Dr. Ken Friesen

Professor and Past Chair B.Sc (Winnipeg), M.Sc.Ph.D. (Manitoba) Phone: (204) 786-9043 FAX: (204) 775-2114 E-MAIL: k.friesen@uwinnipeg.ca
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Teaching Specialties:

Analytical (chemical equilibrium and instrumental analysis) and environmental chemistry

Research Interests:

The environmental and analytical chemistry of persistent organic chemicals including environmental reactivity or persistence, photocatalytic degradation, air-water exchange, and analytical methods. Current projects involve photolytic studies of short-chain polychlorinated n-alkanes (PCAs) and synthetic polymers, air-water behavior of hexachlorocyclohexanes (HCHs) in Lake Winnipeg and LC-MS/MS analysis of fluorinated organic compounds (FOCs).

Selected Publications:

T.M. El-Morsi, A.S. Abd-El-Aziz, G.T. Tomy and K.J. Friesen, “Photochemical Oxidation of Short-Chain Polychlorinated n-Alkane Mixtures Using H2O2/UV and the Photo-Fenton Reaction,” submitted to Intern. J. Photoenergy (2003). A.S. Abd-El-Aziz, T.H. Afifi, W.R. Budakowski, K.J. Friesen and E.K. Todd, “The First Example of Iron-Coordinated Polyaromatic Ethers and Thioethers with Azo Dye-Functionalized Side Chains,” Macromolecules 35 8929-8932 (2002). T.M. El-Morsi, A.S. Abd-El-Aziz, H.M. Abdelbary, M.M. Emara and K.J. Friesen, “Homogeneous Photodegradation of 1,2,9,10-Tetrachlorodecane in Aqueous Solutions Using Hydrogen Peroxide, Iron and UV Light,” Chemosphere 47 343-348 (2002). S.A. Sadek, S. Ebraheem, T. El-Morsi, K.J. Friesen and A.S. Abd-El-Aziz, “Photodegradation of 1,12-Dichlorododecane in Aquatic Media With a Xenon Light Source,” Int. J. Sci Technol. 13 45-50 (2002). T.M. El-Morsi, W.R. Budakowski, A.S. Abd-El-Aziz and K.J. Friesen, “Photocatalytic Degradation of 1,10-Dichlorodecane in Aqueous Suspensions of TiO2: A Reaction of Adsorbed Chlorinated Alkane with Surface Hydroxyl Radicals,” Environ. Sci. Technol. 34 1018-1022 (2000). K.G. Drouillard, G.T. Tomy, D.C.G. Muir, and K.J. Friesen, “Volatility of Chlorinated n-Alkanes (C10-C12). Vapor Pressures and Henry’s Law Constants,” Environ. Toxicol. Chem. 17 1252-1260 (1998). K.G. Drouillard, T. Hiebert, P. Tran, G.T. Tomy, D.C.G. Muir, and K.J. Friesen, “Estimating the Aqueous Solubilities of Individual Chlorinated n-Alkanes (C10-C12) from Measurements of Chlorinated Alkane Mixtures,” Environ. Toxicol. Chem.17 1261-1267 (1998).

Selected Presentations:

T.M. El-Morsi, G.T. Tomy, A.S. Abd-El-Aziz, and K.J. Friesen, “Photocatalytic Degradation of Short Chain Polychlorinated n-Alkanes using TiO2,” The 8th International Conference on Advanced Oxidation Technologies for Water and Air Remediation,” Toronto, ON, Nov 17-21, 2002. G. Tomy, S. Tittlemier, V. Palace, W. Budakowski, E. Braekevelt, L. Brinkworth, B. Lau and K. Friesen, “In Vitro Biotransformation of PFOSA and N-EtPFOSA by Rainbow Trout Liver Microsomes,” SETAC 23rd Annual Meeting, Salt Lake City, UT, Nov 16-20, 2002. T.M. El-Morsi, G.T. Tomy, A.S. Abd-El-Aziz, and K.J. Friesen, “Effect of Hydrogen Peroxide on the Photodegradation of Short-Chain Chlorinated Paraffins (C10-C13) in Natural Water,” IAGLR 2002, Winnipeg, MB. Jun 2-6, 2002. T.M. El-Morsi, M.M. Emara, H.M. Abdelbary, A.S. Abd-El-Aziz, and K.J. Friesen, “Photocatalytic Degradation of 1,10-Dichlorodecane in Aqueous Suspensions of TiO2: Role of Transition Metals and Adsorption,” 4rd International Scientific Conference (Science, Development & Environment) Cairo, Egypt, Mar. 2001. T.M. El-Morsi, W.R. Budakowski, B.H. Elmayergi, A.S. Abd-El-Aziz, and K.J. Friesen, “Assessing the Environmental Persistence of Chlorinated n-Alkanes: Hydrolytic and Photolytic Reactivity,” SETAC 21st Annual Meeting, Nashville, TN, Nov 12-16, 2000. B.H. Elmayergi, T.M. El-Morsi, A.S.Abd-El-Aziz, and K.J. Friesen, “Environmental Persistence and Photocatalytic Remediation of Polychlorinated n-Alkanes in Water,” 46th International Conference on Analytical Sciences and Spectroscopy, Winnipeg, MB. Aug. 13-16, 2000. T.M. El-Morsi, K.J. Friesen, and A.S. Abd-El-Aziz, “Homogeneous Photodegradation of Tetrachlorodecane via the Photo-Fenton Reaction,” 24th International Conference on Science and Technology, Washington, DC., Oct. 22-25, 1999. S.A. Sadek, S. Ebraheem, and K.J. Friesen, “Heterogeneous Photocatalytic Degradation of Hazardous Waste in Aqueous Suspension,” International Conference on Hazardous Waste: Sources, Effects and Management, Cairo, Egypt, Dec. 12-16, 1998. K.J. Friesen, “Environmental Chemistry of Organic Contaminants: Techniques & Predictions,” 1st International Training Workshop on Environmental Photochemistry, Cairo, Egypt, Dec. 17-22, 1997. P. Tran, K.G. Drouillard, and K.J. Friesen, “Desorption Kinetics of 14C-Polychlorinated Dodecanes from Lake Sediments,” 11thAnnual CSC Western Canadian Undergraduate Chemistry Conference, Winnipeg, MB, May 1-3, 1997.

Research Funding:

DFO Subvention Research Grant, Development of Analytical Methods to Measure Fluorinated Organic Compounds in the Canadian Arctic Environment,” 2002. Manitoba Hydro Research Grant, Environmental Remediation of Polychlorinated Paraffin Oils in Water,” 2001-2003. Canadian Chlorine Coordinating Committee Research Grant, Environmental Persistence of Short-Chain Chlorinated Paraffins, 2000-2002. Chloroparaffin Industry Association Research Grant, Photocatalytic Degradation of Short-Chain Chlorinated Paraffins, 1999-2000. TetrES Industrial Research Grant, Properties and Sorption Potential of Waste Fly Ash Material, 1999. Natural Sciences and Engineering Research Council of Canada (NSERC) Strategic Group Grant, The Analytical Chemistry, Physical Properties, and Bioaccumulation of Chlorinated Paraffins, 1993-1997.

Graduate Students:

Taha El-Morsi, Ph. D. candidate (Chemistry), University of Manitoba. Wes Budakowski, M.Sc. (Chemistry), University of Manitoba (2002). Ken Drouillard, M.Sc. (Soil Science) University of Manitoba (1996). Myrosia Foga, M.Sc. (Chemistry) University of Manitoba (1991).