Removal of ammonium ion from aqueous solution using magnetically modified zeolite

Authors
Nah, I. W.Hwang, K. -Y.Shul, Y. -G.Jeon, C.
Issue Date
2008-06
Publisher
TAYLOR & FRANCIS LTD
Citation
ENVIRONMENTAL TECHNOLOGY, v.29, no.6, pp.633 - 639
Abstract
This paper assesses the potential of magnetically modified zeolite (MM) for ammonia removal from aqueous solution. The effects of relevant parameters such as contact time, pH and initial ammonia concentration were examined. The results show that ammonium ion removal by MMZ occurs rapidly within the first five minutes, pH has an effect on ammonium ion removal efficiency, and the ammonium ion removal capacity of MMZ increases with increase in initial ammonium ion concentration. The Langmuir and Freundlich adsorption isotherms were used to determine the adsorption characteristics. Ammonium-laden MMZ seems to be regenerated completely by sodium chloride solution at pH 11-12.
Keywords
CLINOPTILOLITE; magnetically modified zeolite; adsorption; ammonium ion
ISSN
0959-3330
URI
https://pubs.kist.re.kr/handle/201004/133445
DOI
10.1080/09593330801984514
Appears in Collections:
KIST Article > 2008
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