Activated sludge acclimation for toluene and DEHP degradation in a two-phase partitioning bioreactorBiodegradation of volatile organic compounds by activated sludge

被引：0
作者：
I. Béchohra
J. B. Le Menn
A. Couvert
A. Amrane
机构：
[1] Ecole Nationale Supérieure de chimie de Rennes,Equipe CIP, UMR CNRS 6226 ISCR
[2] Université Européenne de Bretagne,CNRS, UMR 6226
[3] Université de Rennes 1,undefined
来源：
International Journal of Environmental Science and Technology | 2016年 / 13卷
关键词：
Toluene; DEHP; Activated sludge; Biodegradation; Acclimation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The effect of activated sludge acclimation on the biodegradation of toluene in the presence of a biodegradable non-aqueous phase liquid, di (2-ethylhexyl) phthalate (DEHP), in a two-phase partitioning bioreactor was characterized. The influence of the presence of DEHP, at a ratio of 0.1 % (volume ratio), and of the acclimation of activated sludge (AS) on the biodegradation of hydrophobic VOC was studied. AS was acclimated to both toluene and DEHP simultaneously. Using acclimated cells, 73 and 96 % improvement of the mean biodegradation rates was recorded for toluene and the organic solvent (DEHP), respectively, if compared to the values recorded in the absence of acclimation, during tests performed in Erlenmeyer flasks. Degradation rates were further improved by the use of acclimated AS in a reactor with a large head space; degradation yields for toluene and DEHP were above 99 and 89 %, respectively.
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页码：1883 / 1890
页数：7
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