Extraction of strontium ion from sea water by contained liquid membrane permeator |
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Authors: | Suk-Ki?Jeong Email author" target="_blank">Chang-Sik?JuEmail author |
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Affiliation: | (1) Department of Chemical Engineering, Pukyong National University, 608-739 Busan, Korea |
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Abstract: | To develop a liquid membrane permeator that extracts strontium ion from sea water effectively and continuously, we investigated
the extraction of strontium ion from artificial and natural sea water in a contained liquid membrane permeator. The permeator
consists of a liquid membrane and two cells for aqueous solutions. The liquid membrane containing D2EHPA(di-2-ethylhexyl-phosphoric acid) and DCH18C6(dicyclohexano-18-crown-6) is trapped between two hydrophobic microporous
polyethylene films and separates sea water and the 0.2 M H2SO4 aqueous stripping solution. The effects of various operating parameters on the extraction of strontium ion were experimentally
examined. The extractant of DCH18C6 -D2EHPA mixture in kerosene had a synergistic effect on the extraction of strontium ion. The permeator extracted strontium ion
from sea water effectively and continuously with long membrane lifetime. |
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Keywords: | Contained Liquid Membrane Strontium Ion Sea Water |
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