Soil Science Society of America Journal · 1978 · 17 citations · 0 references
AgricultureEarth SciencesSoil SciencesSoil ChemistrySoil Organic MatterSoil ScienceCation Exchange CapacityChelation In SoilsHeavy Metal RemediationNutrient Retention In SoilsSoil Chemical PropertiesTrace Element ChemistryRemoval Of CadmiumSoil Metal RetentionSoil Organic Matter Loss
Abstract Cadmium was selectively adsorbed over Ca in Cecil, Winsum, and Yolo soils with up to 1.7% of the total cation exchange capacity occupied by Cd. Selectivity was greatest in Yolo and least in Cecil. Effects of undissociated Cd in solution were minor. Separation factors ( K s ) decreased with increasing exchangeable Cd. Reexamination of Cd‐Na exchange revealed that anomalous earlier results were due to the dispersion of organic matter during treatment with Na 2 CO 3 in the preparation of Na‐saturated soils. Na‐Cd exchange was normal where organic matter loss was prevented.