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- W4285585324 endingPage "115666" @default.
- W4285585324 startingPage "115666" @default.
- W4285585324 abstract "Hazardous ions, like those of heavy metals, cause significant health and environmental problems when they are discharged into water resources naturally or through various industrial processes. Removing these ions from water is of significant importance in the provision of high-quality water for drinking and agricultural usage. This work discusses current techniques that are frequently used for the removal of heavy-metal ions from aqueous solutions by absorption, particularly the use of biodegradable surfactants in ion flotation. Certain new surfactants promise high efficiency in their use in the ion-flotation process and in their application in industrial-water treatment to remove heavy metals. As an example, this work demonstrates the high efficiency of surfactants based on an amino-acid (L-cysteine) in removing a range of heavy-metal ions in a simple, single-stage ion-flotation process. High foaming ability, the ability to operate in various temperatures and pHs, decomposing into natural products and high binding affinity for heavy-metal ions make the cysteine-based surfactants a highly suitable compound to replace current commercial surfactants in ion- and froth-flotation processes. Removal of particular ions can also be achieved in ion flotation; a suitable choice of parameters, such as pH and surfactant concentration, favours the surfactant binding to those ions. Further intensive work is required to develop an optimal process to recover valuable elements from waste solutions." @default.
- W4285585324 created "2022-07-16" @default.
- W4285585324 creator A5004419436 @default.
- W4285585324 creator A5017579275 @default.
- W4285585324 date "2022-10-01" @default.
- W4285585324 modified "2023-10-01" @default.
- W4285585324 title "Removal of hazardous ions from aqueous solutions: Current methods, with a focus on green ion flotation" @default.
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