NDLI: Activated Sludge Acclimation for Hydrophobic VOC Removal in a Two-Phase Partitioning Reactor

Content Provider	Springer Nature Link
Author	Darracq, Guillaume Couvert, Annabelle Couriol, Catherine Dumont, Eric Amrane, Abdeltif Cloirec, Pierre
Copyright Year	2012
Abstract	The effect of activated sludge acclimation on the biodegradation of toluene and dimethyldisulphide (DMDS) in the presence of a non-aqueous phase liquid, polydimethylsiloxane (PDMS), in a two-phase partitioning bioreactor was characterized. The influence of the presence of PDMS, at a ratio of 25% (v/v), and acclimation of activated sludge on two hydrophobic VOC biodegradation was studied. Activated sludge were acclimated to each VOC and in the presence of the non-aqueous phase liquid, namely in the emulsion of PDMS in water. Using acclimated cells, 97.9% and 108.7% improvement of the mean biodegradation rates were recorded for toluene and DMDS, respectively, if compared to the values recorded in the absence of acclimation. While and in agreement with the lower solubility in water of DMDS if compared to toluene, a most significant effect of PDMS addition on the rate of DMDS removal was recorded, 87.0% and 153.6% for toluene and DMDS, respectively. In addition and if both biomass acclimation and PDMS addition were considered, overall improvements of the removal rates were 204% and 338% for toluene and DMDS.
Starting Page	3117
Ending Page	3124
Page Count	8
File Format	PDF
ISSN	00496979
Journal	Water, Air, and Soil Pollution
Volume Number	223
Issue Number	6
e-ISSN	15732932
Language	English
Publisher	Springer Netherlands
Publisher Date	2012-02-02
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	VOC Non-aqueous phase liquid Biodegradation kinetics Activated sludge Acclimation Soil Science & Conservation Environment Climate Change Hydrogeology Waste Water Technology Water Pollution Control Water Management Aquatic Pollution Atmospheric Protection/Air Quality Control/Air Pollution
Content Type	Text
Resource Type	Article
Subject	Ecological Modeling Environmental Chemistry Pollution Environmental Engineering Water Science and Technology

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