Rare Earth Adsorption and Desorption with PEGDA Beads

Dataset · Wed Mar 01 04:00:00 EST 2017

DOI:https://doi.org/10.15121/1452719· OSTI ID:1452719

Jiao, Yongqin ^[1]; Brewer, Aaron; Park, Dan

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1. Lawrence Livermore National Laboratory

We synthesized PEGDA polymer hydrogel beads for cell embedding and compared REE biosorption with these beads via a gravity-driven flow through setup. One way to set up a flow through system is by cell encapsulation into polymer beads with a column setup similar to that used in the chromatography industry. To achieve this, we tested PEGDA for cell encapsulation, and tested REE biosorption under both batch mode and a follow through setup based on gravity . For making the cell embedded polymer beads, we used a fluidic device by which homogenous spherical particles of 0.5 to1 mm in diameter were synthesized. The beads are made relatively quickly, and the size of the beads can be controlled. PEGDA beads were polymerized by UV. Tb adsorption experiment was performed with beads with or without cells embedded.

• Research Organization: DOE Geothermal Data Repository; Lawrence Livermore National Laboratory
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Geothermal Technologies Program (EE-2C)
• Contributing Organization: Lawrence Livermore National Laboratory
• OSTI ID: 1452719
• Report Number(s): 966
• Availability: [e-mail]
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
LBT cells
PEG diacrylate
PEGDA
adsorption
biosorption
brine
column
desorption
energy
geothermal
great salt lake
hydrogel
lanthanide binding tag
rare earth