IEC 263 |
| Allen W. Apblett and Tarek Trad. Department of Chemistry, Oklahoma State University, Physical Sciences 107, Stillwater, OK 74078 |
| Magnetic filtration can provide rapid, efficient removal of magnetic materials from a waste stream. However, since most pollutants are non-magnetic, it is necessary to use magnetically-active "extractants" to bind to pollutants and allow their separation by a magnetic filter. Excellent candidates for extractants are activated carbons with embedded particles of magnetic ceramic oxides such as ferrites or magnetite. Such materials can be used to separate petrochemicals, herbicides, and pesticides from water and break oil in water emulsions. We have found that magnetic activated carbons are conveniently synthesized by addition of iron and nickel salts to conventional recipes for activated carbon synthesis. The resulting materials have moderately high surface area and have proven useful for separation of oil, decane, and herbicides from water |
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Magnetic-Field-Enhanced Separation and Related Processes (sponsored by Separation Science & Technology Subdivision)
1:30 PM-4:50 PM, Thursday, March 27, 2003 Convention Center -- Room 393, Oral
Division of Industrial and Engineering Chemistry |