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Application of nanofiltration for Rare Earth Elements recovery from coal fly ash leachate: Performance and cost evaluation

Publication ,  Journal Article
Kose Mutlu, B; Cantoni, B; Turolla, A; Antonelli, M; Hsu-Kim, H; Wiesner, MR
Published in: Chemical Engineering Journal
October 1, 2018

This work evaluated nanofiltration (NF) as a potential step in the recovery process of Rare Earth Elements (REEs) from leachates of coal combustion fly ashes. A pre-treatment step, by pH adjustment and microfiltration (MF), has been studied to separate REEs by major elements. The individual and combined effects of applied pressure (12-24 bar) and NF feed acidity (pH 1.5-3.5) on rejection of six critical REEs and permeate flux have been investigated via response surface methodology (RSM). The resulting model equations were used to develop a cost model for the recovery chain, in order to select the optimum NF operating conditions. The optimization of the REE recovery chain, including pre-treatment and NF, was done with respect to the objective of maximizing the difference between NF concentrate economic value and treatment cost. NF with an appropriate MF pre-treatment has been effective in concentrating REEs from fly ash leachate, reaching the maximum potential gain at the optimum operating conditions of 12 bar and pH 3.5.

Duke Scholars

Published In

Chemical Engineering Journal

DOI

ISSN

1385-8947

Publication Date

October 1, 2018

Volume

349

Start / End Page

309 / 317

Related Subject Headings

  • Chemical Engineering
  • 4016 Materials engineering
  • 4011 Environmental engineering
  • 4004 Chemical engineering
  • 0907 Environmental Engineering
  • 0905 Civil Engineering
  • 0904 Chemical Engineering
 

Citation

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Kose Mutlu, B., Cantoni, B., Turolla, A., Antonelli, M., Hsu-Kim, H., & Wiesner, M. R. (2018). Application of nanofiltration for Rare Earth Elements recovery from coal fly ash leachate: Performance and cost evaluation. Chemical Engineering Journal, 349, 309–317. https://doi.org/10.1016/j.cej.2018.05.080
Kose Mutlu, B., B. Cantoni, A. Turolla, M. Antonelli, H. Hsu-Kim, and M. R. Wiesner. “Application of nanofiltration for Rare Earth Elements recovery from coal fly ash leachate: Performance and cost evaluation.” Chemical Engineering Journal 349 (October 1, 2018): 309–17. https://doi.org/10.1016/j.cej.2018.05.080.
Kose Mutlu B, Cantoni B, Turolla A, Antonelli M, Hsu-Kim H, Wiesner MR. Application of nanofiltration for Rare Earth Elements recovery from coal fly ash leachate: Performance and cost evaluation. Chemical Engineering Journal. 2018 Oct 1;349:309–17.
Kose Mutlu, B., et al. “Application of nanofiltration for Rare Earth Elements recovery from coal fly ash leachate: Performance and cost evaluation.” Chemical Engineering Journal, vol. 349, Oct. 2018, pp. 309–17. Scopus, doi:10.1016/j.cej.2018.05.080.
Kose Mutlu B, Cantoni B, Turolla A, Antonelli M, Hsu-Kim H, Wiesner MR. Application of nanofiltration for Rare Earth Elements recovery from coal fly ash leachate: Performance and cost evaluation. Chemical Engineering Journal. 2018 Oct 1;349:309–317.
Journal cover image

Published In

Chemical Engineering Journal

DOI

ISSN

1385-8947

Publication Date

October 1, 2018

Volume

349

Start / End Page

309 / 317

Related Subject Headings

  • Chemical Engineering
  • 4016 Materials engineering
  • 4011 Environmental engineering
  • 4004 Chemical engineering
  • 0907 Environmental Engineering
  • 0905 Civil Engineering
  • 0904 Chemical Engineering