Thin film composite polyamide membrane parameters estimation for phenol-water system by reverse osmosis
- Indian Inst. of Tech., New Delhi (India). Chemical Engineering Dept.
A commercial thin film composite polyamide reverse osmosis membrane is used to separate an aqueous phenol-water binary system. The separation data are analyzed using a combined film theory-solution-diffusion (CFSD) model and a combined film theory-Spiegler-Kedem (CFSK) model. In the present investigation a new phenomenon is observed: there exists a maximum in the rejection when it is plotted against the product flux through the membrane. This behavior is explained for both models. An equation for J{sub v,min}, which is the value of the product flux J{sub v} at which the rejection reaches a maximum, is derived from both models. Although the parameters for both models are consistent over the range of operating conditions, the CFSK model is more accurate for the phenol-water system.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 323979
- Journal Information:
- Separation Science and Technology, Vol. 33, Issue 16; Other Information: PBD: Dec 1998
- Country of Publication:
- United States
- Language:
- English
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