Ammonium removal from aqueous solution by ion-exchange using packed bed natural zeolite
WATER SA, vol.28, no.3, pp.329-335, 2002 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 28 Issue: 3
- Publication Date: 2002
- Doi Number: 10.4314/wsa.v28i3.4903
- Journal Name: WATER SA
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.329-335
- Open Archive Collection: AVESIS Open Access Collection
- Yıldız Technical University Affiliated: Yes
Abstract
Ammonium removal from aqueous solution by a natural ion-exchange resin was investigated by considering the factors affecting the ammonium-exchange capacity including the zeolites' particle size, the loading flow rates and the impact of a number of regenerations upon the ion-exchange capacity. The resin column was exhausted by downflow at 10, 25, 50 and 75 bed volume (BV)/h until effluent ammonium concentration of more than 10 mg/lNH(4)(+) was achieved. The results indicate that conditioning of the zeolite improves the ion-exchange capacity and that the smaller particle size also causes a higher ion-exchange capacity due to greater available surface area. The actual ion-exchange capacity of the conditioned fine (1.00+0.125) and coarse (-2.00+1.00) mm clinoptilolite was found to be 0.57 and 0.38 meq/g zeolite, respectively.