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Records 1 to 25 of 78 records from author Daniel Williams

2023
Gomez-Alvarez, V., H. Ryu, M. Tang, M. McNeely, C. Muhlen, M. Urbanic, D. Williams, D. Lytle, AND L. Boczek. Assessing residential activity in a home plumbing system simulator: monitoring the occurrence and relationship of major opportunistic pathogens and phagocytic amoebas. Frontiers in Microbiology. Frontiers, Lausanne, Switzerland, 14:1260460, (2023). https://doi.org/10.3389/fmicb.2023.1260460
Keithley, A., D. Lytle, D. Williams, AND N. Dugan. Biological Treatment of Groundwater for Small Systems. Tribal Science Council, Cincinnati, OH, July 25 - 27, 2023.
Keithley, A., H. Ryu, V. Gomez-Alvarez, S. Harmon, C. Bennett-Stamper, D. Williams, AND D. Lytle. Comprehensive characterization of aerobic groundwater biotreatment media. WATER RESEARCH. Elsevier Science Ltd, New York, NY, 230:119587, (2023). https://doi.org/10.1016/j.watres.2023.119587
Keithley, A., V. Gomez-Alvarez, D. Williams, H. Ryu, AND D. Lytle. Depth profiles of biological aerated contactors: Characterizing microbial activity treating reduced contaminants. Journal of Water Process Engineering. Elsevier B.V., Amsterdam, Netherlands, 56:104360, (2023). https://doi.org/10.1016/j.jwpe.2023.104360
McNeely, M., L. Boczek, V. Gomez-Alvarez, M. Tang, M. Urbanic, C. Muhlen, D. Williams, D. Lytle, AND H. Ryu. Detection of opportunistic premise plumbing pathogens using qPCR to assess the efficacy of water treatment methods in a model home. WQTC 2023, Dallas, TX, November 05 - 09, 2023.
Williams, D. AND P. Jordan. Low-cost solar powered control systems for Non-PRASA drinking water treatment systems​ ​. 14th CECIA Biennial Symposium, Bayamo'n, PUERTO RICO, February 16 - 18, 2023.
Keithley, A., P. Woodruff, D. Williams, N. Dugan, AND D. Lytle. Nitrogen-Sparging Assisted Anoxic Biological Drinking Water Treatment System. AWWA Water Science. John Wiley & Sons, Inc., Hoboken, NJ, 5(5):e1359, (2023). https://doi.org/10.1002/aws2.1359
Lytle, D., A. Keithley, D. Williams, AND H. Chait. Removal of Strontium by Ion Exchange and Lime Softening at Eight Drinking Water Treatment Plants. Environmental Science: Water Research & Technology. Royal Society of Chemistry, Cambridge, Uk, 9(8):2140-2151, (2023). https://doi.org/10.1039/D2EW00987K
LaDue, R., D. Williams, C. Devine, C. White, AND D. Lytle. Test Methodologies for Assessing the Impact of Water Quality Changes on Corrosion and Corrosion Control Treatment Strategies. 20th Annual EPA Drinking Water Workshop: Small System Challenges and Solutions, Covington, KY, September 11 - 14, 2023.
Oh, Y., H. Kim, L. Boczek, H. Woo, D. Williams, AND H. Ryu. Waterborne pathogen inactivation at a point-of-use device: A proof-of-concept study using a UV-LEDs integrated showerhead. Presented at WQTC 23, Dallas, TX, November 05 - 09, 2023.
2022
Crockett, E., M. Tang, D. Lytle, D. Williams, AND C. Muhlen. Accumulation and Release of Contaminants from Old Cast Iron Pipe Section. Presented at Small Systems Workshop, Cincinnati, OH, August 29 - September 01, 2022.
McNeely, M., L. Boczek, V. Gomez-Alvarez, M. Tang, C. Muhlen, D. Williams, D. Lytle, AND H. Ryu. Characterization of Microbial Water Quality Using Molecular Technology in Model Home Plumbing System. 19th Annual EPA Drinking Water Workshop: Small System Challenges and Solutions, Cincinnati, OH, August 29 - September 01, 2022.
