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Sand Bed Dewatering of Alumina Miniplant Tailings.

Authors
Rickel-RL; Barrett-PJ; Starrett-DM
Source
MISSING :10 pages
Link
NIOSHTIC No.
10006371
Abstract
The Bureau of Mines, as part of its minerals environmental technology research, conducted a study of mine waste tailings disposal. Part of the investigation evaluated the sand bed dewatering technique for disposal of alumina miniplant tailings as a means to increase consolidation rates and contain effluents. The technique employs a bed of sand resting on an impervious bottom. The tailings slurry is impounded over the sand layer and is dewatered through bottom drain piping. The study employed a single 10-ft-high, 6-in-diam, clear polyvinyl chloride (pvc) column, and thickener wastes from the acid leaching of calcined kaolin clay. Results showed a consolidation rate of 41 in in 186 days for a total volume reduction of 37 pct. Sand bed dewatering was an efficient technique for solid consolidation and effluent containment when compared with data obtained from other dewatering studies.
Publication Date
19820101
Document Type
IH; Report of Investigations
Fiscal Year
1982
Identifying No.
RI 8677
NIOSH Division
BCEL;
Source Name
MISSING
Page last reviewed: March 11, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division