UH Dept of Civil & Environmental Engineering








	Presentations Invited Presentations Invited Academic Seminars



	Shankar Chellam Professor UH Department of Civil and Environmental Engineering N107 Engineering Building 1, Houston, TX 77204-4003 tel: 713-743-4265 \| fax: 713-743-4260 \| chellam@uh.edu

	Presentations with Published Proceedings Badireddy, A.R., S. Chellam, E.M. Hotze, and M.R. Wiesner, "Virus Inactivation is Mediated by Reactive Oxygen Species in Photosensitized Fullerol Nanoparticle Suspensions," International Water Association conference on Particle Separations and Nanoparticles in Water, June 3 – 5, 2009, Durham, NC. Badireddy, A.R., E.M. Hotze, S. Chellam, P.J.J. Alvarez, and M.R. Wiesner, "Inactivation of Bacteriophages via Photosensitization of Fullerol Nanoparticles," Poster in “Fresh Ideas” Session at AWWA Annual Conference and Exposition, June 8–12, 2008, Atlanta, GA. Kulkarni, P., S.Chellam and M.P. Fraser, “Quantification of Fine Particle Emissions from Petroleum Refining Operations in Houston, TX Using Rare Earth Elements as Markers,” Air and Waste Management Association’s Annual Conference, Portland, OR, June 24–27, 2008. (Refereed publication) Kulkarni, P., S. Chellam and M.P. Fraser, “Tracking Petroleum Refinery Emission Events Using Lanthanum and Lanthanides as Elemental Markers for Fine Particulate Matter,” American Geophysical Union Fall meeting, 10–14 December 2007, San Francisco, CA. Y. Shim and S. Chellam, “Steric And Electrostatic Interactions Govern Nanofiltration Of Amino Acids,” Separations Division, AIChE Annual Meeting, November 4–9, 2007, Salt Lake City, UT. R.R. Sharma and S. Chellam, “Temperature Effects On Sieving Characteristics Of Thin-Film Composite Nanofiltration Membranes: Pore Size Distributions And Transport Parameters,” Separations Division, AIChE Annual Meeting, November 4–9, 2007, Salt Lake City, UT. Baltus, R., W. Xu, A.R. Badireddy, and S. Chellam, “Effect of Bacteria and Virus Shape on Rejection by Microfiltration Membranes: Comparison Of Experiment With Hindered Transport Theory,” Separations Division, AIChE Annual Meeting, November 4–9, 2007, Salt Lake City, UT. Chellam, S., P. Kulkarni and M.P. Fraser, “Tracking Petroleum Refinery Emission Events Using Lanthanum And Lanthanides As Elemental Markers For PM2.5,” Environmental Division, AIChE Annual Meeting, November 4–9, 2007, Salt Lake City, UT. Chellam, S., P. Kulkarni and M.P. Fraser, “Tracking Petroleum Refinery Emission Events using Lanthanum and Lanthanides as Elemental Markers for Airborne Fine Particles,” Association of Environmental Engineering and Science Professors’ Research and Education Conference, July 28–August 1, 2007, Blackburg, VA. P. Ruchhoeft, K. Han, A. Ruiz, V. Parekh, W. Xu, D. Litvinov, and S. Chellam, “Fabrication of Microfiltration Membranes with Highly Ordered, Lithographically-defined Pores,” The 17th Biennial Meeting of the International Society for Molecular Recognition, July 8–12, 2007, New York University, New York, NY. Chellam, S., P.R. Kulkarni, R.K.M. Jayanty, and J.B. Flanagan, “A Comparison of Multi-elemental Analysis of Airborne Fine Particles Using XRF and ICP-MS: Implications for the Use of Trace Metals in Receptor Modeling,” Developments in PM2.5 Chemical Speciation session, Air and Waste Management Association’s Air Quality Measurement Methods and Technology Symposium, San Francisco, CA, April 30–May 3, 2007. (Refereed publication.) Baltus, R., W. Xu, A.R. Badireddy, and S. Chellam, “Effect of Bacteria and Virus Shape on Rejection by Microfiltration Membranes,” North American Membrane Society Annual Meeting, Microfiltration and ultrafiltration session, Orlando, FL, May 12–16, 2007. Badireddy, A.R., S. Chellam, S. Yanina, P.L. Gassman, and