CADMIUM ADSORPTION BY SOILS

Abstract

Summary The Langmuir adsorption equation was found to describe Cd adsorption from dilute solutions at 5°C and 25°C for ten soils from Tuscany. The calculated Langmuir adsorption maxima ( Q ) and bonding energy coefficients ( K ) were well correlated with CEC and organic matter content. On the basis of the temperature effect on Q and K , the mechanism of Cd adsorption is discussed.