Nancy Patania Brown, P.E.

Transcription

1 Water Quality & Treatment Solutions, Inc. An Environmental Engineering & Science Consulting Company EDUCATION: Nancy Patania Brown, P.E East Terra Alta Blvd. Tucson, AZ Tel: (818) , ext. 105 Fax: (818) URL: M.S., Civil Engineering, University of Arizona 1987 B.S., Civil Engineering, University of Arizona 1985 REGISTRATION: California, Professional Engineer, Civil, No. C47702, 1991 PROFESSIONAL EXPERIENCE: Water Quality & Treatment Solutions, Inc Present: Principal Engineer MWH Americas, Inc : Various positions in the Applied Research Department and Municipal Technology Group SUMMARY: Nancy Patania Brown joined WQTS in 2005 as a Principal Engineer. She received B.S. and M.S. degrees in Civil Engineering from the University of Arizona. Nancy brings to WQTS 22 years of experience in water quality evaluations, bench and pilot testing, and full-scale plant assessments for treatment effectiveness and regulatory compliance. Before joining WQTS, Nancy worked with MWH, a global environmental engineering firm, in their Applied Research and Municipal Technologies Departments. Nancy has managed and implemented sampling programs, bench-scale testing programs and pilot studies of source waters around the United States and internationally. Much of her work has focused on water quality and treatment for control of disinfection by-products (DBPs) and removal of particulate material by filtration, including Cryptosporidium, Giardia and surrogate parameters. She has investigated both inactivation and removal of microorganisms in water treatment, from Cryptosporidium to emerging pathogens such as Adenovirus. Nancy has managed a wide variety of projects for WQTS, including a study investigating CT compliance calculation methods for ozone contactors, a study of autotrophic biological treatment for nitrate and perchlorate removal from groundwater used as a drinking water supply, and a study assessing ultra-light media for reducing backwash volume in the coagulation-filtration process for arsenic removal. She has participated in and managed numerous projects investigating water treatment issues as diverse as membrane technology, taste and odor removal, and disinfection compliance for unfiltered water supplies. Since her involvement in a groundbreaking sampling program of DBPs produced by 35 utilities around the U.S. in the late 1980s, Nancy has developed wide-ranging experience in DBP formation and regulatory compliance issues for water providers all over the country, including emerging DBP compounds. Nancy is also a certified facilitator of Bottom Line Innovation workshops, a creative problem-solving technique used for all aspects of environmental engineering practice, from clients' technical issues to internal planning processes.

