文章基本信息

标题：Thermo-acidophillic biohydrogen production from rice bran de-oiled wastewater by Selectively enriched mixed culture
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作者：D. Sivaramakrishna ; D. Sreekanth ; V. Himabindu 等
期刊名称：International Journal of Energy and Environment
印刷版ISSN：2076-2895
电子版ISSN：2076-2909
出版年度：2010
卷号：1
期号：4
页码：657-666
出版社：International Energy and Environment Foundation (IEEF)
摘要：The present study focuses on the biohydrogen production in an anaerobic batch reactor operated at thermophillic (570C) and acidophilic conditions (pH 6) with rice bran de-oiled wastewater (RBOW) as substrate. The hydrogen generating mixed microflora was enriched from slaughter house sludge (SHS) through acid treatment (pH 3-4, for 24h) coupled with heat treatment (1h at 1000C) to eliminate non-spore forming bacteria and to inhibit the growth of methanogenic bacteria (MB) prior to inoculation in the reactor. The hydrogen production rate was maximum at 570C (1861±14ml/L-WW/d) compared to 370C (651±30ml/L-ww/d). The Hydrogen yield increased with temperature from 1.1 to 2.2 molH₂/mol of substrate respectively. The optimum pH range for hydrogen production in this system was observed in between 5.5 to 6. Acid-forming pathway with butyric acid as a major metabolite dominated the metabolic flow during the hydrogen production.