Ultrafiltration Characteristics of Oil-Detergent Water Systems: Membrane Fouling Mechanisms.
KENTUCKY UNIV LEXINGTON DEPT OF CHEMICAL ENGINEERING
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The ultrafiltration characteristics of processing oily bilge water, synthetic lubricating oil, and nonionic detergents with distilled river and seawater are evaluated with noncellulosic tubular membranes. Water flux behavior membrane fouling is dictated by membrane resistance increase due to detergent-membrane interaction and due to surface fouling in the presence of oil-detergent emulsion and suspended solids. Membrane fouling, as well as membrane cleaning requirements, are dependent on the type of oildetergentwater system. Flux decline could be minimized by operating at temperatures above 35C andor with short-term membrane depressurization. In all cases the steady state water flux is a function of initial membrane water flux. Depending on the waterdetergent system, water flux of 15-103 galsq ftday at 25C and pressures less than 25 psi can be obtained. Author
- Physical Chemistry
- Lubricants and Hydraulic Fluids
- Solvents, Cleaners and Abrasives