Biohydrogen Production from Palm Oil Mill Effluent Using Immobilized Mixed Culture

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Abstract

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.

Item Type:	Article
Additional Information:	Indexed in Scopus. IF: 1.955
Uncontrolled Keywords:	Biohydrogen; Immobilized sludge; Suspended cell; Palm oil mill effluent
Subjects:	T Technology > TP Chemical technology Q Science > QD Chemistry
Faculty/Division:	Faculty of Chemical & Natural Resources Engineering Faculty of Civil Engineering & Earth Resources Faculty of Industrial Sciences And Technology
Depositing User:	ina
Date Deposited:	26 May 2014 01:37
Last Modified:	22 Nov 2018 06:56
URI:	http://umpir.ump.edu.my/id/eprint/5822
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