Impacts of Temperatures on Biogas Production in Dairy Manure Anaerobic Digestion

dc.contributor.author Pandey, Pramod
dc.contributor.author Soupir, Michelle
dc.contributor.department Agricultural and Biosystems Engineering
dc.date 2018-02-14T12:24:41.000
dc.date.accessioned 2020-06-29T22:40:40Z
dc.date.available 2020-06-29T22:40:40Z
dc.date.copyright Sun Jan 01 00:00:00 UTC 2012
dc.date.embargo 2014-09-06
dc.date.issued 2012-10-01
dc.description.abstract <p>Batch anaerobic digestion of dairy manure was performed at low (25ºC), mesophilic (37ºC), and thermophilic (52.5ºC) temperatures to determine the influences of temperatures on biogas production. The experiment was runfor 76, 40 and 29 days at 25, 37, and 52.5ºC, respectively. The biogas production was measured daily at each temperature. To estimate the solid reductions, we measured total solids (TS) andvolatile solids (VS) over time. The biogas production at 52.5ºCand 37ºC were 49 and 17 times higher than that at 25ºC. Over incubation periods, the TS reduction at 25, 37, and 52.5ºC were5.6, 57, 34%, respectively. The VS reductions were 127, 58.4, 42.5%, respectively. At 25 and 37 ºC, pH was reduced, while at52.5 ºC pH was increased. The Oxidation Reduction Potential (ORP) values at 37 and 52.5ºC were negative over the incubation period. But at 25ºC, however, the ORP values were positive after Day 19. Findings from this study are useful for enhancing anaerobic digesters’ performance.</p>
dc.description.comments <p>This article is from <em>International Journal of Engineering and Technology</em> 4 (2012): 629–631, doi:<a href="http://dx.doi.org/10.7763/IJET.2012.V4.448" target="_blank">10.7763/IJET.2012.V4.448</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/abe_eng_pubs/537/
dc.identifier.articleid 1820
dc.identifier.contextkey 6084168
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_pubs/537
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/1314
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_pubs/537/448_S20011.pdf|||Sat Jan 15 00:51:57 UTC 2022
dc.source.uri 10.7763/IJET.2012.V4.448
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.disciplines Water Resource Management
dc.subject.keywords Anaerobic digestion
dc.subject.keywords biogas production
dc.subject.keywords TS
dc.subject.keywords VS
dc.subject.keywords ORP
dc.title Impacts of Temperatures on Biogas Production in Dairy Manure Anaerobic Digestion
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 04becbfb-7a97-4d96-a0dd-5514295530ee
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
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