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Paper Information

Journal:   IRANIAN JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE AND ENGINEERING (IJEHSE)   SUMMER 2007 , Volume 4 , Number 3; Page(s) 169 To 172.
 
Paper: 

INFLUENCES OF SOIL PROPERTIES ON CHROMIUM (III) SORPTION

 
 
Author(s):  SALMASI R.*, SALMASI F.
 
* AGRICULTURAL AND NATURAL RESOURCES OF EAST AZARBAYJAN, , TABRIZ, IRAN
 
Abstract: 

Soil adsorbing properties reduce sorption ability of the metal, which in turn may influence decision for remediation at contaminated sites. The objective of this study is presentation of a model based on soil properties to estimate the sorption of Cr(III) in chromium contaminated soils. Twenty uncontaminated soil samples, with properties similar to the contaminated soils were selected from around of city of Tabriz and treated with Cr as CrCl3. A multiple regression analysis with statgraph software was used to drive an expression that related Cr sorption to common soil properties. The results showed that four soil properties were important in determining the amount of Cr adsorbed by the soils including pH, cation exchange capacity, total inorganic carbon and clay content with nearly 80% variability in Cr sorption and a reasonable level of confidence by this model. The obtained model suggested that Cr(III) sorption was enhanced by higher soil pH, more total inorganic carbon, more clay, and higher cation exchange capacity.

 
Keyword(s): CHROMIUM, SOIL PROPERTIES, SORPTION MODEL, CONTAMINATED SOIL
 
References: 
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