期刊
BIORESOURCE TECHNOLOGY
卷 145, 期 -, 页码 116-122出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2013.01.137
关键词
Chlorella sorokiniana; CO2 sequestration; Algal biomass; E. cloacae IIT-BT 08; Biohydrogen
资金
- Royal Norwegian Embassy, New Delhi, India
- Council of Scientific and Industrial Research (CSIR), Govt. of India
The present study investigated to find out the suitability of the CO2 sequestered algal biomass of Chlorella sorokiniana as substrate for the hydrogen production by Enterobacter cloacae IIT-BT 08. The maximum biomass productivity in continuous mode of operation in autotrophic condition was enhanced from 0.05 g L-1 h(-1) in air to 0.11 g L-1 h(-1) in 5% air-CO2 (v/v) gas mixture at an optimum dilution rate of 0.05 h(-1). Decrease in steady state biomass and productivity was less sensitive at higher dilution and found fitting with the model proposed by Eppley and Dyer (1965). Pretreated algal biomass of 10 g L-1 with 2% (v/v) HCl-heat was found most suitable for hydrogen production yielding 9 +/- 2 Mal H-2 (kg COD reduced)(-1) and was found fitting with modified Gompertz equation. Further, hydrogen energy recovery in dark fermentation was significantly enhanced compared to earlier report of hydrogen production by biophotolysis of algae. (C) 2013 Elsevier Ltd. All rights reserved.
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