Fractionating magnesium ion from seawater for struvite recovery using electrodialysis with monovalent selective membranes

Ye, Zhi-Long; Ghyselbrecht, Karel; Monballiu, Annick; Rottiers, Thomas; Sansen, Bert; Pinoy, Luc; Meesschaert, Boudewijn

doi:10.1016/j.chemosphere.2018.07.078

Cited by 44 publications

(20 citation statements)

References 29 publications

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“…and Zn(II) in the Cu(II)/Zn(II)-rich stream. This energy consumption value is in agreement with that reported by Ye et al (2018), who used the same membrane configuration (AEM-MVC-CEM), applying 7 V to the SED stack. In the aforementioned study, the aim of the work was to fraction magnesium ions from seawater for struvite recovery, and the energy consumption under the mentioned conditions was 5.4 kWh/kg MgCl2 [51].…”

Section: Cu(ii) and Zn(ii) Separation From As(v) By Sedsupporting

confidence: 91%

Integration of selectrodialysis and solvent-impregnated resins for Zn(II) and Cu(II) recovery from hydrometallurgy effluents containing As(V)

Reig

Vecino

Hermassi

et al. 2019

Separation and Purification Technology

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Section: Cu(ii) and Zn(ii) Separation From As(v) By Sedsupporting

confidence: 91%

Integration of selectrodialysis and solvent-impregnated resins for Zn(II) and Cu(II) recovery from hydrometallurgy effluents containing As(V)

Reig

Vecino

Hermassi

et al. 2019

Separation and Purification Technology

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“…Therefore, a balance between the cost and performance for MWRB production should be found out, depending on the remediation scenario. It should also be noted that MgCl 2 is abundant in natural resources (sea water) and industrial wastes (brine water) (Ye et al, 2018). The sustainable utilization of MgCl 2 from these sources can partly lower the costs and life-cycle carbon footprint.…”

Section: Lead Removalmentioning

confidence: 99%

Effects of excessive impregnation, magnesium content, and pyrolysis temperature on MgO-coated watermelon rind biochar and its lead removal capacity

Zhang

Hou

Shen

et al. 2020

Environmental Research

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MgO-coated watermelon rind biochar (MWRB) is a potentially highly-effective waste-derived material in environmental applications. This research aims to provide valuable insights into the optimization of the production of MWRB for superior environmental performance. It was found that the Mg content of the MWRB could be easily controlled by adjusting the Mg/feedstock mass ratio during excessive impregnation. The BET surface area was found to first increase and then decrease as the Mg content of the MWRB (produced at 600 °C) increased from 1.52% to 10.1%, with an optimal surface area of 293 m 2 /g observed at 2.51%. Similarly, an optimum pyrolysis temperature of 600°C was observed in the range of 400-800 °C for a maximum surface area of the MWRB at a fixed Mg/feedstock ratio of 0.48% (resulting in MWRBs with Mg contents of 1.89-2.51%). The Pb removal capacity of the MWRB (produced at 600°C) increased with increasing Mg content, with a greatest Pb removal capacity of 558 mg/g found for the MWRB with the highest Mg content (10.1%), an improvement of 208% over the 181 mg/g Pb removal capacity of unmodified WRB produced at 600°C. The Pb removal capacity of the MWRB (produced with 1.89-2.51% Mg) was also discovered to increase from 81.7 mg/g (at 400 °C) to 742 mg/g (at 700°C), before dropping to 368 mg/g at 800 °C. These findings suggest that the MWRB can be more efficiently utilized in soil and water remediation by optimizing its synthesis conditions.

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“…Electrodialysis (ED) is a dialysis phenomenon without phase inversion [210], in which charged ions in solution migrate through the ion exchange membrane under an applied electric field [211,212]. In the presence of an electric potential difference, cations and anions can directionally migrate through the selective ion exchange membrane with ion-selective permeability, thereby separating and concentrating ions.…”

Section: Electrodialysis Technologymentioning

confidence: 99%

Materials for lithium recovery from salt lake brine

et al. 2020

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Rapid developments in the electric industry have promoted an increasing demand for lithium resources. Lithium in salt lake brines has emerged as the main source for industrial lithium extraction, owing to its low cost and extensive reserves. The effective separation of Mg 2? and Li ? is critical to achieving high recovery efficiency and purity of the final lithium product. This paper summarizes Mg 2? /Li ? separation materials and methods in the field of lithium recovery from salt lake brines. The review begins with an introduction to the global distribution and demand for lithium resources, followed by a description of the materials used in various separation techniques, including precipitation, adsorption, solvent extraction, nanofiltration membrane, electrodialysis, and electrochemical methods. A comparison, analysis, and outlook of such methods are comprehensively discussed in terms of principles, mechanisms, synthesis/operation, development, and industrial applications. We conclude with a presentation of challenges and insights into the future directions of lithium extraction from salt lake brines. A combination of the advantages of various materials is the most logical step toward developing novel methods for extracting lithium from brines with high separation selectivity, stability, low cost, and environmentally friendly characteristics.

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Fractionating magnesium ion from seawater for struvite recovery using electrodialysis with monovalent selective membranes

Cited by 44 publications

References 29 publications

Integration of selectrodialysis and solvent-impregnated resins for Zn(II) and Cu(II) recovery from hydrometallurgy effluents containing As(V)

Integration of selectrodialysis and solvent-impregnated resins for Zn(II) and Cu(II) recovery from hydrometallurgy effluents containing As(V)

Effects of excessive impregnation, magnesium content, and pyrolysis temperature on MgO-coated watermelon rind biochar and its lead removal capacity

Materials for lithium recovery from salt lake brine

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