Identification and evaluation of VOCs evolved from warm season swine mortality composts

dc.contributor.author Glanville, Thomas
dc.contributor.author Raman, D. Raj
dc.contributor.author Ahn, Heekwon
dc.contributor.author Glanville, Thomas
dc.contributor.author Crawford, Benjamin
dc.contributor.author Hermiston, Patrick
dc.contributor.author Koziel, Jacek
dc.contributor.author Raman, D. Raj
dc.contributor.author Pometto, Anthony
dc.contributor.author Beattie, Sam
dc.contributor.department Agricultural and Biosystems Engineering
dc.date 2018-02-13T03:44:58.000
dc.date.accessioned 2020-06-29T22:35:02Z
dc.date.available 2020-06-29T22:35:02Z
dc.date.copyright Tue Jan 01 00:00:00 UTC 2008
dc.date.embargo 2012-12-07
dc.date.issued 2008-06-01
dc.description.abstract <p>The intensive production of swine in Iowa (28.4 % of the U.S.A production) inevitably results in high amounts of piggery waste including animal carcasses. Composting is an environmentally sound and relatively inexpensive method to dispose swine mortalities especially when the carcasses are diseased. Measurement of VOC emissions is an alternative to test progress and completion of the process. In this study, diseased swine mortalities are composted in summer conditions of Central Iowa. Corn silage, oat straw and corn stalks are used as envelope materials. Once a week, air samples are collected from the center of test units and sampled with 85 µm Carboxen/ polydimethylsiloxane (CAR/PDMS) solid phase microextraction (SPME) fiber. Samples were analyzed using gas chromatography (GC) - mass spectrometry (MS). The objective of the study is to investigate the potential usage of VOCs as indicators of swine mortality degradation. It is found that nitrogen and sulfur containing compounds can be used as indicators of the composting process. Sulfur-containing compounds are detected from all test units. Nitrogen-containing compounds are detected from only corn silage test units. It is concluded that carcass degradation is incomplete in all of the test units. Carcass degradation in corn stalks and oat straw test units is better than corn silage test units. These results are supported with respiration rate results. Respiration rates of the remaining swine carcasses are found to be between 5-7 mg CO2-C g VS-1d-1 and swine carcasses are categorized as moderately unstable composts.</p>
dc.description.comments <p>This is an ASABE Meeting Presentation, Paper No. <a href="http://elibrary.asabe.org/abstract.asp?aid=24926&t=3&dabs=Y&redir=&redirType=" target="_blank">085047</a>.</p>
dc.identifier archive/lib.dr.iastate.edu/abe_eng_conf/52/
dc.identifier.articleid 1053
dc.identifier.contextkey 3522302
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_conf/52
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/560
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_conf/52/Raman_2008_IdentificationEvaluationVOCs.pdf|||Sat Jan 15 00:45:55 UTC 2022
dc.source.uri 10.13031/2013.24926
dc.subject.disciplines Biochemical and Biomolecular Engineering
dc.subject.disciplines Biochemistry
dc.subject.disciplines Biological Engineering
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.disciplines Food Science
dc.subject.disciplines Human and Clinical Nutrition
dc.subject.disciplines Molecular Biology
dc.subject.keywords Chemical and Biological Engineering
dc.subject.keywords Biochemistry Biophysics and Molecular Biology
dc.subject.keywords Compost
dc.subject.keywords GC-MS
dc.subject.keywords SPME
dc.subject.keywords swine mortality
dc.subject.keywords VOC
dc.title Identification and evaluation of VOCs evolved from warm season swine mortality composts
dc.type article
dc.type.genre conference
dspace.entity.type Publication
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relation.isAuthorOfPublication 76fc5589-51f8-4f3c-885c-e25d8037d641
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