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BTX abatement using Chilean natural zeolite: the role of Brønsted acid sites

Alejandro, Serguei and Valdés, Héctor and Manero, Marie-Hélène and Zaror, Claudio A. BTX abatement using Chilean natural zeolite: the role of Brønsted acid sites. (2012) Water Science and Technology, 66 (8). 1759-1765. ISSN 0273-1223

(Document in English)

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Official URL: http://dx.doi.org/10.2166/wst.2012.390


In wastewater treatment facilities, air quality is not only affected by conventional unpleasant odour compounds; toxic volatile organic compounds (VOCs) are also found. In this study, the adsorptive capacity of Chilean natural zeolite toward VOC removal was evaluated. Moreover, the influence of zeolite chemical surface properties on VOC elimination was also investigated. Three modified zeolite samples were prepared from a natural Chilean zeolite (53% clinoptilolite, 40% mordenite and 7% quartz). Natural and modified zeolite samples were characterised by nitrogen adsorption at 77 K, elemental analyses and X-ray fluorescence (XRF). Chemical modifications of natural zeolite showed the important role of Brønsted acid sites on the abatement of VOCs. The presence of humidity has a negative effect on zeolite adsorption capacity. Natural zeolites could be an interesting option for benzene, toluene and xylene vapour emission abatement.

Item Type:Article
Additional Information:Thanks to IWA Publishing. ©IWA Publishing 2012. The definitive peer-reviewed and edited version of this article is published in Water Science and Technology, volume 66, issue 8, pp. 1759-1765, 2012, DOI:10.2166/wst.2012.390 and is available at www.iwapublishing.com
HAL Id:hal-00926353
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Other partners > Universidad de Concepción - UDEC (CHILE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Universidad Católica de la Santísima Concepción - UCSC (CHILE)
Laboratory name:
FONDECYT (Grant No. 1090182) - BASAL PFB-27
Deposited On:14 Nov 2013 15:45

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