Cadmium adsorption by an organic soil: a comparison of some humic - metal complexation models

• Published in: Chemical speciation and bioavailability Vol. 15; no. 4; pp. 93 - 100
• Main Authors: Evans, Les J., Sengdy, Boua, Lumsdon, David G., Stanbury, Devon A.
• Format: Journal Article
• Language: English
• Published: Taylor & Francis 01.01.2003
• Subjects: adsorption; binding sites; cadmium; complexation; ionic strength; moieties; organic; organic soils

The retention of Cd by an organic soil was investigated as a function of pH and ionic strength. The adsorption of Cd at pH values from 2 to 11 at two ionic strengths (0.053 M and 0.017 M LiNO 3 ) were found to be a function of both pH and ionic strength. Four Cd-humic complexation models were evalua...