K.M. Rosso, Bismuth Dimercaptopropanol (BisBAL) Inhibits the Expression of Extracellular Polysaccharides and Proteins in Brevundimonas diminuta: Implications for Membrane Microfiltration, North American Membrane Society, May 12 – 16, 2007. Hotze, E.M., A.R. Badireddy, M.R. Wiesner, and S. Chellam, Singlet Oxygen and Superoxide Production by Three Types of Aqueous Fullerene Suspensions, 233rd ACS National Meeting, Chicago, IL, March 25 – 29, 2007. Venkataramanan, A., D.A. Clifford and S. Chellam, Comparison of Virus Removal in Electrocoagulation-Microfiltration and Chemical Coagulation-Microfiltration Treatment Systems, Paper in “Universities Forum” Session in AWWA Annual Conference and Exposition, June 24 – 28, 2007, Toronto, Ontario, Canada. Bagga, A., S. Chellam and D.A. Clifford, Comparison of Electrocoagulation and Chemical Coagulation for Microfiltration Pretreatment of Natural Water, Student Paper for Texas Water 2007, WEAT and Texas Section AWWA Annual Conference April 10 – 13, Fort Worth, TX. Badireddy, A.R., S. Chellam, S. Yanina, P.L. Gassman, and K.M. Rosso, Bismuth Dimercaptopropanol (BisBAL) Inhibits the Expression of Extracellular Polysaccharides and Proteins in Brevundimonas diminuta, Student Paper for Texas Water 2007, WEAT and Texas Section AWWA Annual Conference April 10 – 13, Fort Worth, TX. Venkataramanan, A., D.A. Clifford and S. Chellam, Comparison of Virus Removal in Electrocoagulation-Microfiltration and Chemical Coagulation-Microfiltration Treatment Systems, Student Paper for Texas Water 2007, WEAT and Texas Section AWWA Annual Conference April 10 – 13, Fort Worth, TX. Sharma, R.R. and S. Chellam, Temperature Effects on the Transport of Water, Uncharged and Charged Solutes across Polymeric Nanofiltration Membranes, AWWA Membrane Technology Conference and Exhibition, March 18 – 21, 2007, Tampa, FL. Bagga, A., S. Chellam and D.A. Clifford, Comparison of Electrocoagulation and Chemical Coagulation for Microfiltration Pretreatment of Natural Waters, AWWA Membrane Technology Conference and Exhibition, March 18 – 21, 2007, Tampa, FL. Badireddy, A.R. and S. Chellam, Diffusivity Measurements of Bacteriophages by Gradient Diffusion and Dynamic Light Scattering, Session #66; Colloidal & Interfacial Phenomena in Aquatic Systems in AIChE Annual Meeting, November 12 – 17, 2006. San Francisco, CA. Baltus, R.E., W. Xu, A.R. Badireddy, and S. Chellam, Effect of Particle Shape on Rejection Coefficients in Track Etch Membranes, Poster presentation in Membranes: Materials & Processes Gordon Research Conference, August 6 – 11, 2006. New London, NH. Chellam, S. and P. Kulkarni, 2006. Elemental Analysis of Atmospheric Fine Particles at Trace and Ultra-Trace Levels using Microwave Digestion and Inductively Coupled Plasma – Mass Spectrometry, Air and Waste Management Association’s Air Quality Measurement Methods and Technology Symposium, May 9 – 11, 2006, Durham, NC. Emilie, K.L. and S. Chellam, 2006. Darcy and non-Darcy Flow across Microfiltration Membranes, Student Paper for Texas Water 2006, WEAT and Texas Section AWWA Annual Conference, April 4 – 7, 2006, Austin, TX. Kulkarni, P., S. Chellam, and M.P. Fraser, 2005. Lanthanum and Lanthanides in Atmospheric Fine Particles and their Apportionment to Refinery and Petrochemical Operations in Houston, TX. Poster session at the 24th Annual American Association for Aerosol Research Conference, October 17 – 21, 2005, Austin, TX. Han, K., W. Xu, A. Ruiz, P. Ruchhoeft, and S. Chellam, 2005. Fabrication of Polymeric Micro- and Ultra-filtration Membrane Filters using Aperture Array Lithography. Association of Environmental Engineering and Science Professors’ Research and Education Conference, Session O4a, July 24 – 27, 2005, Potsdam, NY. Ruiz, A., W. Xu, K. Han, B.A. Raju, P. Ruchhoeft, and