Paper Title:
Effects of EDTA and Organic Acids on Cd Desorption from Zhangshi Irrigation Area Soil
  Abstract

The effects of the added EDTA and organic acids (oxalic acid, tartaric acid and acetic acid) on Cd desorption of Zhangshi Irrigation Area (ZIR)contaminated soil of Shenyang city was investigated by batch balance experiments, in which the concentrations of acids, pH and temperature were examined. The results showed that EDTA, oxalic acid, tartaric acid and acetic acid modified the desorption behaviors of Cd. And the desorption level was EDTA>tartaric acid >oxalic acid >acetic acid. Also, the desorption amount of Cd increased with the concentration ranges from 5 to 40mmol/L; the desorbed amount obviously reduced with elevating pH when the pH was below 6; the adsorption was facilitated and the desorption was weakened when the pH was above 6. In addition, the Cd desorption amount raised with the temperature increasing.

  Info
Periodical
Advanced Materials Research (Volumes 356-360)
Chapter
Chapter 7: Pollution Control Project (Air, Water, Solid)
Edited by
Hexing Li, Qunjie Xu and Daquan Zhang
Pages
1566-1569
DOI
10.4028/www.scientific.net/AMR.356-360.1566
Citation
H. Zhou, W. Yang, M. Liu, S. L. Li, Q. Q. Li, "Effects of EDTA and Organic Acids on Cd Desorption from Zhangshi Irrigation Area Soil", Advanced Materials Research, Vols. 356-360, pp. 1566-1569, 2012
Online since
October 2011
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Price
$35.00
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