Sustainable fermentative hydrogen production: challenges for process optimisation

被引:715
作者
Hawkes, FR [1 ]
Dinsdale, R
Hawkes, DL
Hussy, I
机构
[1] Univ Glamorgan, Sch Appl Sci, Pontypridd CF37 1DL, M Glam, Wales
[2] Univ Glamorgan, Sch Technol, Pontypridd CF37 1DL, M Glam, Wales
关键词
hydrogen production; fermentation;
D O I
10.1016/S0360-3199(02)00090-3
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
This paper reviews information from continuous laboratory studies of fermentative hydrogen production useful when considering practical applications of the technology. Data from reactors operating with pure cultures and mixed microflora enriched from natural sources are considered. Inocula have been derived from heat-treated anaerobically digested sludge, activated sludge, aerobic compost and soil, and non-heat-treated aerobically composted activated sludge. Most studies are on soluble defined substrates, and there are few reports of continuous operation on complex substrates with mixed microflora, to produce H-2. Methanogenesis which consumes H-2 May be prevented by operation at short hydraulic retention times (around 8-12 h on simple substrates) and/or pH below 6. Although the reactor technology for anaerobic digestion and biohydrogen production from complex substrates may be similar, there are important microbiological differences, including the need to manage spore germination and oxygen toxicity on start-up and control sporulation in adverse circumstances during reactor operation. (C) 2002 International Association for Hydrogen Energy. Published by Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:1339 / 1347
页数:9
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