Treatment of Oily Wastes Using High-Shear Rotary Ultrafiltration
Publication: Journal of Environmental Engineering
Volume 123, Issue 12
Abstract
The high-shear rotary ultrafiltration (UF) system uses membrane rotation to provide the turbulence required to minimize concentration polarization and flux decline. The high-shear UF system was effective in concentrating oily wastes from about 5% to as high as 65%. The decoupling of turbulence promotion from feed pressurization/recirculation by rotating the membrane was the primary reason for the improvement in performance over that observed with conventional UF systems. Transitional and gel layer oil concentrations (20% and 50–59%, respectively) were higher than values reported in the literature. Permeate flux was dependent on the temperature and rotational speed. Flux increased by about 45% when the temperature was increased from 43 to 60°C. A larger decrease in waste viscosity, over that predicted for water alone, and increased oil droplet diffusivity were hypothesized as reasons for the stronger than expected flux-temperature relationship. The flux-rotational speed (ω) relationship was described by J=f(ω)0.90; however, the gel layer exhibited stability with increasing ω. The ceramic membrane was superior to the polymeric membrane in regards to permeate flux and quality as well as cleaning and durability.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Bodzek, M., and Konieczny, K.(1992). “The use of ultrafiltration membranes made of various polymers in the treatment of oil-emulsions wastewaters.”Waste Mgmt., 12, 75–84.
2.
Cheryan, M. (1986). Ultrafiltration handbook. Technomic Publishing Co., Lancaster, Pa.
3.
Lee, S., Yves, A., and Roques, H.(1984). “Concentration polarization, membrane fouling and cleaning in ultrafiltration of soluble oil.”J. of Membrane Sci., 19, 23–38.
4.
Lin, W., and Reed, B. E. (1996). “Comparison of cross-flow ultrafiltration and centrifugal membrane technology in treating an oil/grease wastewater.”Proc., 28th Mid-Atlantic Industrial and Hazardous Waste Conf., A. Scott Weber, Ed., Technomic Publishing Co., Lancaster, Pa., 278–285.
5.
Lipp, P., Lee, C. H., Fane, A. G., and Fell, C. J. D.(1984). “A fundamental study of the ultrafiltration of oil-water emulsions.”J. of Membrane Sci., 36, 161–177.
6.
Pinto, S. D. (1978). “Ultrafiltration for dewatering of waste emulsified oils.”Lubrication challenges in metalworking and processing. Proc., 1st Int. Conf., Illinois Institute of Technology Research Institute, Chicago, Ill., 1–4.
7.
Reed, B. E., Lin, W., Dunn, C., Carriere, P., and Roark, G.(1997). “Treatment of an oil/grease wastewater using ultrafiltration.”Separation Science and Technology, 32(9), 1493–1511.
8.
Standard methods for the examination of water and wastewater. (1992). American Public Health Association (APHA), Washington, D.C.
9.
Zaidi, A., Simms, A., and Kok, S.(1992). “The use of micro/ultrafiltration for the removal of oil and suspended solids from oilfield brines.”Water Sci. and Technol., 25(10), 163–173.
Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 123 • Issue 12 • December 1997
Pages: 1234 - 1242
Copyright
Copyright © 1997 American Society of Civil Engineers.
History
Published online: Dec 1, 1997
Published in print: Dec 1997
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.