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Recovery of heavy metals from high salinity geothermal brine.

Authors
Farley-EP; Watson-EL; MacDonald-DD; et. al.
Source
NTIS: PB 81-222218, 1980; :1-130
Link
NIOSHTIC No.
10006770
Abstract
Large quantities of high salinity geothermal brine from the Salton Sea Geothermal Area, California, contain significant amount of PB, ZN, FE, and MN. A simple method of treating large volumes of spent brine is required to economically recover the valuable nonferrous metals. Results from a 2-year laboratory investigation of sulfide precipitation are discussed, including the condition for achieving maximum precipitation of the valuable heavy metals while minimizing precipitation of FE and MN, which have little economic value. In the first year, the study was initiated and guided by computer thermodynamic modeling. The second year has been devoted to the operation and optimization of the sulfidation process at a continuous bench scale.
Keywords
Mining-industry; Geology; Geophysics; Thermal-properties; Lead-compounds; Zinc-compounds; Iron-compounds; Manganese-compounds; Sea-water; Nonferrous-metals; Thermodynamics; Heavy-metals
CAS No.
7439-92-1; 7440-66-6; 7439-89-6; 7439-96-5
Publication Date
19800101
Document Type
CP; Final Contract Report
Funding Type
Contract
Fiscal Year
1980
NTIS Accession No.
PB81-222218
NTIS Price
A08
Identifying No.
OFR 91-81
NIOSH Division
RERC
Source Name
NTIS: PB 81-222218
State
CA
Performing Organization
SRI International, Menlo Park, California
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