S. Chellam, 2005. Fabrication of Ultra-filtration Membranes with Highly Ordered, Lithographically-defined Pores, Poster session II in the 2nd Conference on Nanoscale Devices and System Integration, April 4-6, 2005, Houston, TX. Raju, B.A. and S. Chellam, 2005. Investigation of Virus Transport across Microfiltration membranes, Student Paper for Texas Water 2005, WEAT and Texas Section AWWA Annual Conference April 5 – 8, 2005, Galveston, TX. Kulkarni, P. and S. Chellam, Predicting Disinfection By-product Formation in Municipal Drinking Water using Artificial Neural Networks. Student Paper for Texas Water 2005, WEAT and Texas Section AWWA Annual Conference April 5 – 8, 2005, Galveston, TX. Shim, Y. and S. Chellam, 2005. Rejection Behavior of Amino Acids in Terms of Partitioning and Steric Effects. Paper in “Organic Removal by High-Pressure Membranes” Session TUE11, AWWA Membrane Technology Conference and Exhibition, March 6 – 9, 2005, Phoenix, AZ. Han, K., W. Xu, A. Ruiz, P. Ruchhoeft, and S. Chellam, 2005. Fabrication and Characterization of Polymeric Microfiltration Membrane Filters using Aperture Array Lithography. Paper in “Advances in Membrane Materials I” Session WED4, AWWA Membrane Technology Conference and Exhibition, March 6 – 9, 2005, Phoenix, AZ. Chellam, S. and W. Xu, 2004. Fouling during Dead-end Microfiltration of Bacterial Suspensions. 228th American Chemical Society National Meeting, Division of Environmental Chemistry, August 22-26, 2004, Philadelphia, PA. Sharma, R. and Chellam, S. 2004. Temperature Effects on Thin-Film Composite Nanofiltration Membranes: Pore Size Distributions, and Transport Parameters. Session "Colloidal and Interfacial Phenomena in Environmental Systems, in 78th ACS Colloid and Surface Science Symposium June 20-23, 2004, New Haven, Connecticut. Xu, W., and Chellam, S. 2004. Impact of Membrane Pore Size on Fouling in Dead-end Microfiltration of Microbial Suspensions. Session "Colloidal and Interfacial Phenomena in Environmental Systems, in 78th ACS Colloid and Surface Science Symposium June 20-23, 2004, New Haven, Connecticut. Kulkarni, P., S. Chellam, and M. P. Fraser, 2004. Emissions of Fine Particulate Matter From Motor Vehicles: A Tunnel study in Houston, TX. 2004 Joint Assembly of AGU, CGU, SEG, and EEGS, May 17-21, 2004, Montreal, Canada. Shetty, G.R. and S. Chellam, 2003. Predicting Contaminant Removal During Nanofiltration Using Artificial Neural Networks. AWWA Membrane Technology Conference and Exhibition, March 2-5, 2003, Atlanta, GA. Zhu, B., D.A. Clifford, and S. Chellam, 2003. Virus and NOM Removal by Electrocoagulation-Microfiltration. AWWA Membrane Technology Conference and Exhibition, March 2-5, 2003, Atlanta, GA. Fraser M., G. Ghuyre, P. Kulkarni, and S. Chellam, 2002. Multi-element Digestion and Analysis of Trace Metals in Siliceous Materials. 6th International Aerosol Conference, September 2002, Taipei, Taiwan. Ghurye, G., P. Kulkarni, M.P. Fraser, and S. Chellam. 2002. In Situ Generation of Hydrofluoric Acid for the Digestion of Atmospheric Particulate Matter. 21st Annual American Association for Aerosol Research Conference, Charlotte, NC. Chellam, S. and S.W. Krasner, 2002. Formation and Speciation of Trihalomethanes and Haloacetic Acids in Chlorinated Nanofiltered Waters. Paper in "DBP and Distribution Systems" research session THUR7, in AWWA Annual Conference and Exposition. June 16-20, 2002, New Orleans, LA. Xu, W., S. Chellam and D.A. Clifford, 2002. Modeling and Experimental Verification of Dead-end Membrane Filtration of Coagulated Suspensions. Paper in "Universities Forum II" Session TUE17, in AWWA Annual Conference and Exposition. June 16-20, 2002, New Orleans, LA. Sharma, R.R. and S. Chellam, 2002. Diffusive