Akhbari, Azam and Ibrahim, Shaliza and Ahmad, Muhammad Shakeel (2023) Optimization of up-flow velocity and feed flow rate in up-flow anaerobic sludge blanket fixed-film reactor on bio-hydrogen production from palm oil mill effluent. Energy, 266. ISSN 0360-5442, DOI https://doi.org/10.1016/j.energy.2022.126435.
Full text not available from this repository.Abstract
The present study aims to optimize key operational parameters of the up-flow anaerobic sludge blanket fixed-film (UASFF) reactor using response surface methodology (RSM). A central composite design (CCD) has been applied to accomplish thirteen experimental runs given two main variables, namely feed flow rate (Qf), and up-flow velocity (Vup). The maximum hydrogen content, hydrogen production rate (HPR), hydrogen yield (HY), and COD removal were achieved at 55%, 4800 mL H2/cycle, 321 mL H2/g-COD, and 24.33%, respectively at Qf 8 L/ cycle (HRT = cycle = 10.5 h) and Vup 2.0 m/h. The performance of the parameters from the optimum identified area was assessed at Qf 5.5 L/cycle (HRT = 15.3 h), and Vup 1.8 m/h, resulted in a maximum hydrogen content, HY, and HPR of 72%, 340 mL H2/g-COD, and 5100 mL H2/cycle, respectively. At optimum conditions, Clostridium sensu stricto 1 was found to be the dominant hydrogen-producing bacteria in the system. The results of this study may provide a practical basis for developing a UASFF reactor prototype based on empirical data.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | Palm oil mill effluent; Up-flow anaerobic sludge blanket fixed-film; reactor; Bio-hydrogen; Response surface methodology; Microbial community analysis |
| Subjects: | Q Science > QH Natural history > QH301 Biology T Technology > T Technology (General) |
| Divisions: | Deputy Vice Chancellor (Research & Innovation) Office > Institute of Ocean and Earth Sciences Deputy Vice Chancellor (Research & Innovation) Office > UM Power Energy Dedicated Advanced Centre |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 19 Oct 2024 06:29 |
| Last Modified: | 19 Oct 2024 06:29 |
| URI: | http://eprints.um.edu.my/id/eprint/39185 |
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