2 Nancy Patania Brown, P.E. Page 2 of 6 EXPERIENCE: Nancy is Project Manager for a three-year research program investigating biological treatment of drinking water. The City of Pasadena, a member agency of the Metropolitan Water District of Southern California, has groundwater wells contaminated with perchlorate and nitrate. Typical treatment processes such as reverse osmosis and ion exchange generate brine waste streams that require disposal. WQTS developed and conducted the research program investigating autotrophic, hydrogen-based biological treatment for perchlorate and nitrate removal from groundwater used as a drinking water supply. The program included an extensive literature review, bench-scale testing, and an 8-month pilot study of hydrogenbased autotrophic biological treatment for removal of perchlorate and nitrate. The by-products of the biological process are harmless nitrogen gas, chloride ion and water. The testing was conducted at one of the City s wells using a packed column reactor designed and constructed by WQTS, and a membrane biofilm reactor. The study demonstrated that the packed column reactor was capable of effective and reliable nitrate and perchlorate removal. The study was funded through a grant from the USEPA to Metropolitan. Nancy is Project Manager for a multi-year study of ultra-light filter media for reducing backwash volume produced by the coagulation/filtration (C/F) process used for arsenic removal from groundwater. Many small water suppliers require arsenic removal treatment for drinking water wells. The C/F process is an effective non-proprietary treatment applicable to small systems. However, the sand/anthracite media used in typical pressure filters requires a high upflow velocity to fluidize the bed for backwash. The resulting high backwash volumes require clarification and disposal, which add to the cost and complexity of the treatment system. WQTS was awarded funding through the Water Research Foundation to pilot test an ultra-light filter media for the C/F process. The testing indicated that the ultra-light media produced effective arsenic removal with a ferric coagulant. Most importantly, the volume required for effective backwash of the ultra-light media was approximately 20% of the volume required for backwashing sand/anthracite media. Nancy managed a Water Research Foundation study of disinfection CT calculations for ozone contactors. The method of calculating the CT product through an ozone contactor is a critical concern for utilities using ozone to meet the disinfection requirements of the Surface Water Treatment Rule (SWTR) and Long-Term 2 Enhanced SWTR. The typical CT calculation methods (the C effluent T 10 method and the Integrated Residual method), while relatively simple and easy to use, contain a high degree of conservatism which translates into higher-than-necessary ozone doses and resulting higher-thannecessary bromate formation. Nancy was Project Manager for the tailored-collaboration project developed by WQTS with four ozonating utilities around the U.S. that sought to reduce or eliminate the conservatism embedded in the commonly-used CT calculation methods by utilizing alternative methods, including the Segregated Flow Analysis (SFA) method. The study involved bench- and pilot-scale disinfection testing and computer modeling to demonstrate that of the four CT calculation methods evaluated, the SFA method most accurately predicted the actual disinfection of Bacillus subtili spores in a multi-chamber under/over ozone contactor. Nancy managed a Blue Ribbon Panel of world-renowned independent water quality experts for a major beverage manufacturer based in the U.S. She coordinated communications, compiled and edited technical reports, and managed workshops and meetings for the international panel of experts from academia, regulatory agencies and water suppliers. Nancy was Project Manager for a comprehensive study of conversion from free chlorine to chloramine final disinfection for the Los Angeles Department of Water and Power. The study evaluated the impacts of chloramine conversion and compliance with the D/DBP Rule on all system components, including source waters, treatment, open distribution reservoirs, pipes, closed reservoirs and tanks. Major challenges for the project included the presence of ten large open finished water reservoirs, the impacts of chloramination on reservoir water quality and aesthetic quality, and bromate control at a 600-mgd ozone/direct filtration facility.

3 Nancy Patania Brown, P.E. Page 3 of 6 Nancy was a member of the Joint Action Group investigating the 1999 occurrence of Cryptosporidium for Sydney (Australia) Water. The Joint Action Group brought expertise in worldwide best practices to their evaluation of the causes and mitigation of the microbial contamination event, including watersheds, treatment plants, the distribution network, sample collection, laboratory analysis, data handling, and microbiological issues. She also developed and managed the testing program for Sydney Water s prototype treatment plant, which included Cryptosporidium seeding experiments to evaluate filtration performance. Nancy managed a comprehensive pilot study of ozonation, direct filtration and biological filtration for the Greater Vancouver (BC) Water District. The project produced design criteria for a 950 ML/day (250 MGD) filtration plant for one of Vancouver s three unfiltered surface water supplies. Nancy managed a one-year pilot study for the Greater Victoria (BC) Water District of disinfection alternatives including ozone, chlorine and chloramines. She then managed MWH s participation in the predesign of a 500 ML/day (130 MGD) ozonation plant for the District. Nancy managed Seattle Public Utility s Surface Water Treatment Rule Compliance Project. Elements of the project included a one-year ozonation and filtration pilot study for the Cedar River, an extensive water quality and limnological evaluation of an 11 billion gallon finished water storage reservoir, an economic evaluation of process alternatives, a source and finished water monitoring program for Giardia and Cryptosporidium, and a comprehensive distribution system water quality and operations evaluation relative to Total Coliform Rule compliance. ORGANIZATIONS: American Water Works Association Member, Biological Drinking Water Treatment Committee PUBLICATIONS: Patania Brown, N., I. Najm, K. Gramith, S. Liang, B. Boman and I. Babbitt Pilot Testing of a Hydrogen-Based Autotrophic Packed Column Reactor for Nitrate and Perchlorate Removal from Southern California Groundwater. Proceedings, AWWA Annual Conference, San Diego, CA (June 2009). Patania Brown, N., K. Schwab, D. Huffman, C. Mysore, J. Jacangelo Impact of Solids Deposition Layer on Virus Removal by Hollow-Fiber Membrane Filtration. Proceedings, AWWA Membrane Technology Conference, Phoenix, AZ (March 2005). Patania Brown, N., R. Cass, J. Marcinko, J. Chacon Chemical Process Options for Multi-Objective Treatment of a Surface Water. Proceedings, AWWA Water Quality Technology Conference, Seattle, WA (November 2002). Patania Brown, N., J. Jacangelo, C. Haas, C. Gerba Assessment of Existing Disinfection Practices for Inactivation of Emerging Pathogens. Proceedings, AWWA Annual Conference, New Orleans, LA (June 2002). Patania, N.L., P. Mazounie, F. Bernazeau, G. Maclean and P. Alla Removal of Cryptosporidium by Contact Filtration: The Sydney Experience. Proceedings, AWWA Annual Conference, Chicago, IL (June 1999). Patania, N.L., J.G. Jacangelo, L. Cummings, and A.P. Wilczak "Removal of Cryptosporidium, Giardia and Particles by Granular Media Filtration in Pilot Studies." Proceedings, AWWA Annual Conference, Anaheim, CA (June 1995).

