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dc.contributor.authorKu Syahidah, Ku Ismail
dc.contributor.authorGhasem, Najafpour
dc.contributor.authorHabibollah, Younesi
dc.contributor.authorAbdul Rahman, Mohamed
dc.contributor.authorAzlina, Harun Kamaruddin
dc.date.accessioned2009-08-04T08:58:27Z
dc.date.available2009-08-04T08:58:27Z
dc.date.issued2008-05-01
dc.identifier.citationBiochemical Engineering Journal, vol.39 (3), 2008, pages 468-477.en_US
dc.identifier.issn1369-703X
dc.identifier.urihttp://www.sciencedirect.com/science/journal/1369703X
dc.identifier.urihttp://dspace.unimap.edu.my/123456789/6675
dc.descriptionLink to publisher's homepage at www.elsevier.comen_US
dc.description.abstractThis paper presents an alternative solution to the current problem faced by the world; diminishing of fossil fuel. Bioconversion of synthesis gas to hydrogen as clean fuel was catalyzed by a photosynthetic bacterium, Rhodospirillum rubrum. The clean fuel production was biologically mediated by the water–gas shift reaction in a 2 l bioreactor. The work performed was on agitation effects on hydrogen production, KLa and power consumption. The results show that 500 rpm was the suitable agitation rate to be employed. The hydrogen production was optimized at 0.44 ± 0.023 atm giving a KLa of 86.4 ± 3.5 h−1. The production rate was 9.6 mmol H2/h. The maximum light conversion efficiency at agitation speed of 800 rpm, light intensity of 500 lux (732 kW/m2) and 4 g/l inlet acetate concentration was about 10.84 ± 1.73%. At this condition, the maximum CO conversion efficiency was found to be 81 ± 5.6%. The ratio of power per volume was calculated to be 322.30 ± 12.14 kW/m3 and foaming problem was successfully avoided. The corresponding power consumption was estimated to be about 0.64 ± 0.03 kW, while the output hydrogen energy was determined to be 643.2 ± 26 kW. A prolonged operation of continuous hydrogen production employing a microsparger showed stable behaviour for a duration of 27 days.en_US
dc.language.isoenen_US
dc.publisherElsevier B.V.en_US
dc.subjectBioreactorsen_US
dc.subjectHydrogenen_US
dc.subjectRhodospirillum rubrumen_US
dc.subjectSynthesis gasen_US
dc.subjectCOen_US
dc.subjectFossil fuelsen_US
dc.subjectPower resourcesen_US
dc.subjectRenewable energy sourcesen_US
dc.subjectWaste products as fuelen_US
dc.subjectPhotosynthetic bacteriaen_US
dc.titleBiological hydrogen production from CO: Bioreactor performanceen_US
dc.typeArticleen_US


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