High-rate fermentative hydrogen production from palm oil mill effluent in an up-flow anaerobic sludge blanket-fixed film reactor
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 app...
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| Format: | Article |
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Institution of Chemical Engineers
2014
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| _version_ | 1825721143470850048 |
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| author | Mohammadi, P. Ibrahim, S. Annuar, M.S.M. |
| author_facet | Mohammadi, P. Ibrahim, S. Annuar, M.S.M. |
| author_sort | Mohammadi, P. |
| collection | UM |
| description | 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. |
| first_indexed | 2024-03-06T05:45:53Z |
| format | Article |
| id | um.eprints-18631 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:45:53Z |
| publishDate | 2014 |
| publisher | Institution of Chemical Engineers |
| record_format | dspace |
| spelling | um.eprints-186312018-04-27T02:40:31Z http://eprints.um.edu.my/18631/ High-rate fermentative hydrogen production from palm oil mill effluent in an up-flow anaerobic sludge blanket-fixed film reactor Mohammadi, P. Ibrahim, S. Annuar, M.S.M. QH Natural history TA Engineering (General). Civil engineering (General) 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. Institution of Chemical Engineers 2014 Article PeerReviewed 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 <https://doi.org/10.1016/j.cherd.2014.04.023>. https://doi.org/10.1016/j.cherd.2014.04.023 doi:10.1016/j.cherd.2014.04.023 |
| spellingShingle | QH Natural history TA Engineering (General). Civil engineering (General) Mohammadi, P. Ibrahim, S. Annuar, M.S.M. High-rate fermentative hydrogen production from palm oil mill effluent in an up-flow anaerobic sludge blanket-fixed film reactor |
| title | High-rate fermentative hydrogen production from palm oil mill effluent in an up-flow anaerobic sludge blanket-fixed film reactor |
| title_full | High-rate fermentative hydrogen production from palm oil mill effluent in an up-flow anaerobic sludge blanket-fixed film reactor |
| title_fullStr | High-rate fermentative hydrogen production from palm oil mill effluent in an up-flow anaerobic sludge blanket-fixed film reactor |
| title_full_unstemmed | High-rate fermentative hydrogen production from palm oil mill effluent in an up-flow anaerobic sludge blanket-fixed film reactor |
| title_short | High-rate fermentative hydrogen production from palm oil mill effluent in an up-flow anaerobic sludge blanket-fixed film reactor |
| title_sort | high rate fermentative hydrogen production from palm oil mill effluent in an up flow anaerobic sludge blanket fixed film reactor |
| topic | QH Natural history TA Engineering (General). Civil engineering (General) |
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