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Title: A biosorption-based approach for selective extraction of rare earth elements from coal byproducts

Abstract

Coal byproducts could be a promising feedstock to alleviate the supply risk of critical rare earth elements (REEs) due to their abundance and REE content. Herein, we investigated the economic and environmental potential of producing REEs from coal fly ash and lignite through an integrated process of leaching, biosorption, and oxalic precipitation based on experimental data and modeling results. Two microbe immobilization systems (PEGDA) microbe beads and Si sol-gels) were examined for their efficiency in immobilizing Arthrobacter nicotianae to selectively recover REEs. Techno-economic analysis revealed that North Dakota lignite could be a profitable feedstock when Si sol-gel is used due to its high cell loading and REE adsorption capacity. Life cycle analysis revealed that Si sol-gel based biosorption could be more environmental friendly than the prevailing REE production in China due to use of less toxic chemicals. However, fly ash sourced from Powder River Basin coals was neither profitable or environmentally sustainable, primarily due to low solublity of high-value scandium at an economical pulp density (100 ash/L). To further improve the proposed biotechnology, future research could focus on scandium recovery, leaching efficiency, and microbe carriers.

Authors:
 [1];  [2];  [2];  [1];  [3];  [3];  [2];  [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Duke Univ., Durham, NC (United States)
  3. Univ. of North Dakota, Grand Forks, ND (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1631517
Alternate Identifier(s):
OSTI ID: 1780310
Report Number(s):
LLNL-JRNL-789319
Journal ID: ISSN 1383-5866; 987408
Grant/Contract Number:  
AC52-07NA27344; LLNL-JRNL- 789319; DEAC52-07NA27344; FWP-LLNL-18-FEW0239
Resource Type:
Accepted Manuscript
Journal Name:
Separation and Purification Technology
Additional Journal Information:
Journal Volume: 241; Journal Issue: C; Journal ID: ISSN 1383-5866
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
20 FOSSIL-FUELED POWER PLANTS

Citation Formats

Park, Dan, Middleton, Andrew, Smith, Ryan, Deblonde, Gauthier, Laudal, Dan, Theaker, Nolan, Hsu-Kim, Heileen, and Jiao, Yongqin. A biosorption-based approach for selective extraction of rare earth elements from coal byproducts. United States: N. p., 2020. Web. doi:10.1016/j.seppur.2020.116726.
Park, Dan, Middleton, Andrew, Smith, Ryan, Deblonde, Gauthier, Laudal, Dan, Theaker, Nolan, Hsu-Kim, Heileen, & Jiao, Yongqin. A biosorption-based approach for selective extraction of rare earth elements from coal byproducts. United States. https://doi.org/10.1016/j.seppur.2020.116726
Park, Dan, Middleton, Andrew, Smith, Ryan, Deblonde, Gauthier, Laudal, Dan, Theaker, Nolan, Hsu-Kim, Heileen, and Jiao, Yongqin. Sat . "A biosorption-based approach for selective extraction of rare earth elements from coal byproducts". United States. https://doi.org/10.1016/j.seppur.2020.116726. https://www.osti.gov/servlets/purl/1631517.
@article{osti_1631517,
title = {A biosorption-based approach for selective extraction of rare earth elements from coal byproducts},
author = {Park, Dan and Middleton, Andrew and Smith, Ryan and Deblonde, Gauthier and Laudal, Dan and Theaker, Nolan and Hsu-Kim, Heileen and Jiao, Yongqin},
abstractNote = {Coal byproducts could be a promising feedstock to alleviate the supply risk of critical rare earth elements (REEs) due to their abundance and REE content. Herein, we investigated the economic and environmental potential of producing REEs from coal fly ash and lignite through an integrated process of leaching, biosorption, and oxalic precipitation based on experimental data and modeling results. Two microbe immobilization systems (PEGDA) microbe beads and Si sol-gels) were examined for their efficiency in immobilizing Arthrobacter nicotianae to selectively recover REEs. Techno-economic analysis revealed that North Dakota lignite could be a profitable feedstock when Si sol-gel is used due to its high cell loading and REE adsorption capacity. Life cycle analysis revealed that Si sol-gel based biosorption could be more environmental friendly than the prevailing REE production in China due to use of less toxic chemicals. However, fly ash sourced from Powder River Basin coals was neither profitable or environmentally sustainable, primarily due to low solublity of high-value scandium at an economical pulp density (100 ash/L). To further improve the proposed biotechnology, future research could focus on scandium recovery, leaching efficiency, and microbe carriers.},
doi = {10.1016/j.seppur.2020.116726},
journal = {Separation and Purification Technology},
number = C,
volume = 241,
place = {United States},
year = {Sat Feb 15 00:00:00 EST 2020},
month = {Sat Feb 15 00:00:00 EST 2020}
}

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Cited by: 44 works
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