015 Basic Research Journals

International Scientific Indexing (Impact Factor (0.401))

 

 

Full Length Research Paper
 

Experimental study for heavy metals mitigation in polluted soil

 

Lubna A. Ibrahim

 

Researcher, Central Laboratory for Environmental Quality Monitoring (CLEQM), National Water Research Center (NWRC), Cairo, Egypt.

 

Author’s email: lubna736@hotmail.com

 

Received 17 March, 2015; Accepted 30 March, 2015

 

Abstract

 

This work describes the removals of heavy metals from contaminated sandy loam soil using various extractants. The following extracting solutions were investigated for the removal of heavy metals from the soils using de-ionized water and organic acids (citric, gallic, DL - malic, oxalic, succinic and tartaric acids) suspended in calcium chloride. Overall, this study showed that complete removal of Cd2+, Cu2+, Ni2+, Mn2+, Pb2+ and Zn2+ from sandy loam soil is difficult to be achieved using the soil washing process, and also the use of one extractant may not be effective in removing all metals. A sequential extraction using different extractants may be needed for the removal of multiple metal contaminants from sandy loam soil.

 

Keywords: Soil washing; Citric; Gallic; DL - malic; Oxalic; Succinic; Tartaric.

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