NDLI: H2 production with anaerobic sludge using activated-carbon supported packed-bed bioreactors

Content Provider	Springer Nature Link
Author	Lee, Kuo Shing Lo, Yung Sheng Lo, Yung Chung Lin, Ping Jei Chang, Jo Shu
Copyright Year	2003
Abstract	Packed-bed bioreactors containing activated carbon as support carrier were used to produce H2 anaerobically from a sucrose-limiting medium while acclimated sewage sludge was used as the H2 producer. The effects of bed porosity (εb) and substrate loading rate on H2 fermentation were examined using packed beds with εb of 70–90% being operated at hydraulic retention times (HRT) of 0.5–4 h. Higher εb and lower HRT favored H2 production. With 20 g COD l−1 of sucrose in the feed, the optimal H2 production rate (7.4 l h−1 l−1) was obtained when the bed with εb=90% was operated at HRT = 0.5 h. Flocculation of cells enhanced the retention of sludge for stable operations of the bioreactor at low HRTs. The gas products resulting from fermentative H2 production consisted of 30–40% H2 and 60–70% CO2. Butyric acid was the primary soluble product, followed by propionic acid and valeric acid.
Starting Page	133
Ending Page	138
Page Count	6
File Format	PDF
ISSN	01415492
Journal	Biotechnology Letters
Volume Number	25
Issue Number	2
e-ISSN	15736776
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2003-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Biotechnology Organic Chemistry Biochemistry Microbiology Animal Anatomy / Morphology / Histology
Content Type	Text
Resource Type	Article
Subject	Medicine Bioengineering Applied Microbiology and Biotechnology Biotechnology

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