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-Abstract
This study investigated the effect of rock phosphate (RP). polyvinyl acetate
butyl acrylate emulsion 50% active material w/w (PVAc) and Humic acid (HA) as
natural and synthetic materials applied in remediation. and time of soil incubation on
rates of lead (Pb) desorption from three Egyptian soils. alluvial clay soil (Typ < /em>ic
torrens), calcareous soil (Typ < /em>ic calcids) and Sandy soil (Typ < /em>ic psamments), using
electrical stirred flow technique (ESFU). Lead fractionations in the studied soils were
also investigated after 2 and 16 weeks.
The obtained results showed that in all soil treatments, the applied materials
were significantly reduced the extractable fraction of Pb as in following order: HA>
RP> PVAc. In addition to that. the percentages of Pb extracted from the studied soils
by (NH4HC03) DTPA generally decreased wilh increasing time of soil incubation in
both amended and non-amended soil samples. Data of Pb distribution in different
fractions showed that reducing of Pb extracted from different soils may be attributed to
precipitation! adsorption of Pb. rendering Pb less available. The drtferent mechanisms
of remediation effects of the used matertals from kinetic study and Pb distribution in
different soils were discussed.
DOI
10.21608/jssae.2005.235814
Keywords
chemical remediation. Pb, kinetic models, Pb fractionation
Authors
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-Affiliation
Solis and Water Use Dept. and Plant nutrition Dept., National Research Centre, Dokkl, Cairo, Egypt
Email
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-MiddleName
-Affiliation
Solis and Water Use Dept. and Plant nutrition Dept., National Research Centre, Dokkl, Cairo, Egypt
Email
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-Link
https://jssae.journals.ekb.eg/article_235814.html
Detail API
https://jssae.journals.ekb.eg/service?article_code=235814
Publication Title
Journal of Soil Sciences and Agricultural Engineering
Publication Link
https://jssae.journals.ekb.eg/
MainTitle
EVALUATION OF CHEMICAL REMEDIATION TECHNIQUES OF P8-CONTAMINATED SOILS USING KINETIC APPROACH