Actinomadura algeriensis sp. nov., an actinobacterium isolated from Saharan soil

Abdelhadi Lahoum (1) , Noureddine Bouras (1, 2) , Florence Mathieu (3) , Peter Schumann (4) , Cathrin Spröer (4) , Hans-Peter Klenk (5) , Nasserdine Sabaou (1)

1 ENS Kouba-Alger - École normale supérieure - Kouba-Alger
2 Université de Ghardaïa
3 LGC - Laboratoire de Génie Chimique
4 Leibniz-Institut Deutsche Sammlung von Mikroorganismen und Zelllkulturen GmBH - DSMZ (GERMANY)
5 Newcastle University [Newcastle]

In this study, a hydrophobic synthetic zeolite, namely ZSM-5 is chosen as an adsorbent/catalyst for toluene removal. Experimental results showed that toluene adsorption onto ZSM-5 was favourable, following a Langmuir adsorption isotherm model. ZSM-5 zeolite was regenerated using gaseous ozone at low temperature. Adsorbed toluene was oxidised, releasing mainly CO2 and H2O. Traces of oxidation by-products such as acetic acid and acetaldehyde were formed and remained adsorbed after the oxidativate regeneration with ozone. After four successive cycles of adsorption/ozonation, the adsorption efficiency was not affected (92%–99%). These results showed that volatile organic compound (VOC) removal by adsorption onto ZSM-5 zeolite followed by ozone regeneration could be used as a promising hybrid process for the control of VOC emissions in terms of efficiency.

Mots clés: Adsorption; Ozone; Toluene; VOCs; Zeolite

Domaines: Génie chimique; Génie des procédés

Abdelhadi Lahoum, Noureddine Bouras, Florence Mathieu, Peter Schumann, Cathrin Spröer, et al.. Actinomadura algeriensis sp. nov., an actinobacterium isolated from Saharan soil. Antonie van Leeuwenhoek, 2016, 109 (1), pp.159-165. ⟨10.1007/s10482-015-0617-x⟩. ⟨hal-02134866⟩