| Home | E-Submission | Sitemap | Contact Us |  
Environmental Engineering Research 2003;8(2): 98-106. DOI: https://doi.org/10.4491/eer.2003.8.2.098
REMOVAL OF AMMONIUM ION FROM AQUEOUS SOLUTIONS USING A DOMESTIC NATURAL ZEOLITE
Hyun-Suk Lee, and Hwan-Gi Kim
Faculty of Civil and Environmental Engineering, Chonbuk National University
Corresponding Author: Hyun-Suk Lee ,Tel: +82-63-620-6353, Fax: +82-63-620-6386, Email: hyunsukleel7@hanmail.net
Received: November 12, 2002;  Accepted: March 2, 2003.
Share :  
ABSTRACT
A domestic natural zeolite was pretreated with hydrogen chloride, sodium hydroxide, and sodium chloride to improve the adsorption capacities of ammonium ion from an aqueous solutions. The pretreated natural zeolite was characterized by X-ray diffraction (XRD) and BET experiments. From experimental data, it was shown that the pretreatment with sodium chloride provided the highest capacity for the removal of ammonium ion. Adsorption equilibrium data were correlated with Langmuir, Freundlich, and Sips isotherms. Adsorption and desorption dynamics were investigated in a fixed-bed charged with natural zeolite, that had been pretreated with sodium chloride. A simple dynamic model was formulated in order to describe adsorption breakthrough curves of ammonium ion.
Keywords: adsorption isotherm | ammonium ion | domestic natural zeolite | dynamic model | pretreatment
Editorial Office
464 Cheongpa-ro, #726, Jung-gu, Seoul 04510, Republic of Korea
TEL : +82-2-383-9697   FAX : +82-2-383-9654   E-mail : eer@kosenv.or.kr

Copyright© Korean Society of Environmental Engineers. All rights reserved.        Developed in M2community
About |  Browse Articles |  Current Issue |  For Authors and Reviewers