000 02777cam  2200421zi 4500
0019.874368
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008190606s1995    onca    ob   f000 0 eng d
040 |aCaOODSP|beng|erda|cCaOODSP
043 |an-cn-on
0861 |aEn13-5/95-10E-PDF
1001 |aBlowes, David, |d1956- |eauthor.
24510|aIn situ treatment of mine drainage water using porous reactive walls / |cby D. Blowes, C. Ptacek, K. Waybrant, J. Bain, W. Robertson.
264 1|a[Ottawa] : |bEnvironment Canada, Water Science and Technology Directorate = Environnement canada, Direction générale des sciences et de la technologie, eau, |c[1995]
300 |a1 online resource (8 unnumbered pages) : |billustrations.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aNWRI contribution ; |v95-10
500 |aCover title.
500 |a"In: The "New Economy" Green Needs and Opportunities, Environment and Energy Conference of Ontario, November 15 & 16, 1994, Toronto, Ontario."
500 |aDigitized edition from print [produced by Environment and Climate Change Canada].
504 |aIncludes bibliographical references.
520 |a"Porous reactive walls installed in the path of plumes of tailings-derived groundwater have the potential to prevent and remediate acid mine drainage and dissolved metal release. Various forms of organic carbon were added to a reactive wall located in an aquifer downgradient from a mine-tailings impoundment at the Nickel Rim mine site, Sudbury, Ontario. Bacterially catalyzed sulphate reduction and metal sulphide precipitation reactions decreased SO₄ concentrations from 3500 to 7 mg/L and Fe concentrations from 1000 to <5 mg/L, and increased pH and alkalinity. These results indicate that sulphate-reducing reactive walls represent an effective and economically viable alternative solution to many acid mine drainage problems. Laboratory tests indicate treatment of other metals, Pb, Zn, Cu, Cd, and Ni is possible using this technology."
7001 |aPtacek, Carol Jane, |d1959- |eauthor.
7001 |aWaybrant, K. R., |eauthor.
7001 |aBain, J. G. |q(Jeffrey G.)|eauthor.
7001 |aRobertson, William Dean, |d1953- |eauthor.
7101 |aCanada. |bEnvironment Canada.
7101 |aCanada. |bWater Science and Technology Directorate.
7102 |aWaterloo Centre for Groundwater Research‏.
7102 |aNational Water Research Institute (Canada)
830#0|aNWRI contribution ;|v95-10.|w(CaOODSP)9.844121
85640|qPDF|s1.45 MB|uhttps://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-95-10-eng.pdf