2026-09-24T01:20:36Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/45619 2023-07-11 col_2142_14847 col_2142_5131 com_2142_683 com_2142_397 com_2142_5130

Gates, Richard S. Turner, Gilbert 2013-08-22T16:55:38Z 2013-08-22T16:55:38Z 2015-08-22T10:00:54Z 2013-08 2013-08-22T16:55:38Z 2013-08 Foam production in deep-pit swine manure storages has become a significant problem for the swine industry in recent years. Foaming creates management and safety issues for swine producers, including increased risk of flash fires or explosions and reduced manure storage capacity. Due to these concerns, a means of quickly and safely mitigating foam produced in these facilities was sought. The objective of this study was to assess the efficacy of a purpose-built mechanical foam mitigation device to destroy foam in foaming swine deep-pit manure storages and to evaluate the difference, if any, of continuous versus episodic device operation and device installation location. A swine production facility in central Illinois, with a history of extensive foam production, was selected to evaluate the mechanical foam mitigation device. The device was tested in three barns and various foam depths for both continuous and episodic operation. Results show that the device was capable of destroying foam at rates ranging from 3% to 6% of initial foam volume destroyed per hour. Although operating the device episodically produced superior results in terms of foam destruction rate in foam depths greater than 0.2 m when the device was installed in a pump-out port, the improvement did not offset the time the device was inactive. Therefore, it is recommended that the device be operated continuously. When installed in a pump-out port and operated continuously, the device was capable of mitigating foam over a radial distance of at least 21 m. Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2013-07-19T13:43:55Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 Turner_Gilbert.pdf: 1844544 bytes, checksum: cd05d6d07fa72b4c90a784280902fc4c (MD5) Made available in DSpace on 2013-08-22T16:55:38Z (GMT). No. of bitstreams: 2 Gilbert_Turner.pdf: 1844544 bytes, checksum: cd05d6d07fa72b4c90a784280902fc4c (MD5) license.txt: 4064 bytes, checksum: 1f10ff7432eb2bbd60e4d0e6a9440a25 (MD5) Restriction data tranferred 2014-07-01T11:31:01-05:00 Original Data Group with Access Administrator Release Date: 2015-08-22 11:57:26 UTC Reason: Author requested closed access (OA after 2yrs) in Vireo ETD system Item marked as restricted to the 'Administrator' Group (id=1) by Seth Robbins (srobbins@illinois.edu) on 2013-08-22T16:57:31Z Item is restricted until 2015-08-22T16:57:26Z Limited Restriction Lifted for Item 45601 on 2015-08-22T10:00:54Z. http://hdl.handle.net/2142/45619 en Copyright 2013 Gilbert Turner Deep-pit Foam Control Foaming Manure Swine Evaluation of a mechanical foam mitigation device text Agricultural & Biological Engr 1741 Technical Systems Management 0025 University of Illinois at Urbana-Champaign Thesis M.S. MS: Tech Sys Mgmt - UIUC 10KS0025MS