Three engineering control measures were developed and tested for effectiveness in protecting swine barn workers from exposure to hydrogen sulfide (H2S) gas during manure handling. A remote manure pit plug pulling system allowed the worker to pull the manure pit plug from outside the room, thereby significantly reducing risk of worker exposure to H2S. A water sprinkling apparatus was also devised, which resulted in 79% reduction of H2S gas concentration under optimal laboratory conditions. However, the use of a similar system on agitated manure showed the opposite effect. A manure scraper system was installed to remove manure daily from the manure pit of a grower-finisher room. Preliminary measurements showed that H2S levels were 80 to 96% lower in the scraper room than in a similar room with a conventional pull-plug system. However higher ammonia emissions were observed in the scraper room compared to the conventional grower-finisher room.<\/p>\n","protected":false},"excerpt":{"rendered":"
Three engineering control measures were developed and tested for effectiveness in protecting swine barn workers from exposure to hydrogen sulfide (H2S) gas during manure handling. A remote manure pit plug pulling system allowed the worker to pull the manure pit plug from outside the room, thereby significantly reducing risk of worker exposure to H2S. A […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[8882,229,2632,1060,413,1972,479,313,314,2917,12117,1066,316,20007,1067,213,112,2694,283,2345,169,320,6004,18842,14784,7545,15459,1734,16262,4940,219,2365,4921,706,2581,3710,4599,2697,35,871,474,20911,1579,6053,69,2481,7812],"class_list":["post-2859","post","type-post","status-publish","format-standard","hentry","category-environment","tag-al","tag-ammonia","tag-ammonia-emissions","tag-barn","tag-concentrations","tag-condition","tag-design","tag-emission","tag-emissions","tag-engineering","tag-engineering-controls-to-reduce-hydrogensulphide-exposure-of-workers-in-swine-buildings","tag-finisher","tag-gas","tag-gh","tag-grower","tag-h2s","tag-handling","tag-hydrogen","tag-hydrogen-sulfide","tag-improvement","tag-manure","tag-manure-handling","tag-manure-pit","tag-manure-scraper","tag-ness","tag-optimal","tag-ped","tag-pit","tag-pl","tag-plug","tag-reduction","tag-risk","tag-scraper","tag-smell","tag-spray","tag-sprinkler","tag-stall","tag-sulfide","tag-swine","tag-swine-building","tag-swine-buildings","tag-t","tag-test","tag-use","tag-water","tag-work","tag-worker"],"_links":{"self":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts\/2859","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/comments?post=2859"}],"version-history":[{"count":0,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts\/2859\/revisions"}],"wp:attachment":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/media?parent=2859"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/categories?post=2859"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/tags?post=2859"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}