Characterization of Ultrasonic Treatment of Ethanol Co-Products for Enhanced Biogas Production

dc.contributor.author Hearn, Cody
dc.contributor.author Grewell, David
dc.contributor.author Wu-haan, Wei
dc.contributor.author Burns, Robert
dc.contributor.author Moody, Lara
dc.contributor.department Department of Agricultural and Biosystems Engineering (ENG)
dc.date 2018-02-13T07:34:30.000
dc.date.accessioned 2020-06-29T22:33:05Z
dc.date.available 2020-06-29T22:33:05Z
dc.date.copyright Tue Jan 01 00:00:00 UTC 2008
dc.date.embargo 2013-03-21
dc.date.issued 2008-06-01
dc.description.abstract <p>This study evaluates the change in particle size of dry-milling corn ethanol co-products by using ultrasonic energy to increase the production of the biogas from the anaerobic digestion of ethanol dry-milling co-products, namely: dried distiller grain with solubles (DDGS), solids, thin stillage, and corn-syrup. The co-product samples were treated with various ultrasonic conditions and compared to non-treated samples (control sample). The ultrasonic amplitude was varied from 52.8 µm <sub>pp </sub>to 160 µm <sub>pp </sub>and the sonication time was varied from 10 to 50s. The samples were characterized with scanning electron and optical microscopy (SEM, OM) and particle distribution analysis (PDA). It was found that with solid/liquid suspensions (DDGS, solids), there was a significant decrease in particle size, increasing the surface area to volume ratio, to possibly enhance biogas yield during anaerobic digestion of these materials. In the case of thin stillage and corn syrup, the results were surprising in that an increase in particle size was seen.</p>
dc.description.comments <p>This is an ASABE Meeting Presentation, Paper No. <a href="http://elibrary.asabe.org/abstract.asp?aid=25152&t=3&dabs=Y&redir=&redirType=" target="_blank">084668</a>.</p>
dc.identifier archive/lib.dr.iastate.edu/abe_eng_conf/281/
dc.identifier.articleid 1276
dc.identifier.contextkey 3940473
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_conf/281
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/296
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_conf/281/2008_HearnCJ_CharacterizationUltrasonicTreatment.pdf|||Fri Jan 14 23:10:24 UTC 2022
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.keywords Biochemical methane potential (BMP)
dc.subject.keywords methane
dc.subject.keywords ultrasonic
dc.subject.keywords dry distillers grains with solubles (DDGS)
dc.subject.keywords corn-ethanol by-products
dc.title Characterization of Ultrasonic Treatment of Ethanol Co-Products for Enhanced Biogas Production
dc.type article
dc.type.genre conference
dspace.entity.type Publication
relation.isAuthorOfPublication 5c74e8c8-30d2-4f0c-b311-91c8c467961f
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
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