000	02931cam  2200409zi 4500
001	9.879410
003	CaOODSP
005	20221107165514
006	m     o  d f
007	cr bn|||||||||
008	190828s1994    onca    ob   f000 0 eng d
040	|aCaOODSP|beng|erda|cCaOODSP
086	1 |aEn13-5/94-22E-PDF
100	1 |aBlowes, David, |d1956- |eauthor.
245	10|aRemediation and prevention of low quality drainage from tailings impoundments / |cby D. Blowes, C. Ptacek, J. Jambor.
264	1|a[Ottawa] : |bEnvironment Canada, Water Science and Technology Directorate = Environnement Canada, Direction générale des sciences et de la technologie, eau, |c[1994]
300	|a1 online resource (1 volume (various pagings)) : |billustrations.
336	|atext|btxt|2rdacontent
337	|acomputer|bc|2rdamedia
338	|aonline resource|bcr|2rdacarrier
490	1 |a[NWRI contribution] ; |v94-22
500	|aCover title.
500	|aCopied directly from: D.W. Blowes and J.L. Jambor, eds., Environmental Geochemistry of Sulphide Mine-Wastes: Short Course Handbook, vol. 22 (Waterloo, Ont.: Mineralogical Association of Ontario, 1994).
500	|aDigitized edition from print [produced by Environment and Climate Change Canada].
504	|aIncludes bibliographical references.
520	|a"Mill tailings are the finely ground residue formed as a byproduct of ore processing. These tailings often contain high concentrations of sulfide minerals that are not economical to extract. It is conventional practice to dispose of sulfide-rich tailings in piles or impoundments in the open environment, where they are allowed to gravity drain and become exposed to atmospheric oxygen. Oxidation of the sulfide minerals contained in the tailings releases elevated concentrations of dissolved H⁺, SO₄, Fe and other metals to the tailings pore water. This pore water is displaced downward and laterally through underlying tailings and nearby aquifers, and eventually is discharged to the surface water flow system. Case studies describing the application of various remediation techniques, both in situ and above ground, for treating low-quality drainage are presented in this handbook chapter. Alternative disposal techniques designed to prevent the formation of low-quality drainage are also summarized"--Management perspective.
692	07|2gccst|aMining industry
692	07|2gccst|aWaste management
692	07|2gccst|aDrainage
700	1 |aPtacek, Carol Jane, |d1959- |eauthor.
700	1 |aJambor, J. L., |eauthor.
710	1 |aCanada. |bEnvironment Canada.
710	1 |aCanada. |bWater Science and Technology Directorate.
710	2 |aNational Water Research Institute (Canada)
830	#0|aNWRI contribution ;|v94-22.|w(CaOODSP)9.844121
856	40|qPDF|s1.83 MB|uhttps://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-94-22-eng.pdf