Identification and evaluation of VOCs evolved from warm season swine mortality composts Glanville, Thomas Raman, D. Raj Ahn, Heekwon Glanville, Thomas Crawford, Benjamin Hermiston, Patrick Koziel, Jacek Raman, D. Raj Pometto, Anthony Beattie, Sam
dc.contributor.department Agricultural and Biosystems Engineering 2018-02-13T03:44:58.000 2020-06-29T22:35:02Z 2020-06-29T22:35:02Z Tue Jan 01 00:00:00 UTC 2008 2012-12-07 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="" target="_blank">085047</a>.</p>
dc.identifier archive/
dc.identifier.articleid 1053
dc.identifier.contextkey 3522302
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_conf/52
dc.language.iso en
dc.source.bitstream archive/|||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
relation.isAuthorOfPublication a5f12b36-10ea-4059-ac84-5008540124b9
relation.isAuthorOfPublication 0d20027b-c384-4033-aafe-d7cf62e10240
relation.isAuthorOfPublication 76fc5589-51f8-4f3c-885c-e25d8037d641
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
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