Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Treatment of fluvially deposited streamside mine waste - material from Nine Mile Creek, Idaho.

Authors
Paulson-AJ; Balderrama-R; Zahl-E; Cox-RL
Source
NIOSH 1995 Jul; :1-68
Link
NIOSHTIC No.
20000775
Abstract
The size separation of flood plain material contaminated with mine waste was tested to determine if the interaction of water flow with geochemical processes could be changed sufficiently to reduce release rates of metals in a manner that would allow on-site disposal of all material as the sole remediation action. The initial release of metals from the gravel fraction seemed to be controlled by adhered fines, even though the wet-separation process removed more of this finer material. In ancillary separation tests, aggressive water treatment of the coarser fraction was required to limit initial metal release. This treatment involved thoroughly removing the finer fraction. Gravity separation of the finest fraction produced a concentrate high in lead. In contrast, conventional flotation to remove sulfide minerals was ineffective because the material had been weathered and heavily oxidized on the flood plain.
Keywords
Heavy-metals; Sulfides; Sulfates; Waste-treatment; Chemical-deposition
CAS No.
7439-92-1
Publication Date
19950701
Document Type
Report of Investigations
Fiscal Year
1995
NTIS Accession No.
PB97-120372
NTIS Price
A05
Identifying No.
RI-9631
ISSN
1066-5552
NIOSH Division
SRL; SLRC; RERC
Source Name
National Institute for Occupational Safety and Health
State
WA; UT; NV
TOP