Biogas production from two-stage anaerobic digestion of Jatropha curcas seed cake
Digestion of Jatropha curcas seed cake was investigated in two-stage (acidogenic and methanogenic) anaerobic bioreactors without pH adjustment. Acidogenic reactors were fed once daily with a slurry of 1:10 Jatropha curcas seed cake:water containing approximately 100 g of chemical oxygen demand/l. Or...
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th-mahidol.141052018-06-11T11:47:06Z Biogas production from two-stage anaerobic digestion of Jatropha curcas seed cake N. Sinbuathong P. Sirirote B. Sillapacharoenkul J. Munakata-Marr S. Chulalaksananukul Kasetsart University King Mongkut's University of Technology North Bangkok Colorado School of Mines Mahidol University Energy Digestion of Jatropha curcas seed cake was investigated in two-stage (acidogenic and methanogenic) anaerobic bioreactors without pH adjustment. Acidogenic reactors were fed once daily with a slurry of 1:10 Jatropha curcas seed cake:water containing approximately 100 g of chemical oxygen demand/l. Organic loading rates were 2.5, 3.3, 5, 10, and 20 kg chemical oxygen demand/m 3 .day, which corresponded to hydraulic retention times of 40, 30, 20, 10, and 5 days, respectively, for each reactor stage. The maximum methane yield (340 l at STP/kg of chemical oxygen demand degraded) was observed at an organic loading rate of 3.3 kg chemical oxygen demand/m 3 .day (hydraulic retention times = 30 days for each stage). At this organic loading rate and hydraulic retention time, the chemical oxygen demand degradation efficiency was 65%. The average pH in the acidogenic and methanogenic reactors was 4.9 and 7.4, respectively. This study demonstrates high methane yield and degradation extent of Jatropha curcas seed cake in a two-stage anaerobic process without chemical addition for pH adjustment. © 2012 Copyright Taylor and Francis Group, LLC. 2018-06-11T04:47:06Z 2018-06-11T04:47:06Z 2012-11-01 Article Energy Sources, Part A: Recovery, Utilization and Environmental Effects. Vol.34, No.22 (2012), 2048-2056 10.1080/15567036.2012.664947 15567230 15567036 2-s2.0-84867065271 https://repository.li.mahidol.ac.th/handle/123456789/14105 Mahidol University SCOPUS https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84867065271&origin=inward |
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Digestion of Jatropha curcas seed cake was investigated in two-stage (acidogenic and methanogenic) anaerobic bioreactors without pH adjustment. Acidogenic reactors were fed once daily with a slurry of 1:10 Jatropha curcas seed cake:water containing approximately 100 g of chemical oxygen demand/l. Organic loading rates were 2.5, 3.3, 5, 10, and 20 kg chemical oxygen demand/m 3 .day, which corresponded to hydraulic retention times of 40, 30, 20, 10, and 5 days, respectively, for each reactor stage. The maximum methane yield (340 l at STP/kg of chemical oxygen demand degraded) was observed at an organic loading rate of 3.3 kg chemical oxygen demand/m 3 .day (hydraulic retention times = 30 days for each stage). At this organic loading rate and hydraulic retention time, the chemical oxygen demand degradation efficiency was 65%. The average pH in the acidogenic and methanogenic reactors was 4.9 and 7.4, respectively. This study demonstrates high methane yield and degradation extent of Jatropha curcas seed cake in a two-stage anaerobic process without chemical addition for pH adjustment. © 2012 Copyright Taylor and Francis Group, LLC. |
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Kasetsart University |
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Kasetsart University N. Sinbuathong P. Sirirote B. Sillapacharoenkul J. Munakata-Marr S. Chulalaksananukul |
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Article |
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N. Sinbuathong P. Sirirote B. Sillapacharoenkul J. Munakata-Marr S. Chulalaksananukul |
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N. Sinbuathong |
title |
Biogas production from two-stage anaerobic digestion of Jatropha curcas seed cake |
title_short |
Biogas production from two-stage anaerobic digestion of Jatropha curcas seed cake |
title_full |
Biogas production from two-stage anaerobic digestion of Jatropha curcas seed cake |
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Biogas production from two-stage anaerobic digestion of Jatropha curcas seed cake |
title_full_unstemmed |
Biogas production from two-stage anaerobic digestion of Jatropha curcas seed cake |
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biogas production from two-stage anaerobic digestion of jatropha curcas seed cake |
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2018 |
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https://repository.li.mahidol.ac.th/handle/123456789/14105 |
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1763487631959654400 |