Transport of Organic Compounds Across Nanofiltration and Microfiltration Membranes. Student Paper for Texas Water 2002, WEAT and Texas Section AWWA Annual Conference April 2-5, 2002, San Antonio, TX. (2nd prize in student paper competition.) Chellam, S. 2001. Nanofiltration for Disinfection By-Product Control: Removal, Speciation, and Surrogates. American Chemical Society 221st National Meeting, April 1-5, 2001. San Diego, CA. Chellam, S. 2001. Quantifying Diffusion Limited Disinfection By-Product Precursor Transport Across Nanofiltration Membranes. Paper in Research Session I "Water Quality" M5. In AWWA Membrane Technology Conference, March 4-7, 2001, San Antonio TX. Mulford, L.A. J.S. Taylor, D.G. Linton, D.M. Nickerson, and S. Chellam, 2001. Predicting Membrane System Water Quality Using an Integrated Diffusion Model. Paper in Poster Session, in AWWA Membrane Technology Conference, March 4-7, 2001, San Antonio TX. Sharma, R. and Chellam, S. 2001. Effect of Process Variables on Membrane Molecular Weight Cut Off Determination and Implications for NOM Rejection by Nanofiltration. Paper in Research Session III "Pretreatment Studies" T5. In AWWA Membrane Technology Conference, March 4-7, 2001, San Antonio TX. Chellam, S. 2000. Disinfection By-Product Precursor Removal by Nanofiltration. Proceedings of the AWWA Annual Conference and Exposition. June 11-15, Denver, CO.Haas, C.N. D. D'Andrea, J. Dmochowski, J. Jacangelo, S. Chellam, C. P. Gerba, Inactivation of Mycobacterium fortuitum by Free Chlorine. Presented at the AWWA Water Quality Technology Conference, Oct. 31–Nov. 3, Tampa, FL. Haas, C.N. J.G. Jacangelo, S. Chellam, C. Gerba, D.L. D’Andrea, J.E. Dmochowski, 1999. Inactivation of Legionella pneumophila by Free Chlorine. Presented at the 1999 International Symposium on Waterborne Pathogens, Aug. 29–Sept. 1, Milwaukee, WI. Chellam, S. Effects of Water Quality, Operating Conditions, and Membrane Type on Solute Rejection by Nanofiltration Membranes Evaluated under ICR Requirements. Presented at the 1999 AWWA Annual Conference and Exposition. June 20–24. Chicago, IL. Chellam, S. M.R. Wiesner, and J.G. Jacangelo, 1999. Particle Fouling of Membrane Filters Operated in Crossflow and Direct Flow. Presented at AWWA Particle Measurement and Characterization in Drinking Water Symposium, March 28–30, Nashville, TN. Chellam, S. and J.G. Jacangelo 1999. Critical Recovery Concept in Constant Flux MF and Effects of Operational Mode on MF Performance. Presented at the American Water Works Association, Membrane Technologies in the Water Industry Conference, Feb. 28–Mar 3, Long Beach, CA. Chellam, S., Abrajano, J.T. J.A. Wilson, and G. Greer, 1998. ICR Testing – Caloosahatchee River, Lee County, Florida. ICR Water Quality Program, Florida Section AWWA Annual Conference, Nov. 8–11, Orlando, FL. Chellam, S., Abrajano, J.T., B. Fierle, R. Boyce, 1998. A Comparison of Permeate Water Quality and Membrane Fouling Obtained by Bench-Scale ICR Testing and at Full-Scale for the City of Hollywood. ICR Water Quality Program, Florida Section AWWA Annual Conference, Nov. 8–11, Orlando, FL. Johnson, R.L., Waller, P.L., Chellam, S., and Baird, B. Tampa Water Resource Recovery Project, Ozonation for Indirect Reuse. Presented at the 1998 International Ozone Association Pan American Group Conference, Oct. 18–21, Vancouver, BC. Canada. p 549–559. Chellam, S., E.A. Landsberg, D.R. Wilkes, and J.G. Jacangelo, 1998. Impact of Water Quality on Nanofiltration Performance under the Requirements of the ICR for the Rapid Bench-Scale Membrane Test. Presented at the Virginia Section of the AmericanWater Works Association, Annual Conference, Oct. 15–16, Roanoke, VA. Chellam, S., and J.G. Jacangelo, 1998. Fouling of Microfilters in Direct Flow: