00000nam 2200000zi 4500 9.880792 CaOODSP 20241203113652 m o d f cr bn||||||||| 191018s1984 ykcab ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-yk En40-240/84-15E-PDF Davidge, Doug, author. Oxidation of Yukon mine tailings / by Doug Davidge. [Whitehorse, Yukon Territory] : Department of Environment, Environmental Protection Service, Pacific Region, Yukon Branch, 1984. 1 online resource (v, 39 pages) : illustrations, map. text txt rdacontent computer c rdamedia online resource cr rdacarrier Regional program report ; 84-15 "May 1984." Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (page 21). "During 1982 the Environmental Protection Service conducted a lab experiment to; 1) determine the oxidation potential of mine tailings from several abandoned mines in the Yukon, and 2) to determine in the iron-oxidizing bacteria, Thiobacillus ferrooxidans, was present and if it was contributing to the oxidation process. A fresh sample of tailings from Cyprus Anvil Mining Corporation was used as a reference because of its well known oxidation potential. Though all four abandoned mines tested were theoretical acid produces only two mines showed oxidation potential. The results, overall, suggest that T. ferrooxidans is present at each mine location but is not necessarily active. Tailings at two mines showing no oxidation potential possess acid consuming ability which is probably the prime factor inhibiting bacterial activity. The study showed this small scale experiment is useful in determining oxidation potential of mine tailings and also indicated the need for further assessment of the oxidation potential of the Wellgreen nickel mine and the Arctic mine"--Abstract, page i. Issued also in print format. Includes abstracts in English and French. gccst Mining industry gccst Waste gccst Bacteria Canada. Environment Canada. Canada. Environmental Protection Service. Pacific Region. Yukon Branch. Regional program report (Canada. Environmental Protection Service. Pacific Region) 84-15. (CaOODSP)9.879151 PDF 1.23 MB https://publications.gc.ca/collections/collection_2019/eccc/en40-240/En40-240-84-15-eng.pdf