Sustainable organic solvent nanofiltration membranes

Various green alternatives and membrane manufacturing strategies have been introduced recently to make organic solvent nanofiltration technology more sustainable. These include the use of less toxic solvents to dissolve the polymer and polymerization process, the use of degradable and renewable polymer sources, and the reduction of solvent consumption. Since the reliability and longevity of the membrane contribute to the “greenness” of the technique, the longer a membrane can function, the greener it is in comparison to other separation techniques. All aspects of this chapter, including the monomer source, membrane fabrication, and solvent recyclability, were in accordance with sustainability and circular economy principles.