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Adsorption of Nitrobenzene from Water onto High Silica Zeolites and Regeneration by Ozone

Reungoat, Julien and Pic, Jean-Stéphane and Manero, Marie-Hélène and Debellefontaine, Hubert Adsorption of Nitrobenzene from Water onto High Silica Zeolites and Regeneration by Ozone. (2007) Separation Science and Technology, vol. 42 (n° 7). 1447 -1463. ISSN 0149-6395

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Official URL: http://dx.doi.org/10.1080/01496390701289948

Abstract

This work investigates the removal of nitrobenzene (NB), a model pollutant from water, by combining adsorption onto zeolites and regeneration with ozone. The adsorption equilibrium isotherms of NB onto zeolites enabled the best adsorbent to be selected and zeolites with a high Si/Al ratio were the most efficient. The adsorption capacity depended on the Si/Al ratio and on the pore size. In a sequential process coupling adsorption and oxidation by ozone, NB was completely removed from water and the initial adsorption capacity of the zeolite was totally restored. Although no catalytic effect was noticed, the adsorption produced locally high concentrations, thus enhancing the oxidation rate for NB.

Item Type:Article
Additional Information:Thanks to Taylor and Francis editor. The definitive version is available at http://www.informaworld.com The original PDF of the article can be found at Separation Science and Technology website :http://www.informaworld.com/smpp/title~content=t713708471~db=all
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA
French research institutions > Centre National de la Recherche Scientifique - CNRS
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Deposited By:Hélène Dubernard

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