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Enrichment of lithium from salt lake brine by forward osmosis
Forward osmosis (FO) is a concentration process based on the natural phenomena of osmosis. It is considered a breakthrough technology that can be potentially used for concentrating solutions and suspensions. The diluted nature of brine restricts the treatment technologies that can be applied. Then,...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6227972/ https://www.ncbi.nlm.nih.gov/pubmed/30473842 http://dx.doi.org/10.1098/rsos.180965 |
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author | Li, Jinli Wang, Min Zhao, Youjing Yang, Hongjun Zhong, Yuan |
author_facet | Li, Jinli Wang, Min Zhao, Youjing Yang, Hongjun Zhong, Yuan |
author_sort | Li, Jinli |
collection | PubMed |
description | Forward osmosis (FO) is a concentration process based on the natural phenomena of osmosis. It is considered a breakthrough technology that can be potentially used for concentrating solutions and suspensions. The diluted nature of brine restricts the treatment technologies that can be applied. Then, brine concentration by FO could represent a new emerging technology enabling the application of a wider range of treatment alternatives. The performance of concentrated brine depending upon FO membranes was studied at normal temperature and pressure in this research. Cellulose triacetates on radio-frequency-weldable non-woven support (CTA-NW) and a thin-film composite with embedded polyester screen support (TFC-ES) were compared; and their orientations were considered. The brine was from Chaerhan Salt Lake after extracting potassium as the feed solution, NaCl solution or MgCl(2) solution as the draw solution. The results indicated that CTA-NW exhibited better concentration performance than TFC-ES, while the water fluxes of the two membranes were exactly the opposite. In the case of CTA-NW in active layer facing feed solution orientation with MgCl(2) as the draw solution, the concentration factor of Li(+) was nearly 3.0. Quantitative structure–activity relationship of FO membranes and concentration characteristics was correlated, based on results of SEM, FTIR and contact angles studies. The concentration performance could be mainly attributed to the porosity and the thickness of FO membranes; while the water flux was dependent on the hydrophily of FO membrane surface. |
format | Online Article Text |
id | pubmed-6227972 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | The Royal Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-62279722018-11-23 Enrichment of lithium from salt lake brine by forward osmosis Li, Jinli Wang, Min Zhao, Youjing Yang, Hongjun Zhong, Yuan R Soc Open Sci Chemistry Forward osmosis (FO) is a concentration process based on the natural phenomena of osmosis. It is considered a breakthrough technology that can be potentially used for concentrating solutions and suspensions. The diluted nature of brine restricts the treatment technologies that can be applied. Then, brine concentration by FO could represent a new emerging technology enabling the application of a wider range of treatment alternatives. The performance of concentrated brine depending upon FO membranes was studied at normal temperature and pressure in this research. Cellulose triacetates on radio-frequency-weldable non-woven support (CTA-NW) and a thin-film composite with embedded polyester screen support (TFC-ES) were compared; and their orientations were considered. The brine was from Chaerhan Salt Lake after extracting potassium as the feed solution, NaCl solution or MgCl(2) solution as the draw solution. The results indicated that CTA-NW exhibited better concentration performance than TFC-ES, while the water fluxes of the two membranes were exactly the opposite. In the case of CTA-NW in active layer facing feed solution orientation with MgCl(2) as the draw solution, the concentration factor of Li(+) was nearly 3.0. Quantitative structure–activity relationship of FO membranes and concentration characteristics was correlated, based on results of SEM, FTIR and contact angles studies. The concentration performance could be mainly attributed to the porosity and the thickness of FO membranes; while the water flux was dependent on the hydrophily of FO membrane surface. The Royal Society 2018-10-03 /pmc/articles/PMC6227972/ /pubmed/30473842 http://dx.doi.org/10.1098/rsos.180965 Text en © 2018 The Authors. http://creativecommons.org/licenses/by/4.0/ Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. |
spellingShingle | Chemistry Li, Jinli Wang, Min Zhao, Youjing Yang, Hongjun Zhong, Yuan Enrichment of lithium from salt lake brine by forward osmosis |
title | Enrichment of lithium from salt lake brine by forward osmosis |
title_full | Enrichment of lithium from salt lake brine by forward osmosis |
title_fullStr | Enrichment of lithium from salt lake brine by forward osmosis |
title_full_unstemmed | Enrichment of lithium from salt lake brine by forward osmosis |
title_short | Enrichment of lithium from salt lake brine by forward osmosis |
title_sort | enrichment of lithium from salt lake brine by forward osmosis |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6227972/ https://www.ncbi.nlm.nih.gov/pubmed/30473842 http://dx.doi.org/10.1098/rsos.180965 |
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