Applied Chemistry, Vol.2, No.1, 298-301, May, 1998
이온교환을 이용한 질산성 질소제거의 속도론적 고찰
Ion Exchange Kinetics of Nitrate Removal
A kinetic study for anion exchange was performed using batch and continuous column reactors. The obtained results from the batch reactor were applied to the Langmuir and Freundlich models. The constants for Langmuir model were qmax=29.82 and b=0.202, and for Freundlich model were K=5.509 and n= 1.772. Langmuir model showed better fit than Frendlich model for the experimental results. Ion exchange reaction rate was also calculated and the approximate first-order reaction rate constant k1 was 0.16 L/mg·hr. Kinetic approach from the packed bed also showed the reaction rate constant ranged from 0.07 to 0.17L/mg·hr and maximum exchange quantity from 27.75 to 3.81 mg/g. The results from the continuous column well agreed with that from the batch reactor,