ADVANCE SEPARATION PROCESS
ABSTRACT
The separation of mixtures using semi-permeable membrane has been the subject of continuing interest in the last few decades. Although separation process using membrane have been used for long time, it is only recently that significant research in this field has led to important developments, one such development is the liquid emulsion membrane. It is effective for extraction of hydrocarbons and bio-substance from dilute aqueous solution. Liquid membrane possess a number of advantages for use in industrial separations include versatility a great variety of separations can be achieved non dependence on equilibrium considerations substances can be extracted against large concentration gradients and relative low cost compared to other membrane systems. Since our last reviews, a number of new developments have been reported in the areas of wastewater cleanup, hydrometallurgy and well control fluids and the use of liquid membranes as chemical “reactors”.
The emulsion liquid membrane separation technique is applied for extraction of metal ions for e.g. enrichment of nickel and removal of toxins from blood in case of lever failure.
Many kinds of industries such as textile industries, polymer industries and diverse fields such as biomedical engineering are making use of separation techniques.
Keywords: Membrane separation; current research; liquid emulsion membrane.
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