Biohydrogen Production from Palm Oil Mill Effluent Using Immobilized Mixed Culture
Cell immobilization techniques were adopted to bio-hydrogen production using immobilized anaerobic sludge as the seed culture. Palm oil mill ef�uent (POME) was used as the substrate carbon source. It was found that with a POME concentration of 20 g COD/l in the feed, the suspended-cell containing...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2013
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| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/5822/ http://umpir.ump.edu.my/id/eprint/5822/ http://umpir.ump.edu.my/id/eprint/5822/ http://umpir.ump.edu.my/id/eprint/5822/1/fkasa-zularisam-2014-Biohydrogen_production_abs_only.pdf |
| Summary: | Cell immobilization techniques were adopted to bio-hydrogen production using immobilized anaerobic sludge as the seed culture. Palm oil mill ef�uent (POME) was used as the substrate carbon source. It was found that with a POME concentration of 20 g COD/l in the feed, the suspended-cell containing reactor was able to produce hydrogen at an optimal rate of 0.348 l H/(l POME h) at HRT 6 h. However, the immobilized-cell containing reactor exhibited a better hydrogen production rate of 0.589 l H2/(l POMEh), which occurred at HRT 2 h. When the immobilized-cell containing reactor was scaled up to 5 l, the hydrogen production rate was 0.500�0.588 l H/(l POME h) for HRT 2�10 h, but after a thermal treatment(60 8C, 1 h) the rate increase to 0.632 l H 22/(l POME h) at HRT 2 h. The main soluble metabolites were butyric acid and acetic acid, followed by propionic acid and ethanol. |
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