4 Nancy Patania Brown, P.E. Page 4 of 6 Patania, N.L., R.C. Menard, R.G. Donner, S.F. Donnelly, and J.E. Martin "Giardia and Cryptosporidium in the Cedar River Watershed: Findings of an Intensive Monitoring Program." Presented at the AWWA Annual Conference, New York City, NY (June 1994). Najm, I.N., N.L. Patania, J.G. Jacangelo, and S.W. Krasner "Evaluating Surrogates for Disinfection By-Products." Journal AWWA, 86:6: Patania, N.L "Removing Microbial Contaminants by Granular Media Filtration." Presented at the AWWA Pacific Northwest Section Annual Conference, Spokane, WA (May 1994). Cummings, L., N.L. Patania, and L.M. Obermeyer "Giardia and Cryptosporidium Pilot-Scale Seeding Methodology." Presented at the AWWA Water Quality Technology Conference, Miami, FL (November 1993). Hilmoe, D.J. and N.L. Patania "Treatment of Seattle's High Quality Tolt Supply to Meet the SWTR and the Anticipated DBP Rule." Presented at the AWWA Annual Conference, San Antonio, TX (June 1993). Patania, N.L., J.G. Jacangelo, L.M. Obermeyer and L. Cummings "Evaluating Removal of Giardia Cysts, Cryptosporidium Oocysts and Particles by Granular Media Filtration in Pilot-Scale Microbial Seeding Studies." Presented at the AWWA Annual Conference, San Antonio, TX (June 1993). Patania, N.L., I.N. Najm, J.G. Jacangelo, and S.W. Krasner "Bench-Scale Evaluation of the Impact of Ozonation and Coagulation on Disinfection By-Product Formation in Eighteen Waters." Proceedings, AWWA Annual Conference, Vancouver, BC (June 1992). Obermeyer, L.M., N.L. Patania, and M.F. Knudson "Treatment Optimization Trade-offs Resulting From New Water Quality Regulations." Proceedings, AWWA Annual Conference, Vancouver, BC (June 1992). Patania, N.L "Disinfection By-Products: Focus on Northwest Drinking Waters." Presented at the AWWA Pacific Northwest Section Annual Conference, Portland, OR (May 1992). Dharmarajah, H., N.L. Patania, and J.G. Jacangelo "Empirical Modeling of Chlorine and Chloramine Residual Decay." Proceedings, AWWA Annual Conference, Philadelphia, PA (June 1991). Laîné, J.M., J.G. Jacangelo, N.L. Patania, W. Booe, and J. Mallevialle "Evaluation of Ultrafiltration Membrane Fouling and Parameters for Its Control." Proceedings, AWWA Specialty Conference on Membrane Technology and Its Application in the Water Industry, Orlando, FL (March 1991). Patania, N.L., E.M. Aieta, and G.W. Dunkelberger "Control of Disinfection By-Products in Membrane-Treated Drinking Waters." Presented at the AWWA Specialty Conference on Membrane Technology and Its Application in the Water Industry, Orlando, FL (March 1991). Patania, N.L., I.N. Najm, J.G. Jacangelo and S.W. Krasner "Bench-Scale Evaluation of Ozonation By-Products in Eighteen Raw Waters." Presented at the AWWA Water Quality Technology Conference, Orlando, FL (November 1991). Najm, I.N., N.L. Patania, J.G. Jacangelo and S.W. Krasner "Development and Implementation of a Bench-Scale Protocol for Evaluating DBP Precursor Removal by Coagulation." Presented at the AWWA Water Quality Technology Conference, Orlando, FL (November 1991).

