Research Article
May 1975
Feedlot Wastes to Useful Energy—Fact or Fiction?
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VIEW THE REPLYPublication: Journal of the Environmental Engineering Division
Volume 101, Issue 5
Abstract
The large quantities of wastes generated in commercial feedlots have been receiving attention as to their possible energy value. Research has indicated however that on the typical open lot much of the potential energy source is reduced by the natural degradation of the organic matter during the up to 150 days that the material may remain on the lot. Anaerobic digestion was studied as the system for energy recovery. Three case studies for a 35,000-head feedlot were looked at: a dirt lot, a concrete lot, and a total confinement system with fresh manure removal. Anaerobic digestion of dirt lot waste will produce no net gas. Anaerobic digestion of freshly collected wastes may produce excess gas at a cost nearly that of existing natural gas prices. Even at this price it must be approached with caution since other considerations such as cost and energy requirements of confined feeding and sludge disposal must still be considered for each installation.
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Published In
Journal of the Environmental Engineering Division
Volume 101 • Issue 5 • May 1975
Pages: 787 - 793
Copyright
© 1975 American Society of Civil Engineers.
History
Published in print: May 1975
Published online: Feb 11, 2021
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Authors
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Lawrence A. Schmid, M.ASCE
Assoc. Prof. of Civ. Engrg., Kansas State Univ., Manhattan, Kans.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.