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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/9995

Title: Mutual effect of EDTA and Some Plant Sppecies on Phytoremediation of Arsenic and cadmium Contamintaed Soil.
Authors: AL-Oud, S. S
Issue Date: 2007
Abstract: Phosphate may effectively compete with arsenic (especially arsenate) for surface binding sites on solids. Thus, there may be concerns with regard to arsenic desorption caused by the addition of phosphates for in situ immobilization of metals. However, most As contaminated soil have also Pb and usually phosphate precipitates Pb in the form, such as chloropyromorphite [Pb5(PO4)3Cl], which are extremely stable. The pH where this Pb phosphate is stable ranges from below 2 to above 10 (Scheckeland Ryan, 2002).Other studies have examined the reduction of bioavailable lead by phosphate amendments as measured by a physiologically based extraction procedure. In this study will examine EDTA in mobilization of Pb as will as P and Oxalate in enhancing As mobility in Pb-As contained soil . Also, to develop a simple scheme that can be used to extract arsenic. Therefore, we selected extraction media, i.e. combination EDTA with the phosphate saltand EDTA with Oxalate acid salt. to determine whether or not they improved arsenic recoveries from contaminated soil.
URI: http://hdl.handle.net/123456789/9995
Appears in Collections:College of Foods And Agricultural Science

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