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  • Title: A comparative study of the adsorption and desorption of o-xylene onto bentonite clay and alumina.
    Author: Zaitan H, Bianchi D, Achak O, Chafik T.
    Journal: J Hazard Mater; 2008 May 01; 153(1-2):852-9. PubMed ID: 17977653.
    Abstract:
    In this paper, adsorptive performance of natural clay of bentonite type has been investigated as a potential VOC adsorbent on the basis its promising physical-chemical and morphological properties which were compared to commercial gamma-Al(2)O(3) solid. The vapour-solid adsorption isotherms of xylene were measured at different temperatures ranging from 300 to 373 K using dynamical method and the obtained data confronted to classical models such as Langmuir and Freundlich. On the other hand, the solids physico-chemical characteristics and adsorptive performances were correlated to some cost aspects because of their importance for design and engineering of adsorption plant. The results shows the interest of a local clay natural of bentonite type for treatment of VOCs emitted in working places regarding its performances and lower cost.
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