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Progress in Stabilizing Acidic Copper Tailings At Holden Village, Washington.

Authors
McDonald-WR; Shirts-MB
Source
NTIS: PB 289 858 :15 pages
Link
NIOSHTIC No.
10007876
Abstract
The Bureau of Mines, U.S. Department of the Interior, conducted small-scale field tests on acidic copper tailings as part of its effort to develop, improve, and demonstrate technology for stabilizing mining and mineral-processing wastes. Two successful demonstration revegetation plots were established on an abandoned copper-tailings pond located on public land adjacent to Holden Village, Washington. The tailings were neutralized with treatments of either dolomitic lime or limerock and fertilized with processed sewage sludge and/or commercial fertilizer. Excellent plant growths covering 70 and 24 percent of the surface were achieved on 1/8- and 1 1/2-acre test plots planted in 1973 and 1974, respectively. Regar brome, tegmar intermediate wheatgrass, and tall wheatgrass provided the best plant growth and surface coverage. The target ph of tailings neutralization was 6.8; However, good plant growth occurred in areas where the soil ph ranged from 2.9 to 5.8.
Publication Date
19780101
Document Type
IH; Report of Investigation;
Fiscal Year
1978
NTIS Accession No.
PB-289858
NTIS Price
A03
Identifying No.
RI 8314
NIOSH Division
SLRC;
Source Name
NTIS: PB 289 858
State
WA;
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