5 Nancy Patania Brown, P.E. Page 5 of 6 Laîné, J.M., J.G. Jacangelo, N.L. Patania, W. Booe, and J. Mallevialle "Impacts of Water Quality on the Feasibility of Ultrafiltration as a Treatment Process." Presented at the AWWA Annual Conference, Philadelphia, PA (June 1991). Patania, N.L., I.N. Najm, J. G. Jacangelo, and S.W. Krasner "Factors Influencing Halogenated Disinfection By-Product Formation in Eight Waters." Presented at the AWWA Annual Conference, Philadelphia, PA (June 1991). Patania, N.L., J.G. Jacangelo, E.M. Aieta, and S.W. Krasner "Granular Activated Carbon for Disinfection By-Product Precursor Removal." Presented at the AWWA Annual Conference, Cincinnati, OH (June 1990). Jacangelo, J.G., N.L. Patania, E.M. Aieta, and S.W. Krasner "Impact of Coagulant Dose on Control of Disinfection By-Products: Full Scale Studies." Presented at the AWWA Annual Conference, Cincinnati, OH (June 1990). Krasner, S.W., K.M. Reagan, M.J. McGuire, J.G. Jacangelo, N.L. Patania, and E.M. Aieta "Relationships between Disinfection By-Products and Water Quality Parameters: Implications for Formation and Control." Presented at the AWWA Annual Conference, Cincinnati, OH (June 1990). McGuire, M.J., C.H. Tate, and N.L. Patania "Ozone/Chloramines and Activated Carbon to Control Disinfection By-Products." Journal of Water Supply Research & Technology (AQUA), 39:1, Patania, N.L., S.W. Krasner, J.G. Jacangelo and K.M. Reagan "Keys to Successful Water Quality Surveys: Logistics and Laboratory Considerations." Proceedings, AWWA Water Quality Technology Conference, Philadelphia, PA (November 1989). Reagan, K.M., J.G. Jacangelo, N.L. Patania, E.M. Aieta, S.W. Krasner and M.J. McGuire "Approaches to Exploratory Analysis of Disinfection By-Products Data." Proceedings, AWWA Water Quality Technology Conference, Philadelphia, PA (November 1989). Patania, N.L., D.W. Ferguson, E.M. Aieta, R.H. Giles and W.H. Glaze "Advanced Oxidation Processes for Treating Groundwater Contaminated with TCE and PCE: Effects of Lime Softening." Presented at the AWWA Annual Conference, Los Angeles, CA (June 1989). Jacangelo, J.G., N.L. Patania and R.R. Trussell "Membranes in Water Treatment." Civil Engineering, 59:5. Beaudet, B.A., N.L. Patania, E.M. Aieta, J.E. Singley, R.R. Trussell and T.O. Mardam "Use of Advanced Oxidation Processes for Control of Color in Groundwater." Proceedings, International Ozone Association 2nd International Conference on U.V. + Ozone in the Treatment of Water and Other Liquids, Berlin, Federal Republic of Germany (April 1989). Jacangelo, J.G., N.L. Patania, K.M. Reagan, E.M. Aieta, S.W. Krasner and M.J. McGuire "Ozonation: Assessing Its Role in the Formation and Control of Disinfection By-products." Journal AWWA, 81:8. Krasner, S.K., M.J. McGuire, J.G. Jacangelo, N.L. Patania, K.M. Reagan and E.M. Aieta "The Occurrence and Control of Disinfection By-Products in Drinking Water in a Nationwide Study." Journal AWWA, 81:8. Beaudet, B.A., Mardam, T.O. and N.L. Patania "Ozone Pilot Study at Palm Beach County Water Utilities Department." Presented at the International Ozone Association Conference, Myrtle Beach, South Carolina (December 1988).

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