Michael C. Dodd
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Assistant Professor 201 More Hall, Box 352700
Personal Webpage
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EDUCATION
Ph.D., Environmental Chemistry (2008) - Swiss Federal Institute of Technology-Zurich (ETH-Zurich)
M.S., Environmental Engineering (2003), Georgia Institute of Technology
B.S., Civil Engineering (2001), Georgia Institute of Technology
RESEARCH INTERESTS
Mechanistic investigations and modeling of organic and inorganic redox chemistry in natural and engineered environmental systems, particularly with regard to active chlorine, ozone, and reactive oxygen species
Integration of toxicological screening, risk assessment, and mechanistic research as related to environmental redox reactions and contaminant transformation products or by-products
Chemical oxidation processes in disinfection and their corresponding role in chemical and structural changes in cell components and nucleic acids
Characterizing and modeling the influence of abiotic redox processes on structural evolution of dissolved organic matter (DOM), as related to changes in its associated physical, chemical, and biological properties, within natural and engineered ecosystems
Characterizing the role of DOM in pollutant transformation and inactivation of pathogenic organisms by photochemically-generated reactive oxygen species and other transients in sunlit surface waters
Monitoring the influence of anthropogenic impacts on DOM quality in wastewater effluent-dominated surface water systems within heavily populated regions
Development and application of innovative chemical and/or physical-chemical techniques for simple, cost-effective inactivation or removal of pathogens during wastewater and drinking water treatment within disadvantaged societies and disaster-relief scenarios
PUBLICATIONS
Selected Recent Journal Publications
Dodd, M. C.; Rentsch, D.; Singer, H. P.; Kohler, H.-P. E.; von Gunten, U. Transformation of beta-lactam antibacterial agents during aqueous ozonation: Reaction pathways and quantitative bioassay-directed characterization of biologically-active oxidation products. In preparation
Dodd, M. C.; Paul, T.; von Gunten, U.; Strathmann, T. J. UV and visible-light photolytic and photocatalytic decomposition of ciprofloxacin in water: Residual antibacterial activity of degradation products. In preparation.
Dodd, M. C.; Kohler, H.-P. E.; von Gunten, U. Oxidation of antibacterial compounds by ozone and hydroxyl radical: Elimination of biological activity during aqueous ozonation processes. Submitted for publication in Environmental Science and Technology.
Dodd, M. C.; Zuleeg, S.; von Gunten, U.; Pronk, W. Ozonation of source-separated urine for resource recovery and waste minimization: Process modeling, reaction chemistry, and operational considerations. Environmental Science and Technology, Accepted for publication.
Suarez, S.; Dodd, M. C.; Omil, F.; von Gunten, U. Kinetics of triclosan oxidation by aqueous ozone and consequent loss of antibacterial activity: relevance to municipal wastewater ozonation. Water Research, 2007, 41(12), 2481-2490
Dodd, M. C.; Huang, C.-H. Aqueous chlorination of the antibacterial agent trimethoprim: Reaction kinetics and pathways. Water Research 2007, 41(3), 647-655.
Dodd, M. C., Vu, N. D.; Ammann, A.; Le, V. C.; Kiessner, R.; Berg, M.; Pham, H. V.; Cao, T. H.; von Gunten, U. Kinetics and mechanistic aspects of As(III) oxidation by aqueous chlorine, chloramines, and ozone. Environmental Science and Technology 2006, 40(10), 3285-3292.
Dodd, M. C.; Buffle, M.-O.; von Gunten, U. Oxidation of antibacterial molecules by aqueous ozone: Moiety-specific reaction kinetics and application to ozone-based wastewater treatment. Environmental Science and Technology 2006, 40(6), 1969-1977.
Dodd, M. C.; Shah, A. D.; von Gunten, U.; Huang, C.-H. Interactions of fluoroquinolone antibacterial agents with aqueous chlorine: Reaction kinetics, mechanisms, and transformation pathways. Environmental Science and Technology 2005, 39(18), 7065-7076.
Dodd, M. C.; Huang, C.-H. Transformation of the antibacterial agent sulfamethoxazole in reactions with chlorine: Kinetics, mechanisms, and pathways. Environmental Science and Technology 2004, 38(21), 5607-5615.
Book Chapters
Huang, C.-H., Dodd, M. C., Shah, A. D. “Reactions of Antibacterial Agents with Aqueous Chlorine under Relevant Water Treatment Conditions”, In: Fate of Pharmaceuticals in the Environment and Water Treatment Systems, D. Aga, Ed.; CRC Press, Taylor & Francis Books, 2007.
