Bioconversion of Waste Gases into Biofuel via Fermentation in a Continuous Stirred Tank Bioreactor
Biological hydrogen production was carried out in a continuous stirred tank bioreactor. A photosynthetic bacterium, Rhodospirillum rubrum, was used as biocatalyst to oxidize carbon monoxides in the waste gas generated from biomass in a gasification process. The fresh liquid media was supplied for mi...
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| Format: | Article |
| Language: | English |
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Malaysian Society for Microbiology
2005-01-01
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| Series: | Malaysian Journal of Microbiology |
| Subjects: | |
| Online Access: | http://web.usm.my/mjm/issues/vol1no1/vol1_research1.pdf |
| _version_ | 1811270297223954432 |
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| author | Najafpour, G. Younesi, H. Mohamed, A. R. |
| author_facet | Najafpour, G. Younesi, H. Mohamed, A. R. |
| author_sort | Najafpour, G. |
| collection | DOAJ |
| description | Biological hydrogen production was carried out in a continuous stirred tank bioreactor. A photosynthetic bacterium, Rhodospirillum rubrum, was used as biocatalyst to oxidize carbon monoxides in the waste gas generated from biomass in a gasification process. The fresh liquid media was supplied for microbial growth which contained sodium acetate as carbon source at initial concentration of 4 gL-1. The optimum media space velocity or the suitable ratio of liquid flow rate to the reactor volume (F/VL) was 0.02 h-1. At the steady state condition, the concentration of acetate was independent of the dilution rate and it was approximately 1.5 gL-1. The average cell dry weight in the fermentation broth was at satisfactory concentration, approximately 3.4 gL-1 with dilution rate at 0.55 mL min-1. The maximum value of KLa and CO conversion were about 58 h-1 and 80%, respectively, with agitation speed at 500 rpm and gas flow rate at 14 mL min-1. At this condition, the maximum yield of hydrogen production was 0.82 mmol H2•mmol-1 CO. |
| first_indexed | 2024-04-12T21:58:19Z |
| format | Article |
| id | doaj.art-61b651fff1c145ed82c3b278aab56f96 |
| institution | Directory Open Access Journal |
| issn | 1823-8262 2231-7538 |
| language | English |
| last_indexed | 2024-04-12T21:58:19Z |
| publishDate | 2005-01-01 |
| publisher | Malaysian Society for Microbiology |
| record_format | Article |
| series | Malaysian Journal of Microbiology |
| spelling | doaj.art-61b651fff1c145ed82c3b278aab56f962022-12-22T03:15:12ZengMalaysian Society for MicrobiologyMalaysian Journal of Microbiology1823-82622231-75382005-01-01111217Bioconversion of Waste Gases into Biofuel via Fermentation in a Continuous Stirred Tank BioreactorNajafpour, G.Younesi, H.Mohamed, A. R.Biological hydrogen production was carried out in a continuous stirred tank bioreactor. A photosynthetic bacterium, Rhodospirillum rubrum, was used as biocatalyst to oxidize carbon monoxides in the waste gas generated from biomass in a gasification process. The fresh liquid media was supplied for microbial growth which contained sodium acetate as carbon source at initial concentration of 4 gL-1. The optimum media space velocity or the suitable ratio of liquid flow rate to the reactor volume (F/VL) was 0.02 h-1. At the steady state condition, the concentration of acetate was independent of the dilution rate and it was approximately 1.5 gL-1. The average cell dry weight in the fermentation broth was at satisfactory concentration, approximately 3.4 gL-1 with dilution rate at 0.55 mL min-1. The maximum value of KLa and CO conversion were about 58 h-1 and 80%, respectively, with agitation speed at 500 rpm and gas flow rate at 14 mL min-1. At this condition, the maximum yield of hydrogen production was 0.82 mmol H2•mmol-1 CO.http://web.usm.my/mjm/issues/vol1no1/vol1_research1.pdfContinuous stirred tank bioreactorBiocatalystsPhotosynthetic bacteriaWater-gas shift reactionRhodospirillum rubrum |
| spellingShingle | Najafpour, G. Younesi, H. Mohamed, A. R. Bioconversion of Waste Gases into Biofuel via Fermentation in a Continuous Stirred Tank Bioreactor Malaysian Journal of Microbiology Continuous stirred tank bioreactor Biocatalysts Photosynthetic bacteria Water-gas shift reaction Rhodospirillum rubrum |
| title | Bioconversion of Waste Gases into Biofuel via Fermentation in a Continuous Stirred Tank Bioreactor |
| title_full | Bioconversion of Waste Gases into Biofuel via Fermentation in a Continuous Stirred Tank Bioreactor |
| title_fullStr | Bioconversion of Waste Gases into Biofuel via Fermentation in a Continuous Stirred Tank Bioreactor |
| title_full_unstemmed | Bioconversion of Waste Gases into Biofuel via Fermentation in a Continuous Stirred Tank Bioreactor |
| title_short | Bioconversion of Waste Gases into Biofuel via Fermentation in a Continuous Stirred Tank Bioreactor |
| title_sort | bioconversion of waste gases into biofuel via fermentation in a continuous stirred tank bioreactor |
| topic | Continuous stirred tank bioreactor Biocatalysts Photosynthetic bacteria Water-gas shift reaction Rhodospirillum rubrum |
| url | http://web.usm.my/mjm/issues/vol1no1/vol1_research1.pdf |
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