Comparison studies of applied pressure and concentration gradient driving forces in ceramic nano-filtration membrane for the production of intravenous salt solution

Rosalam, Sarbatly and D., Krishnaiah and Richard, England and Sariah, Abang and Jeanette, Jeffery (2007) Comparison studies of applied pressure and concentration gradient driving forces in ceramic nano-filtration membrane for the production of intravenous salt solution. Journal of Applied Sciences, 7 (15). pp. 2069-2075. ISSN 1812-5654

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Abstract

In this study, the boundary-resistance layer model and solution-diffusion model were used to investigate the applied driving pressure force technique and the concentration driving force technique, respectively, for the production of intravenous drip solution. A 5 kD monolithic membrane coated with Al2O3 and TiO and NaCl aqueous solution as the feed solution was used. The results show that the boundary-resistance layer model diffusivity coefficient, D = 1.8�10-9 m2 sec-1 and the mass transfer coefficient, k = 1. 19- 10-4 m sec-1 which were both slightly higher than the solution-diffusion model. Applying Fick's law for the solution diffusion model, the calculated operating pressure inside the lumen was 15 kPa. Clearly, the findings suggested that the boundary-resistance layer model should be chosen for the production of pure and sterile intravenous salt solution as it provided higher diffusivity and mass transfer coefficient than the solution-diffusion model. © 2007 Asian Network for Scientific Information.

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