Merle, Tony and Pic, Jean-Stéphane and Manero, Marie-Hélène and Debellefontaine, Hubert Comparison of activated carbon and hydrophobic zeolite efficiencies in 2,4-dichlorophenol advanced ozonation. (2008) In: IOA International Conference, 15-16 May 2008, Brussels, Belgium .
(Document in English)
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This study aims at comparing the removal of 2,4-dichlorophenol by three methods; adsorption using hydrophobic zeolite (faujasite) or activated carbon (S-23 and L-27), conventional ozonation and hybrid adsorption/ozonation treatment. On the one hand, the three materials correctly adsorb 2,4-DCP; however the adsorption kinetics using zeolite is very low. On the other hand, ozonation totally removes 2,4-DCP after 1 h experiment and the simultaneous combination of adsorbent and ozone does not change the 2,4-DCP degradation part. But, though ozonation and hybrid process appear to be equivalent for 2,4-DCP removal, activated carbons are able to decompose ozone and to improve COD removal, whereas the zeolite does not show this catalytic effect. Similar results were also observed in a former study with nitrobenzene. Adsorbent degradation is evaluated by BET and DTG analysis, which evidence that Faujasite and S-23 activated carbon are resistant to ozone exposure whereas the pore volume and the surface area of L-27 activated carbon decrease during ozonation.
|Item Type:||Conference or Workshop Item (Paper)|
|Audience (conference):||International conference proceedings|
|Institution:||Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)|
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Laboratoire d'Ingénierie des Systèmes Biologiques et des Procédés - LISBP (Toulouse, France)
Laboratoire de Génie Chimique - LGC (Toulouse, France) - Réaction, mélange & séparation (RMS)
|Deposited By:||Hélène Dubernard|
|Deposited On:||14 Nov 2008 13:56|
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