Sustainable and effective contaminants transport beyond stability barrier of supported liquid membrane: How crucial and vital is the green membrane system

Supported liquid membrane (SLM) has emerged as one of the most enticing and efficient membrane technologies for selectively extracting contaminants of emerging concern (CEC) from wastewater. Nonetheless, SLM faces several challenges regarding the chemical used, membrane instability, and low stripping, thus limiting its commercialization. Several strategies have been developed to improve current SLM towards a sustainable and green membrane system. Vegetable oil (VO), ionic liquid (IL), and deep eutectic solvent (DES) are potential green solvents capable of performing various solute extraction while maintaining membrane stability. Pseudo strip dispersion, polymeric support modification, and nanoparticles may increase membrane lifetime and recycla-bility. Stripping synergy and in-situ electrodeposition are capable of resolving the stripping process issue. Thus, the significance of this review is to highlight methods for improving SLM by achieving a greener membrane system with high extraction, stability, and recovery for wastewater treatment applications

Automated summary

Supported liquid membrane (SLM) is an efficient membrane technology for selectively extracting contaminants from wastewater. However, there are challenges in terms of chemical selection, membrane instability, and low stripping which limit its commercialization. Strategies such as using vegetable oil, ionic liquid, and deep eutectic solvent as green solvents, and employing pseudo strip dispersion, polymeric support modification, and nanoparticles, as well as stripping synergy and in-situ electrodeposition can improve the performance of SLM towards a greener and more sustainable membrane system for wastewater treatment.