Great Salt Lake Composition and Rare Earth Speciation Analysis

We have conducted aqueous speciation analyses of the Great Salt Lake (GSL) brine sample (Table 1) and a mock geo sample (Table 2) spiked with 1 ppb Tb and 100 ppb Tb. The GSL speciation (Figure 1) aligns with our basic speciation expectations that strong carbonate complexes would form at mid to higher pH's. Although we expected strong aqueous complexes with fluorides at neutral pH and with chlorides, and hydroxides at low pH, we observe that the dominant species in the low to mid pH range to be Tb3+ as a free ion. Still, we do see the presence of fluoride and chloride complexes within the expected low to mid pH range.

Data and Resources

Field Value
DOI 10.15121/1452717
accessLevel public
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identifier https://data.openei.org/submissions/7130
issued 2017-04-19T06:00:00Z
landingPage https://gdr.openei.org/submissions/962
license https://creativecommons.org/licenses/by/4.0/
modified 2018-06-14T16:22:36Z
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programCode {019:006}
projectLead Holly Thomas
projectNumber LLNL FY17 AOP 2.5.1.12
projectTitle Extraction of Rare Earth Metals from Geothermal Fluids using Bioengineered Microbes
publisher Lawrence Livermore National Laboratory
resource-type Dataset
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Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • adsorption
  • aqueous
  • biosorption
  • brine
  • chemistry
  • element
  • energy
  • geothermal
  • great-salt-lake
  • gsl
  • rare-earth
  • ree
  • speciation
  • tb
  • terbium
isopen True
license_id cc-by
license_title Creative Commons Attribution
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maintainer Yongqin Jiao
maintainer_email jiao1@llnl.gov
metadata_created 2025-09-23T20:05:57.801949
metadata_modified 2025-09-23T20:05:57.801957
notes We have conducted aqueous speciation analyses of the Great Salt Lake (GSL) brine sample (Table 1) and a mock geo sample (Table 2) spiked with 1 ppb Tb and 100 ppb Tb. The GSL speciation (Figure 1) aligns with our basic speciation expectations that strong carbonate complexes would form at mid to higher pH's. Although we expected strong aqueous complexes with fluorides at neutral pH and with chlorides, and hydroxides at low pH, we observe that the dominant species in the low to mid pH range to be Tb3+ as a free ion. Still, we do see the presence of fluoride and chloride complexes within the expected low to mid pH range.
num_resources 1
num_tags 23
title Great Salt Lake Composition and Rare Earth Speciation Analysis