Journal
BIORESOURCE TECHNOLOGY
Volume 213, Issue -, Pages 21-30Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2016.02.040
Keywords
Extracellular polymeric substances; Wastewater treatment; Response surface methodology; Bioreactor; Bacillus sp.
Funding
- UPOE II of University Grants Commission, New Delhi, India
- University Grants Commission (UGC), New Delhi, Government of India
Ask authors/readers for more resources
The present work involved study of wastewater contaminant removal along with EPS production by a thermotolerant bacterium Bacillus sp. ISTVK1, isolated from heat shocked sewage sludge. EPS production in basal and mineral medium containing 50% filter sterilized wastewater and 0.5% sucrose was found to be 0.83 +/- 0.12 g L-1 and 0.31 +/- 0.10 g L-1 culture, respectively. GC-MS analysis of EPS revealed the presence of beta-D-glucose, alpha-D-galactose and beta-D-arabinose. FT-IR spectrum confirmed the presence carbohydrates. Box-Behnken design was used to optimize process parameters for enhanced EPS production along with % COD reduction of wastewater. The optimised conditions when used in a 1.5 L bioreactor showed EPS production of 1.67 +/- 0.06 g L-1 culture and 93.0 +/- 0.21 % COD removal. (C) 2016 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available