Akhbari, Azam and Awalin, Lilik Jamilatul and Wen, Low Chin and Ali, Mohd Syukri and Ibrahim, Shaliza (2024) Evolution of microbial community structure during biohydrogen production process of palm oil anaerobic sludge. Renewable Energy, 237 (B). p. 121677. ISSN 0960-1481, DOI https://doi.org/10.1016/j.renene.2024.121677.
Full text not available from this repository.Abstract
Anaerobic microbial communities and their functions can provide information about waste management practices, as well as reveal novel degradation metabolisms that can be utilized in wastewater treatment. This study was aimed towards sustainable palm oil industry with assessing the microbial evolution during the dark fermentative processing of palm oil anaerobic sludge and palm oil mill effluent (POME) in batch-mode over twomonths with a distinct incubation time of 24 h. The process was designed using response surface methodology (RSM) by acclimatization of inoculum using POME with a chemical oxygen demand (COD) of 36 g-COD/l. The effect of mesophilic and thermophilic conditions and pH on COD removal, hydrogen content, and hydrogen yield (HY) were investigated. A potential sample was selected for microbial analysis after the first and second months of operation based on the maximum outputs achieved throughout the experiment. The bacterial community at pH 5.6 and temperature 55 degrees C with maximum hydrogen content of 64.13 %, and HY of 0.93 ml H2/g-COD was dominated by three phyla: Firmicutes, Actinobacteria, and Bacteroidota. The results obtained from high throughput pyrosequencing showed that how acclimatization period affects the microbial community structure towards Firmicutes phylum, which includes the majority of hydrogen-producing microorganisms.
| Item Type: | Article |
|---|---|
| Funders: | Swedish Energy Agency (310432), Research University of Tabriz (RU019D-2014A) |
| Uncontrolled Keywords: | Bio-hydrogen; Dark fermentation; Palm oil mill effluent; Microbial community structure; Renewable energy |
| Subjects: | S Agriculture > S Agriculture (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. Juhaida Abd Rahim |
| Date Deposited: | 18 Feb 2025 02:06 |
| Last Modified: | 18 Feb 2025 02:06 |
| URI: | http://eprints.um.edu.my/id/eprint/47389 |
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