Continuous hydrogen production from glucose by using extreme thermophilic anaerobic microflora.
Continuous hydrogen production from glucose at 75 degrees C was examined at HRTs of 0.67, 1, 2, and 3 d by using extreme thermophilic microflora, which consisted of several subspecies of Caldanaerobacter subterraneus. The maximum hydrogen yield of 3.32 mol-H2/mol-glucose degraded was obtained at the highest HRT, 3 d. Both the maximum volumetric and specific rates of hydrogen production (1.22 L-H2/L/d and 4.15 L-H2/g-VSS/d, respectively) were obtained at the lowest HRT, 0.67 d. A 16S rDNA analysis showed that the community structure of the microflora did not change at any of the HRTs.
Yokoyama
Hiroshi
H
Waste Recycling Research Team, National Institute of Livestock and Grassland Science (NILGS), 2 Ikenodai, Tsukuba, Ibaraki 305-0901, Japan. hiroshiy@affrc.go.jp
Ohmori
Hideyuki
H
Waki
Miyoko
M
Ogino
Akifumi
A
Tanaka
Yasuo
Y
D001419:Bacteria / Q000378:metabolism*; D001673:Biodegradation, Environmental; D019149:Bioreactors; D001709:Biotechnology / Q000379:methods*; D018929:Cell Culture Techniques; D005285:Fermentation; D005947:Glucose / Q000737:chemistry / Q000378:metabolism*; D006859:Hydrogen / Q000737:chemistry*; D012336:RNA, Ribosomal, 16S / Q000737:chemistry; D013696:Temperature; D014865:Waste Disposal, Fluid
D012336:RNA, Ribosomal, 16S; D006859:Hydrogen; D005947:Glucose