Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)
Online ISSN : 2185-6648
ISSN-L : 2185-6648
Journal of Environmental Engineering Research, Vol.52
EFFECT OF NUTRIENTS ON HYPER-THERMOPHILIC HYDROGEN FERMENTATION FROM TOILET PAPER
Hongyu JIANGMing CONGToshimasa HOJOYuyou LI
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2015 Volume 71 Issue 7 Pages III_11-III_18

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Abstract
 Effect of nutrients on hydrogen fermentation of toilet paper under hyper-thermophilic condition was investigated by a lab-scale experiment. The study was conducted with a long-term continuously stirred tank reactor (CSTR) using toilet paper (cellulosic waste) with glucose as co-substrate by anaerobic mixed microflora at 65 ± 1°C. In order to understand the effect of nutrients on metabolic pathway, a series of biogas production, composition and metabolic byproducts analysis was carried out. A maximal hydrogen yield of 1.82 mol H2/ mol Hexose was obtained at a nutrients condition that support 30% of cells synthesis, with acetate, butyrate and ethanol as main soluble byproducts. The experimental results suggest that amount of nutrients has a greater effect on increasing cellulosic hydrolysis, acidogenesis and the hydrogen yield from cellulosic biomass.
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© 2015 Japan Society of Civil Engineers
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