Comparison of Constant Pressure and Constant Flux Operation. Presented at the American Water Works Association, Annual Conference and Exposition, June 21–25, Dallas, TX. Volume C, p 27-33. Atencio, M. Chellam, S., and Adham, S. Treatment of Utah Lake Water with Membrane Processes. Presented at the American Water Works Association, Membrane Technologies in the Water Industry Conference, Feb. 28–Mar 3, Long Beach, CA. Jacangelo, J.G., S. Chellam, and T.P. Bonacquisti 1998. Impact of Fouling on Costs of Integrated Double Membrane System for Treatment of Surface Water. Presented at the American Water Works Association, Membrane Technologies in the Water Industry Conference, Feb. 28–Mar 3, Long Beach, CA. Chellam, S., J.G. Jacangelo, and D. Haddaway, 1997. Bench-Scale Evaluation of Nanofiltration for DBP Precursor Removal under the Requirements of the ICR. Presented at the American Water Works Association, Water Quality Technology Conference. Nov. 7–11, Denver, CO. Chellam, S., J.G. Jacangelo, and R.R. Trussell, 1997. Pressure-Driven Membrane Technologies for Drinking Water Treatment in the United States. Presented at the 15th Annual Membrane Technology/Separations Planning Conference, Business Communications Co., Inc. Oct. 27–29, Newton, MA. Chellam, S., J.G. Jacangelo, and D. Haddaway, 1997. Bench-Scale Evaluation of Nanofiltration for DBP Precursor Removal Under the Requirements of the ICR: Results for the City of Portsmouth. Presented at the Chesapeake Section of the American Water Works Association, Annual Conference, Sept. 23-26, Gaithersburg, MD. Chellam, S., J.G. Jacangelo, T.P. Bonacquisti, and B.W. Long, 1997. Mathematical Modeling of Outside-in, Hollow-Fiber Microfiltration with Periodic Backwashing Using Compressible Cake Filtration Theory. Presented at the American Water Works Association, Annual Conference and Exposition, June 15-19, Atlanta, GA. Volume C, p 33–44. Schauer, B.A., D. Brinkman, S. Chellam, C. Triolo, and J.G. Jacangelo, 1997. Membrane Treatment —An Emerging Technology for Surface Water Treatment : The Lorton Pilot Experience. Presented at the American Water Works Association, Annual Conference and Exposition, June 15–19, Atlanta, GA. Volume D, p 413-426. Chellam, S., J.G. Jacangelo, T.P. Bonacquisti, and B.W. Long, 1997. Effect of Operating Conditions and Pretreatment for Nanofiltration of Surface Water. Presented at the American Water Works Association, Membrane Technologies in the Water Industry, Feb. 22–26, New Orleans, LA. p 215-231. Chellam, S., and M.R. Wiesner, 1997. Particle Transport and Permeate Flux Behavior in Crossflow Membrane Filters. Presented at the American Water Works Association, Membrane Technologies in the Water Industry, Feb. 22–26, New Orleans, LA. p 761-764. Chellam, S., J.G. Jacangelo, T.P. Bonacquisti, and B.W. Long, 1996. Assessment of a Bench Scale Test for the Prediction of Performance of Transverse Flow, Hollow Fiber Microfiltration. American Water Works Association, Water Quality Technology Conference. Nov. 17–21, Boston, MA. Bonacquisti, T.P., S. Chellam, B.W. Long, J.G. Jacangelo, 1996. Efficacy of Dual Membrane Systems for Removal of Disinfection by-Product Precursors. Presented at the Virginia Section of the American Water Works Association, Annual Conference, Oct. 15-18, Norfolk, VA. Chellam, S., E.A. Landsberg, D. Brinkman, T.P. Bonacquisti, and D.R. Wilkes, 1996. Pilot Scale Evaluation of Ozonation Design Parameters for a Surface Water. Presented at the Chesapeake Section of the American Water Works Association, Annual Conference, Sept. 3-6, Ocean City, MD. Chellam, S., J.G. Jacangelo, T.P. Bonacquisti, and B.W. Long, 1996. Impact of Natural Colloidal Material on Fouling of Hollow Fiber Microfiltration Membranes. Presented at the American