Study on sorption kinetics of Cs for estimation of site specific Kd in soil sample collected near waste management facility (WMF) at Rawatbhata

Distribution coefficient (K_d) is useful parameter for migration study of contaminant around nuclear waste management sites and is defined as the ratio of the quantity of the adsorbate adsorbed per unit mass of solid to the amount of the adsorbate remaining in a unit volume of solution at equilibrium. Since the distribution coefficient depends on the soil and groundwater chemistry, generation of site specific K_d assumes importance. In the literature studies reported wide variation of K_d values of Caesium. For realistic planning of mechanical barriers to reduce leach rate, evaluation of site specific experimental K_d value is required