Removal of ammonium from aqueous solution by ion exchange on natural and modified chabazite
The ammonium exchange capacity of a natural chabazite was studied in this work. The XRD analysis of the zeolite sample revealed that the main zeolitic phase was chabazite. The textural properties were determined by the N-BET method and the surface morphology and charge were examined using a scanning...
| Publicado en: | Journal of Environmental Management Vol. 91; no. 12; pp. 2662 - 2669 |
|---|---|
| Autores principales: | , , , , , , |
| Formato: | Artículo |
| Publicado: |
Academic Press Inc.
Dec2010
|
| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=53795895&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 53795895 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 03014797 EMJ jtl: Journal of Environmental Management issn: 03014797 maglogo: N pubinfo: dt: Dec2010 vid: 91 iid: 12 pid: 735 pub: Academic Press Inc. artinfo: ui: 53795895 10.1016/j.jenvman.2010.07.035 ppf: 2662 ppct: 7 formats: tig: atl: Removal of ammonium from aqueous solution by ion exchange on natural and modified chabazite aug: au: Leyva-Ramos, R. Monsivais-Rocha, J.E. Aragon-Piña, A. Berber-Mendoza, M.S. Guerrero-Coronado, R.M. Alonso-Davila, P. Mendoza-Barron, J. affil: Centro de Investigacion y Estudios de Posgrado, Facultad de Ciencias Químicas, Universidad Autonoma de San Luis Potosi, Av. Dr. Manuel Nava #6, San Luis Potosí, SLP 78210, México Instituto de Metalurgia, Universidad Autonoma de San Luis Potosi, San Luis Potosi 78210, Mexico su: Zeolites Ion exchange resins Clinoptilolite Ammonium & the environment Ammonium ions & the environment Ion exchange (Chemistry) Morphology Batch processing Temperature effect pH effect sug: subj: Plastics Material and Resin Manufacturing Resin and synthetic rubber manufacturing Chemical fertilizer (except potash) manufacturing Zeolites Ion exchange resins Clinoptilolite Ammonium & the environment Ammonium ions & the environment Ion exchange (Chemistry) Morphology Batch processing Temperature effect pH effect keyword: Ammonium Chabazite Ion exchange Natural zeolite Ammonium Chabazite Ion exchange Natural zeolite ab: The ammonium exchange capacity of a natural chabazite was studied in this work. The XRD analysis of the zeolite sample revealed that the main zeolitic phase was chabazite. The textural properties were determined by the N-BET method and the surface morphology and charge were examined using a scanning electron microscope and a zetameter, respectively. The ion exchange equilibrium data were obtained in a batch adsorber and the Langmuir isotherm fitted plausibly well the equilibrium data. The effects of the temperature and pH on the ammonium exchange capacity of chabazite were investigated and the capacity increased augmenting the temperature from 15 to 35 °C and pH from 3 to 6. The natural chabazite was modified by a hydrothermal treatment using NaCl and KCl solutions and it was found that the modification influenced the ammonium exchange capacity of the chabazite. The ammonium capacity of natural chabazite was compared with that of a natural clinoptilolite and it was concluded that the chabazite capacity was 1.43 times higher than that of clinoptilolite. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
|---|