Chemical Society, National Meeting (Division of Environmental Chemistry), Aug. 25–29, Orlando, FL. p. 97-99. Jacangelo, J.G., S.S. Adham, and S. Chellam, 1996. Dual Membrane Systems for Water Treatment and Water Reuse: Disinfection Efficacy. Presented at the UNESCO Centre for Membrane Science and Technology. Water Reuse for the Community and Industry: Latest Developments and Future Directions. Aug. 1, 1996, University of New South Wales, Sydney, Australia. Chellam, S., J.G. Jacangelo, T.P. Bonacquisti, and B.W. Long, 1996. Efficacy of Dual Membrane Systems for Removal of DBP precursors from Surface Water. Presented at the American Water Works Association, Annual Conference and Exposition, June 23-27, Toronto, Canada. p. 729-742. Wilkes, D.R., S. Chellam, B.W. Long, T.P. Bonacquisti, and J.G. Jacangelo, 1996. Conventional Treatment as a Pretreatment for Nanofiltration: Impact of DBP precursor Removal, Fouling and Facilities Design. Presented at the American Water Works Association, Annual Conference and Exposition, June 23-27, Toronto, Canada. p. 1041-1068. Chellam, S., and M.R. Wiesner, 1994. Dilute Suspension Transport and Permeate Flux Behavior in Crossflow Membrane Filters Operating in Laminar Flow. In Proceedings, American Water Works Association, Annual Conference and Exposition, June 19-23, New York, NY. 1031–1043. Chellam, S., and M.R. Wiesner, 1992. Physicochemical Aspects of Particle Motion in Crossflow Membrane Filters. In Proceedings, American Water Works Association, Annual Conference and Exposition, June 18-22, Vancouver, BC. 391–397. Chellam, S., and Wiesner, M.R. 1992. Particle Transport and Colloidal Fouling of Crossflow Membrane Filters. Presented at the Texas Section of the Water Environment Federation, Annual Conference, Dallas, TX. Wiesner, M.R., and S. Chellam, 1991. Mass Transport and Colloidal Fouling in Pressure-Driven Membrane Processes: Considerations in Potable Water Treatment. In Proceedings, American Water Works Association, Annual Conference and Exposition, June 23-27, Philadelphia, PA. 889–914. Chellam, S., and M.R. Wiesner, 1991. A First Principles Approach Towards Understanding Concentration Polarization. In American Water Works Association Seminar Proceedings, Membrane Technologies in the Water Industry, Mar. 10-13, Orlando, FL. 675–689. Invited Presentations Bacterial Fouling of Microfiltration Membranes, (2009) Keynote address at the International Water Association conference on “Particle Separations and Nanoparticles in Water”, June 3 – 5, 2009, Duke University, Durham, NC. Selected Aspects of Microfiltration and Nanofiltration Related to Fabrication, Fouling, and Permselectivity, Advances in Membrane Research session, American Water Works Association’s Water Quality Technology Conference, November 16 – 19, 2008, Cincinnati, OH. Municipal water treatment using membranes: An academic perspective, (2007) Keynote address at the Seoul International Symposium on Waterworks Technology, Seoul, South Korea, August 28 – 29, 2007. Mechanisms and Control of Biological Fouling of Microfiltration Membranes, (2007) Fouling Phenomena in Water Quality Applications session, AIChE National Meeting November 4 – 9, 2007, Salt Lake City, UT. Towards a Better Understanding of Seasonal Effects on Nanofiltration Membrane Performance: Water Permeability and Sieving, (2004) French-Texan Workshop on Potable Water and Water Treatment. Sponsored by The Office of Science and Technology of the French Embassy in the USA and The Environmental and Energy Systems Institute of Rice University. Rice University, January 12 – 13, 2004. Panelist in Research Workshop, The Future of Desalination in Texas, April 9th 2003, University of Texas, Austin, TX. Scale-Up Methodology For Municipal Water Nanofiltration