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Column leach study III: effects of sampling location, sampling methods, and chemical abatement treatments on the dissolution of metals in gold-copper tailings.

Public Domain


Details

  • Personal Author:
    Doepker RD
  • Description:
    Metal dissolution from tailings collected at a gold-copper mine mill site was examined by researchers from the U.S. Bureau of Mines using column leaching procedures and on-site field monitoring wells. The 3-year laboratory study reviewed effects of column waste depths, dry cycles, waste-sampling locations, and metal dissolution abatement techniques. Results of the laboratory testing indicated that the concentrations of metals in the leachate gradually decreased with each leaching and that metal release from unsaturated tailings was enhanced in most, but not all, samples. Sulfide-rich tailings produced leachates with a ph in the range of 2 to 4, sulfate concentrations as high as 40,000 mg/l, and copper concentrations in the range of 0.2 to 2,400 mg/l. The effects of abatement treatments using phosphate, lime, and sodium lauryl sulfate were also examined, but the treatments were demonstrated to be of only marginal value. The interactions between tailings and wood chips and between tailings and a compost-peat moss mixture were also studied. [Description provided by NIOSH]
  • Subjects:
  • Series:
    Mining Publications
  • Document Type:
    Text
  • Genre:
    Journal Article
  • Place as Subject:
  • CIO:
    National Institute for Occupational Safety and Health (NIOSH)
  • Division:
    SRC - Spokane Research Center
  • Topic:
    Workplace Safety & Health
  • Location:
    North America
  • Pages in Document:
    343-367
  • NIOSHTIC Number:
    nn:10011738
  • Citation:
    Reclamation 2000 :343-367
  • Federal Fiscal Year:
    2000
  • Peer Reviewed:
    False
  • Source Full Name:
    Reclamation 2000, Am. Soc. Surface Min. and Reclam., 1991, PP. 343-367
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:7dc847c09aedf140bc731323e8446b4703641ae07d6ad9e7b7238120dab30b8f7dcaa9b938d34d035f87873a0fe7fec262d5d13dcaf290925445e82b6de3b57d
  • Download URL:
  • File Type:
    Filetype[PDF - 168.02 KB ]
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