Optimization of the volume fraction of an absorbent phase (silicone oil)and biodegradation kinetics of DMDS in a TPPB. - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Récents Progrès en Génie des Procédés Année : 2011

Optimization of the volume fraction of an absorbent phase (silicone oil)and biodegradation kinetics of DMDS in a TPPB.

Résumé

To improve the removal of hydrophobic Volatile Org. Compds. (VOC), an integrated process coupling an absorption step and a biol. treatment in a Two-Phase Partitioning Bioreactor was considered. A preliminary bibliog. review allowed to select a silicon oil (Polydimethylsiloxane),which appeared efficient for both steps, VOC absorption and biodegrdn., since this oil was biocompatible, non-biodegradable and had a negligible soly. in water. The purpose of this work was the implementation of this org. phase in the bioreactor. BOD5 measurements showed that a ratio ranging between 20 and 30% of silicone oil in water was found to be optimal for the treatment of DMDS, in relation with interfacial area considerations. For a small proportion of oil, the emulsion is homogeneous but the interfacial area is small; while for high ratios, the oil is not totally emulsified and hence the transfer appears limiting leading to decreasing substrate availability. [on SciFinder(R)]
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Dates et versions

hal-01069499 , version 1 (29-09-2014)

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  • HAL Id : hal-01069499 , version 1

Citer

Gillaume Darracq, Annabelle Couvert, Catherine Couriol, Abdeltif Amrane, Diane Thomas, et al.. Optimization of the volume fraction of an absorbent phase (silicone oil)and biodegradation kinetics of DMDS in a TPPB.. Récents Progrès en Génie des Procédés, 2011, 101, pp.Axx/1--Axx/6. ⟨hal-01069499⟩
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