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Evaluation of dried sweet sorghum stalks as raw material for methane production
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Chemical Engineering.ORCID iD: 0000-0002-3687-6173
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Chemical Engineering.ORCID iD: 0000-0001-7500-2367
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Chemical Engineering.ORCID iD: 0000-0003-0079-5950
2014 (English)In: BioMed Research International, ISSN 2314-6133, E-ISSN 2314-6141, Vol. 2014, article id 731731Article in journal (Refereed) Published
Abstract [en]

The potential of utilizing dried sweet sorghum stalks as raw material for anaerobic digestion has been evaluated. Two different treatments were tested, a mild thermal and an enzymatic, alone or in combination. Thermal pretreatment was found to decrease the methane yields, whereas one-step enzymatic treatment resulted in a significant increase of 15.1% comparing to the untreated sweet sorghum. Subsequently, in order to increase the total methane production, the combined effect of enzyme load and I/S on methane yields from sweet sorghum was evaluated by employing response surface methodology. The obtained model showed that the maximum methane yield that could be achieved is 296 mL CH4/g VS at I/S ratio of 0.35 with the addition of 11.12 FPU/g sweet sorghum.

Place, publisher, year, edition, pages
2014. Vol. 2014, article id 731731
National Category
Bioprocess Technology
Research subject
Biochemical Process Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-5554DOI: 10.1155/2014/731731Local ID: 3ae33a90-55c2-405b-8d5b-cf050f2c4ce7OAI: oai:DiVA.org:ltu-5554DiVA: diva2:978428
Note
Validerad; 2014; 20140729 (pauchr)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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