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Reactivity studies during drying and relocation of lead-zinc-gold tailings. Phase 1: preliminary evaluation and laboratory testing.

Authors
Froisland-LJ; Lynn-PB
Source
Salt Lake City, UT: U.S. Department of the Interior, Bureau of Mines, RI 9597, 1995 Jan; :1-72
Link
NIOSHTIC No.
10005516
Abstract
The U.S. Bureau of Reclamation requested U.S. Bureau of Mines (USBM) assistance in developing design data for moving lead-zinc-gold tailings from their current location without disrupting the existing chemically stable conditions. This report presents results of USBM work in determining (1) the minimum required time to air dry the tailings to approximately 20 pct moisture under various drying conditions both in the laboratory and in the field, (2) the degree of oxidation or reduction that occurs during drying, (3) the effect of lime or cement addition before drying, and (4) the likely equilibrium conditions of the dried tailings after deposition at the new location. The limited number of tests performed by the USBM in the available time frame established trends in oxidation levels but did not provide absolute statistical validity of data values. All data from drying and oxidation testing are included in appendices to this report.
Keywords
Drying; Oxidation; Reduction-Chemistry; Moisture-content; Leachate; Sampling; Reactivity; Chemical-equilibrium; Lime; Cements; Tailings; Waste-transportation; Chemical-stabilization
Publication Date
19950101
Document Type
Report of Investigations
Fiscal Year
1995
NTIS Accession No.
PB96-131941
NTIS Price
A05
Identifying No.
RI-9597
NIOSH Division
SLRC
Source Name
Salt Lake City, UT: U.S. Department of the Interior, Bureau of Mines, RI 9597
State
UT
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