A novel approach to adsorption kinetics calculation

摘要: Abstract A new model for synthetic zeolite adsorption kinetics calculation was developed. Investigations were carried out using dynamic fixed-bed pilot plant on natural groundwater with ammonia concentration of 2.24 mgNH 4 + -N/L. The approach computing the pseudo-equilibrium capacity toward applied and specific rate theoretically defined empirically putted to use. Three-stage kinetic process cognized base experimental data. first stage characterized slow decrease then rise effluent concentrations until 20 h time 200 BV. Subsequently, fast increase across breakthrough point comprised second stage. After 530 BV 50 h overall inlet value observed 96.5 h 1017 BV as third Applied pseudo-first pseudo-second modeling showed that all experiments data can be explained by Q e  = 112.31 mgNH -N/g k 1  = 0.068 h −1 while better fits where obtained values 2 125 mgNH 7.5·10 −4  g mgNH -N  h , respectively. It found investigated non-equilibrium in stages exception final part Pseudo-equilibrium occurred at end 109.60 mgNH -N/g.