| Summary: | Stepping into a green paradigm transition era, research works that promote sustainable development while still respecting the general environmental concerns are of great interest to many researchers. This, among other factors, has inspired and driven the research works into the feasibility of replacing the conventional petroleum-based organic solvents with the vegetable oil-based ones as the membrane phase of liquid membrane in wastewater treatment. Confirming the assertion, this paper presents an overview of liquid membrane technology, the conventional petroleum-based organic solvents used as its membrane phase and application of vegetable oil as organic solvent for wastewater treatment in liquid membrane processes. The viability of vegetable oil as organic solvent for wastewater treatment in liquid membrane processes is evaluated and waste vegetable oil as a more sustainable organic solvent is highlighted. © 2013 © 2013 Balaban Desalination Publications. All rights reserved.
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