Based on Permeate Water Quality. (2003) Pre-Conference workshop on "Membrane Scale-Up", AWWA Membrane Technology Conference and Exhibition, March 2-5, 2003, Atlanta, GA. Quality and Menbrane Treatability of the Lake Houston Water Supply. (2001) Texas Agricultural Experiment Station, College Station, TX. (with R.R. Sharma) Disinfection By-Product Precursor Removal by Nanofiltration. (2000) Disinfection Using Membranes in "AWWA Annual Conference and Exposition," Denver, CO. How Cl2 Disinfects, How SO2 Dechlorinates, and Their Effects on Receiving Streams. (1999) Advanced Topics Session in "TNRCC Water Quality Inspector Annual Training Seminar," Houston, TX. Particle Fouling of Pilot-Scale Low Pressure Membrane Filters. (1999) "Membrane Modeling—From Concepts to Practice," AWWA Annual Conference and Exposition, Chicago, IL. The Emerging Role of Membrane Filtration in Water Treatment. (1998) "Changing Role of Turbidity and Particle Removal in the Water Treatment Industry," University of Richmond, Richmond, VA. Invited Academic Seminars Anna University, Department of Chemical Engineering, July 2009 Sri Ramachandra University, Department of Environmental Health Engineering, July 2009 University of Illinois at Urbana Champaign, The Center for Advanced Materials for the Purification of Water with Systems (WaterCAMPWS), March 2009 University of Houston, Houston, TX, Department of Earth and Atmospheric Sciences, February 2009 Rice University, Department of Civil and Environmental Engineering, November 2008 University of Texas at Austin, Department of Civil and Environmental Engineering, August 2008 Carnegie Mellon University, Pittsburgh, PA, Department of Civil and Environmental Engineering, April 2008 Howard University, Washington D.C., Department of Civil and Environmental Engineering, March 2008 Lamar University, Beaumont, TX, Department of Chemical Engineering, February 2008 Duke University, Durham, NC, Department of Civil and Environmental Engineering, October 2007 University of North Carolina, Chapel Hill, NC, Department of Environmental Sciences and Engineering, October 2007 Colorado School of Mines, Golden, CO, Department of Environmental Science & Engineering, September 2007 Korea University, Seoul, Department of Civil, Architectural, and Environmental Engineering, South Korea, August 2007 Montana State University, Bozeman, MT, Center for Biofilm Engineering, April 2007 Johns Hopkins University, Baltimore, MD, Center for Environmental and Applied Fluid Mechanics, February 2007 Johns Hopkins University, Baltimore, MD, Department of Geography and Environmental Engineering, February 2007 Washington University at St. Louis, MO, April 2006 Michigan State University, East Lansing, MI, April 2006 Purdue University, West Lafayette, IN, February 2006 Clarkson University, Potsdam, NY, January 2006 Texas A&M University, College Station, TX, October 2004 Purdue University, West Lafayette, IN, January 2004 University of Minnesota, Minneapolis, MN, November 2003 Rice University, Houston, TX, November 2000 Johns Hopkins University, Baltimore, MD, April 1999 University of North Carolina, Chapel Hill, April 1999 University of Cincinnati, Cincinnati, OH, February, 1999 University of Houston, Houston, TX, September 1998 University of California at Los Angeles, Los Angeles, CA, November 1997 Anna University, Madras, India, September 1997 Indian Institute of Technology, Bombay, India, September 1997 The Johns Hopkins University, Baltimore, MD, February 1996 Howard University, Washington DC, October 1995 North Carolina State University, Raleigh, NC, March 1995 University of California at Berkeley, Berkeley, CA, March 1994 Rice University, Houston, TX, November 1993

University of Houston Cullen College of Engineering