Separation of silicone oil droplets dispersed in activated sludge

Emanuel Granero-Fernandez; Eric Dumont; Charlotte Picard; Maxime Guillerm; Emanuel Granero Fernandez; Christophe Stavrakakis; Edith Norrant; Catherine Juery; Nicolas Lesage; Franck Rouxel; Béatrice Balannec; Abdeltif Amrane; Annabelle Couvert

doi:10.1080/01496395.2020.1758942

Journal articles

Separation of silicone oil droplets dispersed in activated sludge

Emanuel Granero-Fernandez ¹ Eric Dumont ² Charlotte Picard ¹ Maxime Guillerm ¹ Emanuel Granero Fernandez Christophe Stavrakakis ³ Edith Norrant Catherine Juery ⁴ Nicolas Lesage ⁵ Franck Rouxel ⁶ Béatrice Balannec ¹ Abdeltif Amrane ^{1, *} Annabelle Couvert ¹

* Corresponding author

1 ISCR - Institut des Sciences Chimiques de Rennes

2 GEPEA - Laboratoire de génie des procédés - environnement - agroalimentaire

3 ADEME - Agence de l'Environnement et de la Maîtrise de l'Energie

4 CReS - TOTAL, Centre de recherche de Solaize

5 CSTJF - Centre scientifique et Technique Jean Feger

6 SFR IBSM - Ingénierie des Biopolymères pour la Structuration de Matrices et des Matériaux

Abstract : A process in three steps involving a gas-liquid contactor with an organic phase, a TPPB and a liquid/liquid separator to recover the organic phase for its recycling was proposed to treat hydrophobic Volatile Organic Compounds. Among the processes tested for liquid/liquid separation (settling, hydrocyclone and centrifugation), the latter appeared to be the most efficient. The centrifugal acceleration needed for the separation of oil and water was found to be dependent on the viscosity of the oil used and the presence of microorganisms. The force required for phases' separation was found to be reduced in the presence of selected commercial demulsifiers.

Keywords : Activated sludge emulsion liquid liquid Separation silicone oil toluene Emulsion Liquid/liquid Separation Silicone oil Toluene

Document type :

Journal articles

Domain :

Chemical Sciences / Chemical engineering

Environmental Sciences / Environmental Engineering

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https://hal.archives-ouvertes.fr/hal-02886551
Contributor : Laurent Jonchère <>
Submitted on : Tuesday, March 2, 2021 - 4:31:06 PM
Last modification on : Wednesday, April 7, 2021 - 3:18:14 PM

Separation of silicone oil droplets dispersed in activated sludge

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Separation of silicone oil droplets dispersed in activated sludge

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