Recovery of rare earth elements from acid mine drainage: A review of the extraction methods

Combined pyro-hydrometallurgical technology for recovering valuable metal elements from spent lithium-ion batteries: a review of recent developments

“…160 This method is more selective for metal ions than chemical precipitation and solvent extraction and is appropriate for the separation and recovery of target metal ions in smaller amounts from solutions containing large amounts of other ions. [161][162][163] This approach was utilized by Virolainen et al 164 to recover Co from spent LIB leachate. The loss of cobalt ions was only 1.1% using an aminomethylphosphonic acid chelating resin (Lewatit TP260).…”

Enhanced removal of Ce(iii) and Sr(ii) ions from aqueous solution using ultrasonication-assisted sawdust-TiO2 sorbent

“…Q e;cal (5) where Q e,exp and Q e,cal (mg g −1 ) are the experimental and calculated sorbent amount of Ce(III) and Sr(II), respectively, and n is the number of experimental data points. Low values of RMSE, SSE and X 2 indicate the best model describing practical results.…”

“…They found that the best method is the adsorption process, which is due to its unique properties in terms of reducing time and obtaining a high removal rate of metal ions and radioactive isotopes using different adsorbents. [5][6][7][8][9][10] Lately, biomass materials like coconut shell activated carbon, 11,12 sawdust, [13][14][15] activated carbon, [16][17][18][19] natural materials, 20,21 activated carbon derived from pine sawdust, 22 magnetic plastic waste-biomass char composite (MPBC), 23 activated carbon and carbon nanotubes that synthesized from biomass, [24][25][26][27][28][29] .....etc., have been used as adsorbents to isolate heavy metal ions, organics, dyes and radioactive isotopes from contaminated water. Where, these biomass materials include numerous function groups as -COOH, -OH, and CO and these groups are associated with the element through ion-exchange, van der Waals interactions, complexation or co-precipitation.…”

“…They found that the best method is the adsorption process, which is due to its unique properties in terms of reducing time and obtaining a high removal rate of metal ions and radioactive isotopes using different adsorbents. 5–10…”

Isolating the effects of gate layer permeability and sorbent density on the performance of solute-selective polymeric ion pumps

“…While there is an environmental need to treat the runoff, the dissolved species (e.g., copper, cobalt, and rare earth elements) can potentially be harvested and used. [12][13][14][15] Emerging technologies may enable the separation and purification of valuable resources from these feed streams. 8,16 However the broad range of target solutes and compositions of these waste streams emphasize the continued need for fitfor-purpose separation materials.…”