Solar-driven membrane separation for direct lithium extraction from artificial salt-lake brine

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Янв. 3, 2024

The demand for lithium extraction from salt-lake brines is increasing to address the supply shortage. Nanofiltration separation technology with high Mg

Язык: Английский

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Adsorbents for lithium extraction from salt lake brine with high magnesium/lithium ratio: From structure-performance relationship to industrial applications

Desalination, Год журнала: 2024, Номер 579, С. 117480 - 117480

Опубликована: Фев. 27, 2024

Язык: Английский

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Sustainable Lithium Recovery from Hypersaline Salt-Lakes by Selective Electrodialysis: Transport and Thermodynamics

Environmental Science & Technology, Год журнала: 2023, Номер 57(39), С. 14747 - 14759

Опубликована: Сен. 18, 2023

Evaporative technology for lithium mining from salt-lakes exacerbates freshwater scarcity and wetland destruction, suffers protracted production cycles. Electrodialysis (ED) offers an environmentally benign alternative continuous extraction is amenable to renewable energy usage. Salt-lake brines, however, are hypersaline multicomponent mixtures, the impact of complex brine-membrane interactions remains poorly understood. Here, we quantify influence solution composition, salinity, acidity on counterion selectivity thermodynamic efficiency electrodialysis, leveraging 1250 original measurements with salt-lake brines that span four feed salinities, three pH levels, five current densities. Our experiments reveal commonly used binary cation solutions, which neglect Na+ K+ transport, may overestimate Li+/Mg2+ by 250% underpredict specific consumption (SEC) a factor 54.8. As result conditions, exposure brine weakens efficacy Donnan exclusion, amplifying Mg2+ leakage. Higher densities enhance potential across solution-membrane interface ameliorate degradation brines. However, steep trade-off between governs ED's performance: 6.25 times enhancement in accompanied 71.6% increase SEC. Lastly, our analysis suggests industrial-scale ED module can meet existing capacities, while being powered photovoltaic farm utilizes <1% salt-flat area.

Язык: Английский

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Advances and promotion strategies of membrane-based methods for extracting lithium from brine

Desalination, Год журнала: 2023, Номер 566, С. 116891 - 116891

Опубликована: Авг. 2, 2023

Язык: Английский

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Multipass Nanofiltration for Lithium Separation with High Selectivity and Recovery

Environmental Science & Technology, Год журнала: 2023, Номер 57(38), С. 14464 - 14471

Опубликована: Сен. 14, 2023

Nanofiltration (NF) is a promising and sustainable process to extract Li+ from brine lakes with high Mg2+/Li+ mass ratios. However, trade-off between Li/Mg selectivity Li recovery exists at the scale, of commercially lab-made NF membranes in single-pass insufficient achieve industrially required purity. To overcome this challenge, we propose multipass recirculation without sacrificing recovery. We experimentally demonstrate that three-pass commercial membrane can exceed 1000, despite compromised as result co-existing cations. Our theoretical analysis further predicts four-pass simultaneously an ultrahigh over 4500 95%. This proposed could potentially facilitate efficient NF-based solute-solute separations all kinds contribute development novel membrane-based separation technologies.

Язык: Английский

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Physics-informed deep learning for multi-species membrane separations

Chemical Engineering Journal, Год журнала: 2024, Номер 485, С. 149806 - 149806

Опубликована: Фев. 17, 2024

Язык: Английский

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Nanofiltration membrane for enhancement in lithium recovery from salt-lake brine: A review

Desalination, Год журнала: 2024, Номер 591, С. 117967 - 117967

Опубликована: Авг. 6, 2024

Язык: Английский

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Strategies for lithium extraction from salt lakes by nanofiltration and selective-electrodialysis and analysis of differences between the two methods

Desalination, Год журнала: 2024, Номер 586, С. 117749 - 117749

Опубликована: Май 22, 2024

Язык: Английский

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Effect of solution ions on the charge and performance of nanofiltration membranes

npj Clean Water, Год журнала: 2024, Номер 7(1)

Опубликована: Март 30, 2024

Abstract Considering growing efforts to understand and improve the solute-specific selectivity of nanofiltration (NF) membranes, we explored ion-specific effects that govern charge performance a loose polyamide NF membrane is commonly used for solute-solute separations. Specifically, systematically evaluated zeta potential under different conditions pH, salinity, ionic composition, correlated obtained data with tested similar conditions. Our results identify p K both carboxylic amine groups bonded surface suggest highly polarizable chloride anions in solution adsorb polyamide, increasing its negative charge. We also show monovalent cations “stickiness” can neutralize extents due their varying tendency sorb polymer matrix or screen fixed carboxyl on surface. Notably, our correlation between measurements permeability experiments indicates substantial contribution ions Donnan exclusion membranes.

Язык: Английский

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Three-dimensional cationic covalent organic framework membranes for rapid and selective lithium extraction from saline water

Nature Water, Год журнала: 2025, Номер 3(2), С. 191 - 200

Опубликована: Янв. 10, 2025

Язык: Английский

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