High-rate fermentative hydrogen production from palm oil mill effluent in an up-flow anaerobic sludge blanket-fixed film reactor

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

Full text not available from this repository.
Official URL: https://doi.org/10.1016/j.cherd.2014.04.023

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
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

Actions (login required)

View Item View Item