Publication: Influences of size reduction, hydration, and thermal-assisted hydration pretreatment to increase the biogas production from Napier grass and Napier silage
5
Issued Date
2021-07-01
Resource Type
ISSN
18732976
09608524
09608524
Other identifier(s)
2-s2.0-85104930654
Rights
Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
Bioresource Technology. Vol.331, (2021)
Suggested Citation
Umarin Jomnonkhaow, Sureewan Sittijunda, Alissara Reungsang Influences of size reduction, hydration, and thermal-assisted hydration pretreatment to increase the biogas production from Napier grass and Napier silage. Bioresource Technology. Vol.331, (2021). doi:10.1016/j.biortech.2021.125034 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/76520
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Title
Influences of size reduction, hydration, and thermal-assisted hydration pretreatment to increase the biogas production from Napier grass and Napier silage
Abstract
Pretreatment of lignocellulose materials prior to biogas production is required to minimize biomass recalcitrance and increase biomass digestibility. In this study, the effects of particle size reduction, hydration, and thermal-assisted hydration on Napier grass and silage for methane production were evaluated. Compared to the 4.75-mm particle size Napier grass and silage, 0.425-mm Napier grass and silage showed 72% and 46% increases in methane yield, respectively, whereas hydration pretreatment using hydrogenic effluent increased the methane yields from Napier grass and silage by 23% and 56%, respectively. Superior effects were observed when Napier grass and silage were pretreated with thermal-assisted hydration using hydrogenic effluent for 60 and 15 min, respectively, resulting in methane yields of 385 and 331 mL CH4/g substrateadded. The results indicate that size reduction accompanied by thermal-assisted hydration using hydrogenic effluent as a hydration medium significantly improved the biodegradability of Napier grass and silage.