Sam Beattie
Iowa State University
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American Society of Agricultural and Biological Engineers Annual International Meeting 2008 | 2008
Neslihan Akdeniz; Jacek A. Koziel; Heekwon Ahn; Thomas D. Glanville; Benjamin P. Crawford; Patrick C. Hermiston; Nidhi Shah; D. Raj Raman; Anthony L. Pometto; Sam Beattie
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.
The Journal of Extension | 2012
Christina Perry; Julie A. Albrecht; Ruth E. Litchfield; Rebecca Meysenburg; Ida NgYin Er; Adeline Lum; Sam Beattie; Carol Larvick; Carol Schwarz; Jan Temple; Elizabeth A. Meimann
Archive | 2011
Amy Casselman; Catherine Strohbehn; Sam Beattie
Journal of The American Dietetic Association | 2009
Rebecca Meysenburg; Julie A. Albrecht; C. Perry; Ruth E. Litchfield; Sam Beattie; Carol Larvick; Carol Schwarz; J. Temple; E. Meimann
Archive | 2008
Jill Brierly; Catherine Strohbehn; Sam Beattie; Diane Nelson
Archive | 2010
Catherine Strohbehn; Sam Beattie; Neric Smith
Archive | 2010
Catherine Strohbehn; Sam Beattie; Neric Smith
Journal of Nutrition Education and Behavior | 2010
Julie A. Albrecht; Rebecca Meysenburg; Christina Perry; Ruth E. Litchfield; Sam Beattie; Carol Larvick; Carol Schwarz; Jan Temple; Elizabeth A. Meimann
Archive | 2009
Sam Beattie; Elizabeth A. Meimann; Sue Bogue; Diane Nelson
Archive | 2009
Catherine Strohbehn; Sam Beattie; Neric Smith