Boczek, L., M. Tang, M. McNeely, V. Gomez-Alvarez, C. Muhlen, D. Williams, D. Lytle, H. Ryu, AND J. Wright. Characterization of microbial water quality using molecular technology and its applicability for assessing treatment performance in a building model home plumbing system. WQTC 2022 Conference, Cincinnati, OH, November 13 - 17, 2022.
Woodruff, P., A. Keithley, D. Williams, N. Dugan, AND D. Lytle. Comparing Nitrate Removal Efficiency Between Gravel and PVC Biocarriers. EPA Drinking Water Workshop, Covington, KY, August 29 - September 01, 2022.
Keithley, A., D. Williams, D. Lytle, H. Ryu, V. Gomez-Alvarez, S. Harmon, AND C. Bennett-Stamper. Depth profiles of biological aerated contactors - characterizing microbial activity treating reduced inorganic contaminants. Presented at Water Quality and Technology Conference, cincinnati, OH, November 13 - 17, 2022.
Tang, M., L. Boczek, H. Ryu, C. Muhlen, D. Williams, D. Lytle, M. Urbanic, P. Woodruff, M. McNeely, M. Pinelli, E. Crockett, AND C. Formal. Evaluating microbial water quality changes in response to residential activities in a model home. 2022 AWWA Water Quality Technology Conference, Cincinnati, OH, November 13 - 17, 2022.
Achtemeier, R., M. Tang, H. Ryu, L. Boczek, D. Williams, C. Muhlen, M. Urbanic, A. Paul, M. Pinelli, E. Crockett, P. Woodruff, AND D. Lytle. Full Scale Home Plumbing System Pilot Plant. Small Systems Drinking Water Workshop, Covington, KY, August 29 - September 01, 2022.
Williams, D. AND P. Jordan. Low-cost solar powered control systems in non-PRASA drinking water treatment systems. Small Drinking Water Systems Webinar, NA, OH, February 22, 2022.
Woodruff, P., A. Keithley, D. Williams, N. Dugan, AND D. Lytle. N2-sparged denitrification reactor promising for small systems. Presented at Water Quality and Technology Conference, cincinnati, OH, November 13 - 17, 2022.
Sinha, R., D. Williams, AND P. Jordan. Solar-Powered Turbidity Measurement and Control of Filtration Systems in El Real and Mulas Jagual Non-PRASA Communities in Puerto Rico. 2022 World Environmental & Water Resource Congress, Atlanta, GA, June 05 - 08, 2022.
2021
Dore, E., C. Formal, C. Muhlen, D. Williams, S. Harmon, M. Pham, S. Triantafyllidou, AND D. Lytle. Effectiveness of point-of-use and pitcher filters at removing lead phosphate nanoparticles from drinking water. WATER RESEARCH. Elsevier Science Ltd, New York, NY, 201:117285, (2021). https://doi.org/10.1016/j.watres.2021.117285
Sinha, R., C. Patterson, D. Williams, C. Maldonado, G. Ramirez, M. Crespo, AND H. Minnigh. Filtration Challenges and Implementation of Solar-Powered Turbidity Control and Backwash Systems to Optimize Drinking Water Treatment and Distribution in Non-PRASA Communities in Puerto Rico. Environmental and Water Resources Institute (EWRI) World Water Congress 2021, Milwaukee, WI, June 07 - 11, 2021.
Keithley, A., D. Williams, N. Dugan, AND D. Lytle. Innovative Biological Treatment System for Nitrate Removal. Presented at ACE21 - Annual Conference and Exhibition, Cincinnati, OH, June 14 - 17, 2021.
Williams, D. AND D. Lytle. Piloting Conventional Treatment Region 9 Advanced Disinfection Byproducts Training. Presented at Region 9 Advance Disinfection Byproducts Training, NA, CA, February 16 - 18, 2021.
2020
Lytle, D., D. Williams, C. Muhlen, M. Pham, E. Riddick, AND A. Keithley. Biological Treatment Simultaneously Addresses Multiple Contaminants: Ammonia, Arsenic, Iron and Manganese. AWWA International Symposium on Biological Treatment, Atlanta, Georgia, February 12 - 13, 2020.