Rare Earth Element Biomining from the Great Salt Lake Brine Using Engineered E. Coli

Abstract

This data describes rare earth element adsorption onto E. coli cells engineered to express a lanthanide binding tag (LBT). We used a Great Salt Lake synthetic solution as the background matrix with Tb added to 1-10,000 ppb, concentrations much lower than the competing ions present. Our results showed that Tb binds to LBT, even in the presence of high concentrations of competing metals. We also tested REE adsorption at elevated temperatures (up to 100 degrees Celsius), and observed that Tb adsorption increases with temperature of to 70 degrees Celsius, and then remains constant until 100 degrees Celsius. Data analyses were performed using an ICP-MS at UCSC.

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Additional Info

DOE Project Name: Extraction of Rare Earth Metals from Geothermal Fluids using Bioengineered Microbes
DOE Project Number: LLNL FY17 AOP 2.5.1.12
DOE Project Lead: Arlene Anderson
DOI: 10.15121/1377900
Last Updated: over a year ago
Jun
2017
Data from June, 2017
Submitted Aug 8, 2017

Contact

Lawrence Livermore National Laboratory


925.422.4482

Status

Publicly accessible License 

Authors

Yongqin Jiao
Lawrence Livermore National Laboratory
Dan Park
Lawrence Livermore National Laboratory
Aaron Brewer
Lawrence Livermore National Laboratory

Keywords

geothermal, energy, Rare earth element, adsorption, geofluid, REE, brine, biomining, e. coli, great salt lake, brine study

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