00000nam 2200000za 4500 9.866076 CaOODSP 20241203113644 cr ||||||||||| 181214s2001 onc #ot f|0| 0 eng d CaOODSP eng eng fre n-cn--- En13-5/01-206E-PDF Transport of metals from mine tailings impoundments and release to surface waters [electronic resource] / C. J. Ptacek ... [et al.]. Burlington, Ont. : Environment Canada, [2001] 17 p. : figures. NWRI contribution ; no. 01-206 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographic references. "Sulfide-rich mine wastes, when exposed to the atmosphere, will oxidize and release acid and metals to the environment. The release can take place over several decades to many centuries. The timing and duration of peak discharges vary from site to site, depending on the rate and extent of sulfide oxidation, acid neutralization, metal attenuation and release reactions, the groundwater velocity and length of the groundwater flow path. Many oxyanion forming elements such as arsenic, behave quite differently than cation-forming metals, because of their higher mobility under near neutral pH conditions. Field investigations were carried out at mine sites covering a range in age and mineralogy"--Abstract. Text in English, abstracts in English and French. gccst Mining industry gccst Water management Ptacek, Carol Jane, 1959- Canada. Environment Canada. National Water Research Institute (Canada) NWRI contribution ; no. 01-206. (CaOODSP)9.844121 PDF 1.55 MB https://publications.gc.ca/collections/collection_2018/eccc/en13-5/En13-5-1-206-eng.pdf