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Pilot-scale demonstration of an electrochemical system for lithium recovery from the desalination concentrate

Abstract

The rapidly growing interest in seawater desalination has drawn a large pool of attention among the industry for proper management of its by-product; desalination concentrate. Among the various attempts to utilize desalination concentrate, the selective extraction of lithium has received considerable attention as the industrial demand for lithium becomes higher than ever. In this study, using lithium-ion battery electrode materials that enable highly selective electrochemical capture and release of lithium, we report a pilot-scale system designed for the treatment of actual desalination concentrate produced by a desalination plant. This system, equipped with λ-MnO2 and Ag electrodes, enabled lithium recovery from 6 tons of desalination concentrate per day (0.25 ton per hour), leading the production of a solution containing 62 mM of Li+ with purity and enrichment factor of 88% and 1800, respectively.

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Publication details

The article was received on 31 Aug 2019, accepted on 02 Oct 2019 and first published on 03 Oct 2019


Article type: Communication
DOI: 10.1039/C9EW00756C
Environ. Sci.: Water Res. Technol., 2019, Accepted Manuscript

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    Pilot-scale demonstration of an electrochemical system for lithium recovery from the desalination concentrate

    H. Joo, S. Kim, S. Kim, M. Choi, S. Kim and J. Yoon, Environ. Sci.: Water Res. Technol., 2019, Accepted Manuscript , DOI: 10.1039/C9EW00756C

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