Presentations and Conference Proceedings
Dodd, M. C.; Kohler, H.-P. E.; Rentsch, D.; von Gunten, U. “Wastewater ozonation as a barrier to conveyance of chemical determinants of antibacterial resistance through municipal water (re)use cycles” 5th International Water Association (IWA) Leading-Edge Conference on Water and Wastewater Technologies, Zurich, Switzerland. June 1-4, 2008
Dodd, M. C.; von Gunten, U. “Application of ozone for micropollutant oxidation during municipal wastewater treatment: An overview of reaction chemistry, process fundamentals, and practical results”, Invited lecture at the 3rd Workshop of the Marie Curie Host Fellowship Project AQUAbase - RWTH Aachen University, Aachen, Germany. November 27-28, 2007
Suarez, S.; Dodd, M. C.; Omil, F.; Lema, J. M. “Kinetics of fluoxetine and triclosan oxidation during municipal wastewater ozonation”, proceedings of the 6th European Congress of Chemical Engineering, Copenhagen, Denmark. September 16-21, 2007
Dodd, M. C.; Kohler, H.-P. E.; von Gunten, U. “Oxidation of antibacterial and biocidal compounds by ozone and hydroxyl radicals: Elimination of biological activity during aqueous ozonation processes”, extended abstracts of MICROPOL & ECOHAZARD 2007 - the 5th IWA Specialised Conference on Assessment and Control of Micropollutants / Hazardous Substances in Water, Frankfurt am Main, Germany. June 17-20, 2007
Dodd, M. C.; Zuleeg, S.; Pronk, W. von Gunten, U. “Pre-treatment of source-separated urine by ozonation: feasibility and quantitative modeling of mass-transfer limited micropollutant depletion by O3 and •OH on the basis of fundamental bimolecular reaction kinetics”, MICROPOL & ECOHAZARD 2007 - the 5th IWA Specialised Conference on Assessment and Control of Micropollutants / Hazardous Substances in Water, Frankfurt am Main, Germany. June 17-20, 2007 (poster)
Dodd, M. C.; Suarez, S.; Kohler, H.-P. E.; von Gunten, U. “Moiety-specific oxidation reactions and consequent changes in biochemical activities of antibacterial compounds during aqueous ozonation processes”, extended abstracts of the 233rd American Chemical Society (ACS) National Meeting, Chicago, IL. March 25-29, 2007
Dodd, M. C.; Vu, N. D.; Le, V. C.; Berg, M.; von Gunten, U. “As(III) oxidation by chlorine and ozone: Using kinetics measurements to model reactions during treatment of natural waters”, proceedings of the American Water Works Association (AWWA) Water Quality Technology Conference, Denver, CO. November 5-9, 2006
Huang, C.-H.; Dodd, M. C.; Shah, A. D.; von Gunten, U.; Kim, J.-H. “Reactions of antibacterial agents with aqueous chlorine under water treatment conditions”, Gordon Research Conference on Drinking Water Disinfection By-Products, Mount Holyoke College, South Hadley, MA. August 13-18, 2006 (poster)
Dodd, M. C.; Vu, N. D.; Ammann, A.; Le, V. C.; Kissner, R.; Berg, M.; von Gunten, U. “Kinetics and mechanistic aspects of As(III) oxidation by aqueous chlorine, chloramines, and ozone: Relevance to drinking water treatment”, Gordon Research Conference on Environmental Sciences: Water, Holderness School, Plymouth, NH. June 25-30, 2006 (poster)
Dodd, M. C.; Kohler, H.-P. E.; von Gunten, U. “Moiety-specific oxidation of antibacterial molecules by aqueous ozone: Reaction kinetics, elimination of biochemical activity, and implications for municipal wastewater ozonation”, Gordon Research Conference on Environmental Sciences: Water, Holderness School, Plymouth, NH. June 25-30, 2006 (poster)
Dodd, M. C.; von Gunten, U. “Selective oxidation of antibacterial molecules during ozonation of municipal wastewater”, extended abstracts of the International Ozone Association (IOA) 17th World Ozone Congress, Strasbourg, France. August 22-25, 2005
Dodd, M. C.; von Gunten, U. “Oxidation of key functional groups in prominent clinical antibacterial agents: Potential for elimination of antibacterial activity via treatment with ozone”, extended abstracts of the 228th American Chemical Society (ACS) National Meeting, Philadelphia, PA. August 23-27, 2004.
Dodd, M. C.; Huang, C.-H. “Chemical oxidation of aquatic antibiotic microcontaminants by free and combined chlorine”, proceedings of the American Water Works Association (AWWA) Water Quality Technology Conference, Philadelphia, PA. November 2-5, 2003.