Adsorption of Nitrobenzene from Water onto High Silica Zeolites and Regeneration by Ozone - Archive ouverte HAL Access content directly
Journal Articles Separation Science and Technology Year : 2007

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

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.
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Dates and versions

hal-03593521 , version 1 (02-03-2022)

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Julien Reungoat, Jean-Stéphane Pic, Marie-Hélène Manero, Hubert Debellefontaine. Adsorption of Nitrobenzene from Water onto High Silica Zeolites and Regeneration by Ozone. Separation Science and Technology, 2007, 42 (7), pp.1447 -1463. ⟨10.1080/01496390701289948⟩. ⟨hal-03593521⟩
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