000 03346nam  2200445zi 4500
0019.880610
003CaOODSP
00520221107165823
006m     o  d f      
007cr cn|||||||||
008191015s2007    bcca    ob   f000 0 eng d
040 |aCaOODSP|beng|erda|cCaOODSP
0410 |aeng|beng|bfre
043 |an-cn-bc
0861 |aEn40-240-1/07-02E-PDF
1001 |aMayer, Karl Ulrich, |eauthor.
24510|aInterpretation of geochemical tests of Huckleberry mine waste rock : |bspeciation and reaction progress modeling of humidity cells HC-13, HC-14, and HC-1 / |cprepared for Environment Canada ; prepared by K. Ulrich Mayer.
264 1|aVancouver, BC : |bEnvironment Canada, |c1990.
300 |a1 online resource (107 pages) : |billustrations.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aRegional program report ; |v07-02
500 |a"Submitted to: Environment Canada, Environmental Stewardship Branch, Environmental Protection Operations, Pacific and Yukon."
500 |a"November 15, 2007."
500 |aDigitized edition from print [produced by Environment and Climate Change Canada].
504 |aIncludes bibliographical references (pages 19-21).
520 |a"Six humidity cell kinetic tests containing waste rock from the Huckleberry Mine in northern British Columbia have been maintained for uniquely long times of up to twelve years. The rocks under investigation have a NP/AP ratio smaller than 1; however, some of the cells are still producing circum-neutral drainage, despite the long duration of the tests. The interpretation of the test data is complicated by the presence of gypsum at significant concentrations (> 1 wt%) and the initial application of sulfuric acid leaching to remove carbonate NP. The objectives of this work are to use kinetic reaction progress modeling to assess the geochemical activity of the pyritic altered volcanic waste rock from the Huckleberry Mine as presently under test, with particular regard to humidity cells HC-13, HC-14, and HC-1. The modeling results are used as a basis to explain, as far as possible, the humidity cells' leaching behaviour related to the initial chemistry and mineralogy of the rocks. In addition, a general discussion on using reactive transport modeling to assess the geochemical evolution in full-sized mine waste rock dumps is provided"--Executive summary, page i.
530 |aIssued also in print format.
546 |aIncludes summaries in English and French.
650 0|aCopper mines and mining|xWaste disposal|xEnvironmental aspects|zBritish Columbia.
650 0|aAcid mine drainage|xEnvironmental aspects|zBritish Columbia.
650 0|aChemical kinetics|xComputer simulation.
650 6|aCuivre|xMines et extraction|xDéchets|xÉlimination|xAspect de l'environnement|zColombie-Britannique.
650 6|aExhaure acide|xAspect de l'environnement|zColombie-Britannique.
650 6|aCinétique chimique|xSimulation par ordinateur.
7101 |aCanada. |bEnvironment Canada.
830#0|aRegional program report (Canada. Environment Canada)|v07-02.|w(CaOODSP)9.881335
85640|qPDF|s1.81 MB|uhttps://publications.gc.ca/collections/collection_2019/eccc/en40-240-1/En40-240-1-07-02-eng.pdf