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Treatment Technology Evaluation Branch

Branch Information

Darren Lytle
Acting Branch Chief

Phone: 513-569-7432
Email: lytle.darren@epa.gov

The Treatment Technology Evaluation Branch (TTEB) is part of the Water Supply and Water Resources Division (WSWRD) of the Office of Research and Development's National Risk Management Research Laboratory's (NRMRL). TTEB addresses areas of investigation that align with NRMRL's mission and the overarching strategic plan of the Office of Research and Development. Our interdisciplinary team of scientists and engineers provide technical support to EPA's Office of Water, EPA regional offices, state governments, communities, and homeowners. Staff members also engage in collaborative research with water utilities, consultants, and academic institutions.

Our Focus

TTEB conducts fundamental and novel research to investigate, develop, and demonstrate drinking water treatment strategies. It is our mission to advance the overall knowledge base of the drinking water industry and produce a scientific basis for innovative solutions to manage issues facing public health and the environment. TTEB researchers conduct bench, pilot, and full-scale investigations to determine best available technologies and treatment policies for a variety of contaminants. This research is conducted in order to address issues such as regulatory compliance, distribution system corrosion, microbiological contamination, and challenges presented by emerging contaminants. It is also our goal to examine the feasibility of existing and emerging technologies. Although our work is meant to benefit the industry as a whole, recent years have focused on techniques to assist small and medium sized systems and utilities in reaching compliance with current laws and regulations. These systems often are limited to certain treatment methods due to cost or other factors, so TTEB work focuses on cost-efficient and affordable treatment strategies.

The cross-disciplinary team of scientists, engineers, and technicians engages in a problem-solving approach to drinking water treatment technology, and conducts research that produces a sound scientific basis for innovative solutions that are increasingly more efficient and cost-effective. Information discovered by TTEB research supports the development of EPA regulations and rules, provides general drinking water advice and compliance with past regulations, and often supports regulatory decisions. Thus, much of the research is closely tied to recent rules. However, it is important to consider all treatment technologies. These systems often are limited to certain treatment methods due to cost or other factors, so TTEB work focuses on cost-efficient and affordable treatment strategies.

Key research areas:

TTEB researchers aim to provide results for stakeholders, such as utilities and state primacy agencies, in order to better inform decision makers on water management issues.  We strive to develop planning tools that will incorporate new and innovative ideas for sustaining the nation's water resources. To conduct our research, we are centered in and utilize EPA's Andrew W. Breidenbach Environmental Research Center (AWBERC), a highly specialized water research facility located in Cincinnati, Ohio. Within AWBERC, WSWRD has recently created the Advanced Materials and Solids Analysis Research Core (AMSARC), which is lead by TTEB. AMSARC is an informally recognized collection of state-of-the-art materials and solids analysis equipment that will assist the EPA, ORD laboratories, and other Agency laboratories in their mission to conduct research on ways to prevent pollution and protect human health and the environment.

Research Projects

Title
Research Area (s)
Principal Investigator
Reduction of Nitrate through the Use of Nitrate Reductase (YNaR1) for the SmartChem Discrete Autoanalyzer Treatment Technologies Keith Kelty
Removal of Perchlorate, Pesticides, Endocrine Disrupting Chemicals (EDCs), and Pharmaceuticals and Personal Care Products as Pollutants (PPCPs) from Drinking Water using a Sequential Anaerobic and Aerobic Granular Media Biological Treatment Process Filtration and Contaminant Removal; Emerging Contaminants; Treatment Technologies Nicholas Dugan
Critical Evaluation of Computational Fluid Dynamics Modeling Approaches to Ozone Contractor Design Treatment Technologies Michael Elovitz
Halonitromethane Formation During Chlorination: Influence of DOM Origin, Bromide, Nitrite and Pre-Ozonation Treatment Technologies Michael Elovitz
Investigating Mixing in Baffled Ozone Contactors Using 3-D Laser-Induced Fluorescence and Reactive Transport Model Treatment Technologies Michael Elovitz
Characterization of Chlorination Transformation Products of Selected Pesticides Treatment Technologies Karen Schrantz
Assessment of Nitrification in Distribution Systems of Waters with Elevated Ammonia Levels Distribution Systems Darren Lytle
Desorption of Arsenic from Pipe/Hydrant Solids Arsenic; Treatment Technologies Darren Lytle
The Effect of Oxidant and Redox Potential on Metal Corrosion in Drinking Water Corrosion; Treatment Technologies Darren Lytle
The Effect of Water Chemistry on the Release of Iron from Pipe Walls Corrosion; Treatment Technologies Darren Lytle
The Effect of Water Chemistry on the Removal of Arsenic from Drinking Water During Iron Removal Treatment Arsenic; Treatment Technologies Darren Lytle
Impact of Water Chemistry on the Localized Corrosion of Copper Pitting Corrosion; Aging Water Infrastructure Darren Lytle
Relationship Between Redox Potential, Disinfectant, and pH in Drinking Water Treatment Technologies Darren Lytle
The Role of Microbial Processes in the Oxidation and Removal of Ammonia from Drinking Water Contaminant Removal; Treatment Technologies Darren Lytle
The Role of Microbial Processes in the Oxidation and Removal of Arsenic from Drinking Water Contaminant Removal; Arsenic; Treatment Technologies Darren Lytle
Evaluation of Modified Media for Simultaneous Treatment of Perchlorate and Arsenic Filtration and Contaminant Removal; Arsenic; Treatment Technologies Heath Mash
Drinking Water Control of Pesticides of Interest to the Office of Pesticide Programs Contaminant Removal; Treatment Technologies; Richard Miltner
Drinking Water Control of Pesticides of Security Interest Treatment Technologies; Contaminant Removal Richard Miltner
Drinking Water Treatability Database Treatment Technologies Richard Miltner
Chloraminated Drinking Water Distribution System Nitrification: Batch and Biofilm Inactivation Studies of Operational Responses to Nitrification Episodes Distribution Systems; Treatment Technologies Jonathan Pressman
Integrated Disinfection Byproducts (DBPs) Mixtures Research: DBP Concentration via Reverse Osmosis Membrane Techniques Disinfection Byproducts; Treatment Technologies Jonathan Pressman
Analysis of Distribution System and Domestic Service Line Pipe Deposits to Understand Water Treatment/Metal Release Relationships Corrosion; Distribution Systems; Aging Water Infrastructure Michael Schock
In-house Copper and Lead Solubility/Corrosion Studies Corrosion; Aging Water Infrastructure Michael Schock
Evaluation of Arsenic Removal Technology: Arsenic Demonstration Program Arsenic; Treatment Technologies Thomas Sorg

Recent Publications

Journal Articles exit EPA

Book/Book Chapters exit EPA

Reports

Contact Information

To ask a question or report a problem regarding the Water Research web pages, please contact Michelle Latham, 513-569-7601, or use the address below.

Mailing address

U.S. EPA National Risk Management Research Laboratory
Andrew W. Breidenbach Environmental Research Center
Water Supply and Water Resources Division
26 West Martin Luther King Drive
Mail Code: MLK 689
Cincinnati, OH 45268

Office of Research & Development | National Risk Management Research Laboratory


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