Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
권호 표지

Separation of $Sr^{2+}$ Ion from Seawater by Liquid Membrane Permeator with Two Micro-Porous Films

지지막을 이용한 액막 추출기에 의한 합성해수 중의 $Sr^{2+}$ 이온 분리

  • Published : 2000.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

Separation of strontium ion from synthetic seawater in the contained liquid membrane permeator with two micro-porous films was performed. The permeator consisted of a liquid membrane and two cells for aqueous solutions. The liquid membrane consisted of $D_2EHPA(di-2-ethylhexy1-phosphoric acid)$ and DCH18C6 (dicyclohexano-18-crown-6),diluted to 30 vol% with kerosine and was trapped between two micro-porous hydrophilic films. This liquid membrane separated two aqueous solutions, one of which was synthetic seawater and the other of which was the stripping solutions consisting of 1mol/L $H_2SO_4$ solution. The effects of various operating parameters on the extraction rate and equilibrium extraction ratio of strontium ion from synthetic seawater were experimentally examined. The addition of DCH18C6 to the $D_2EHPA$ solution caused synergy effect on the extraction of strontium ion. The permeator extracted strontium ion from synthetic seawater effectively with high membrane life time.

Keywords

References

  1. Encyclopedia of Chemical Technology v.16 Kirk-Othmer
  2. Sea Water, It's property and Technology 日本海水學會
  3. Multicomponent Diffusion Cussler,E.L.
  4. Ind. Eng. Chem. Process v.10 Separation of hydrocarbons by liquid membrane permeation Li,N.N.
  5. hydromotallurgy v.20 Indium recovery from sulphuric solutions by supported liquid membranes Guerriero,R.;L.Meregalli
  6. AIChE J. v.40 no.7 Heavy metal removal and recovery by contained liquid membrane permeator Guha,A.K.;C.H.Yun;R.Basu;K.K.Sirkar
  7. AIChE J. v.34 no.10 Separation of solutes from aqueous solutions by contained liquid membranes Sengupta,A.;R.Base;K.K.Sirkar
  8. HWAHAK KONGHAK v.81 no.1 지지막을 이용하는 회분 액막 추출기에 의한 수요액 중의 아연 이온 분리 Jr.C.S.;J.K.Cheon;H.D.Ha
  9. Solv. Extr. and Ion Exch v.5 no.1 Spectral studies and equilibrium analysis of the didodecylnaphthalene sulfonic acid, dicyclohexano-18-crown-6, $Sr^{2+}$ extractionsystem Bryan,S.A.;W.J.mcDowell;B.A.Moyer;C.F.Baes Jr.;G.N.Case
  10. Solv. Extr. and Ion Exch v.6 no.1 Transfer rate and separation of $Sr^{2+}$ and $Cs^{2+}$ by supported liquid membranes utilizing synergized crown ether carriers Ramadan,A.;P.R.Danesi
  11. Handbook of solvent extraction Lo,T.C.;M.H.I.Baird;C.Hanson