Mohammadi, P. and Ibrahim, S. and Annuar, M.S.M. (2014) High-rate fermentative hydrogen production from palm oil mill effluent in an up-flow anaerobic sludge blanket-fixed film reactor. Chemical Engineering Research and Design, 92 (10). pp. 1811-1817. ISSN 0263-8762, DOI https://doi.org/10.1016/j.cherd.2014.04.023.
Full text not available from this repository.Abstract
The major problem associated with UASB reactors for biotransformation of organic matter to hydrogen is the long start-up period (2–4 months) required for the growth of the microbial granules. In this study, an integration of granular sludge system and a fixed film reactor in a single reactor was applied to overcome this problem. An up-flow anaerobic sludge blanket-fixed film (UASB-FF) reactor was initially inoculated with heat pretreated seed sludge as inoculum and operated as closed-loop fed-batch for five days (HRT = 24 h; 38 °C; pH 5.5). The reactor was continuously fed with fresh pre-settled POME in order to shorten the start-up period. The organic loading was gradually increased from 4.7 to 51.8 g/L d. Granular sludge rapidly developed within 22 days. Specific hydrogen production rate was 0.514 L H2/g VSS d at the end of the start-up period. Speedy development of bio-granules was attributed to biomass recirculation and the establishment of a fixed film at the upper section of the UASB-FF reactor that resulted in improved interactions among the bacterial consortium.
| Item Type: | Article |
|---|---|
| Funders: | Universiti Malaya from (1) Biohydrogen production from renewable resource using indigenous microorganisms (53-02-03-1013) and (2) UMRG (RG054 09SUS) |
| Uncontrolled Keywords: | Fermentative hydrogen production; Granulated sludge formation; UASB-FF; Bioreactor start-up; Palm oil mill effluent; COD removal |
| Subjects: | Q Science > QH Natural history T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Faculty of Engineering Faculty of Science > Institute of Biological Sciences |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 27 Apr 2018 02:40 |
| Last Modified: | 27 Apr 2018 02:40 |
| URI: | http://eprints.um.edu.my/id/eprint/18631 |
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