Enhancing solubilisation and methane production kinetic of switchgrass by microwave pretreatment

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DOIResolve DOI: http://doi.org/10.1016/j.biortech.2010.11.069
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TypeArticle
Journal titleBioresource Technology
Volume102
Issue3
Pages35353540; # of pages: 6
SubjectPretreatment; Lignocellulose; Digestibility; Microwave; Anaerobic digestion
AbstractThis study investigated the effects of microwave pretreatment of switchgrass in order to enhance its anaerobic digestibility. Response surface analysis was applied to screen the effects of temperature and time of microwave pretreatment on matter solubilisation. The composite design showed that only temperature had a significant effect on solubilisation level. Then the effects of the microwave pretreatment were correlated to the pretreatment temperature. The sCOD/tCOD ratio was equal to 9.4% at 90 °C and increased until 13.8% at 180 °C. The BMP assays of 42 days showed that microwave pretreatment induced no change on the ultimate volume of methane but had an interesting effect on the reaction kinetic. Indeed, the time required to reach 80% of ultimate volume CH4 is reduced by 4.5 days at 150 °C using the microwave pretreatment.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Biotechnology Research Institute
Peer reviewedYes
NRC number53341
NPARC number16751235
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Record identifier60e3a60b-e386-4c54-9104-9cd7c5080b30
Record created2011-03-31
Record modified2016-05-09
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