Supported liquid membrane strip dispersion

Gu S, Yu Y, He D, Ma M. Comparison of transport and separation of Cd(II) between strip dispersion hybrid liquid membrane (SDHLM) and supported liquid membrane (SLM) using tri-n-octylamine as carrier. Sep Purif Technol 2006 51 277-284. 

Ho, W.S.W., Poddar, T.K. and Neumuller, T.E. (2002) Removal and recovery of copper and zinc by supported liquid membranes with strip dispersion. Journal of the Chinese Institute of Chemical Engineers, 33, 67. 

Li, S.-J., Chen, H.-L. and Zhang, L. (2009) Recovery of fumaric acid by hollow-fiber supported liquid membrane with strip dispersion using N7301 as carrier. Separation and Purification Technology, doi 10.1016/j. seppur.2008.12.004. 

Ho, W.S., Combined supported liquid membrane/strip dispersion process for the removal and recovery of penicillin and organic acids, US Patent No. 6,433,163, 2002. 

Ho, W.S., Inventor Commodore Separation Technologies Inc., Assinee. Combined supported liquid membrane/stripping dispersion process for removal and recovery of radionuclides and metals, US Patent 6,328,782, 2001. 

Ho, W.S. and Wang, B., Strontium removal by new alkyl phenylphosphonic acids in supported liquid membranes with strip dispersion,... 

Sonawane, J.V., Pabby, A.K., and Sastre, A.M., Recovery of gold(I) by supported liquid membrane with strip dispersion using hollow fiber contactors, in 5th European Meeting on Chemical Industry and Environment (EMChIE-2006), Vienna, Austria, 2006. 

Promising results are shown by recently developed integrated SLM-ELM [84, 85] systems. These techniques are known as supported liquid membrane with strip dispersion (SLMSD), pseudo-emulsion-based hollow fiber strip dispersion (PEHFSD), emulsion pertraction technology (EPP), and strip dispersion hybrid Hquid membrane (SDHLM). AH techniques are the same the organic phase (carrier, dissolved in diluent) and back extraction aqueous phase are emulsified before injection into the module and can be separated at the module outlet. The difference is only in the type of the SLM contactors hoUow fiber or flat sheet and in the Hquid membrane (carrier) composition. These techniques have been successfuUy demonstrated for the removal and recovery of metals from wastewaters. Nevertheless, the techniques stiU need to be tested in specific apphcations to evaluate the suitabUity of the technology for commercial use. 

In the framework of the EU Life project Empereur, two full-scale emulsion pertraction installations have been built and are demonstrated at the site of the galvanic firms Loko Gramsbergen and Galvano Techniek Veenendaal (GTV), both in the Netherlands. In this technique, however, the dispersion of one liquid phase in another is not created via a membrane but rather externally in a mixer/dispersion device. This technique has also been identified as a supported liquid membrane with a strip dispersion and has been employed in a large-scale installation (Figure 4.12). More details are provided in [103,107],... 

This chapter reviews the recent developments of two types of facilitated transport membranes (1) supported liquid membranes (SLMs) with strip dispersion and (2) carbon-dioxide-selective polymeric membranes, for environmental, energy, and biochemical applications. 

Supported Liquid Membranes with Strip Dispersion... 

Supported Liquid Membrane with Strip Dispersion The SLM... 

Figure 28.2 Schematic of supported liquid membrane with strip dispersion.

SUPPORTED LIQUID MEMBRANES WITH STRIP DISPERSION... 

SUPPORTED LIQUID MEMBRANES WITH STRIP DISPERSION 28.2.1 Chromium Removal and Recovery... 

Supported liquid membranes with strip dispersion have great potential for removal and recovery of antibiotics and other bioproducts from aqueous solutions and fermentation broths. On penicillin G recovery, the SLM removed it from a feed of 8840 ppm and concentrated it to a high concentration of 41,011 ppm in the aqueous strip solution with a high recovery of about 93%. 

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