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Executive Staff

Dr. Christopher Gobler, Co-Director

Dr. Harold Walker, Co-Director

Ms. Hilary Wolfskill, Center Administrator

Research Team

Dr. Roy Price, Research Coordinator

Dr. Pejman Hadi Myavagh, Postdoctoral Scholar

Dr. Stuart Waugh, Postdoctoral Scholar

Faculty Collaborators

Dr. Bruce Brownawell

Dr. Jackie Collier

Dr. Ben Hsiao

Dr. Xinwei Mao

Dr. Alex Orlov

Dr. Nils Volkenborn

Dr. Laura Wehrmann

Dr. Yubin Zeng

Dr. Qingzhi Zhu

Graduate / Undergraduate Student Assistants

Ms. Patricia Clyde, PhD student:  Removal Mechanisms and Fates of Organic Wastewater Compounds

Ms. Molly Graffam, PhD student: Sediment Biogeochemistry, Bioirrigation of the Upper Layer of Marine Sediments

Ms. Xiangyu Huang, PhD student: Applying Electrospun Polymer Membrane for MBR to Remove Nitrogen from Wastewater

Ms. Kylie Langlois, PhD student: Marine Biology and Biological Oceanography

Ms. Jeanette Lee, MS student: Sediment Biogeochemistry, Nitrogen and Phosphorous Cycling

Ms. Sarah Lotfikatouli, PhD student: Civil Engineering

Ms. Sarah Monestaro, undergraduate student: Civil Engineering

Ms. Samantha Roberts, PhD student: The Potential for Vertical Flow Constructed Wetlands in the Treatment of Wastewater

Ms. Zoe Smith, MS student: Trace Metal and Cation Analyses of Water and Sediment Samples

Ms. Mengying Yang, PhD student: Chemistry, Membrane Synthesis

Graduate and Undergraduate students may be hired as Research/Student Assistants to work in learning capacities and assist the research team. For further information on working for the Center for Clean Water Technology contact


Dr. Christopher Gobler is a Professor within the School of Marine and Atmospheric Sciences (SoMAS) at Stony Brook University.  He received his M.S. and Ph.D. from Stony Brook University in the 1990s.  He began his academic career at Long Island University (LIU) in 1999.  In 2005, he joined Stony Brook University as the Director of Academic Programs for SoMAS on the Stony Brook – Southampton campus.  In 2014, he was appointed as the Associate Dean of Research at SoMAS and in 2015, he was named co-Director of the New York State Center for Clean Water Technology.  The major research focus within his group is investigating how anthropogenic activities such as climate change, eutrophication, and the over-harvesting of fisheries alters the natural biogeochemical and/or ecological functioning of coastal ecosystems.   Within this realm, major research efforts include the study of harmful algal blooms (HABs) caused by multiple classes of phytoplankton in diverse ecosystems as well as the effects of coastal ocean acidification on marine life.

Dr. Gobler was born on, and has spent his entire life on, Long Island.  He grew up enjoying swimming on Long Island’s ocean beaches, fishing on the East End, and sailing on the Long Island Sound.  His pursuit of his graduate studies in marine science was motivated by the progressive declines in Long Island’s shellfisheries during the 1980s. During the past twenty years, his research has identified the key role excessive nitrogen loading has played in the degradation of Long Island’s fisheries and water quality.  With the establishment of the Center for Clean Water Technology, Dr. Gobler sees the promise of discovering the solutions to Long Island’s nitrogen problems as well as the creation of an industry that can create jobs for Long Islanders.

Dr. Harold W. Walker serves as the co-Director of the NYS Center for Clean Water Technology. Dr. Walker is also Professor and Founding Chair of the Department of Civil Engineering at Stony Brook University. Prior to coming to Stony Brook University, Dr. Walker was a Professor in the Department of Civil, Environmental, and Geodetic Engineering at Ohio State University and also served as the Director of the Ohio Water Resources Center. Dr. Walker received his M.S. and Ph.D. in Civil and Environmental Engineering from the University of California, Irvine and his B.S. degree in Environmental Engineering from Cal Poly, San Luis Obispo. Dr. Walker’s research focuses on the development of innovative technologies to produce clean water. His research has been supported by a number of funding agencies including NSF, USEPA, USGS, NOAA as well as a host of state agencies and other sources. Dr. Walker is also a registered Professional Engineer.

Ms. Hilary Wolfskill serves as the Center's Administrator, responsible for grants management of all Center funding and providing principal administrative support to the Center team. She works collaboratively with numerous campus departments as well as outside partners and stakeholders to ensure the success of the Center's mission. Hilary comes to us with extensive experience in the administrative policies and procedures of Stony Brook University, having previously worked in finance, campus safety, student affairs, and academics. The opportunity to continue to support Stony Brook's mission has kept Hilary with the campus after earning a B.S. from SUNY Empire and an M.A. in Higher Education Administration from Stony Brook University. 

Dr. Roy Price  is currently a Research Professor within the School of Marine and Atmospheric Sciences (SoMAS) at Stony Brook University.  Following completion of his B.S. in Geology at the University of Arkansas, he worked in the Regional Observation Monitor Well Program (ROMP) at the Southwest Florida Water Management District (SWFWMD). Following this, he received his M.S. and Ph.D. from the University of South Florida in 2003 and 2008, respectively.  His M.S. degree focused on arsenic mobilization during aquifer storage and recovery (ASR) in southwest Florida. His Ph.D. focused on trace metal cycling in a coastal environment affected by hydrothermal venting.  These ‘shallow-sea hot springs’ are often enriched in toxic metals, and thus are natural analogs to coastal anthropogenic pollution. Following his Ph.D., Dr. Price received a highly competitive post-doctoral research fellowship at the Research Center Ocean Margins (MARUM) in Bremen, Germany, where he continued his work on shallow-sea vents. A second post-doctoral position was conducted at the University of Southern California, focusing on both molecular and cultivation based microbiology of coastal marine environments influenced by hydrothermal venting. Dr. Price continues his research on shallow-sea vents, expanding his expertise to include abiotic CH4, formate and acetate synthesis via Ni-S catalysts in serpentinizing systems. In addition to being the Research Coordinator for the CCWT, Dr. Price uses his expertise to investigate how metals, including Cu, Pb, Hg, As, Cd, and Zn influence the efficiency and functioning of alternative wastewater treatment systems currently being tested by the Center. 

Dr. Pejman Hadi Myavagh is a postodoctoral researcher at the Center for Clean Water Technology. Pejman earned his Ph.D.  from Hong Kong University of Science and Technology (2013) and his B.S. from Sahand University of Technology (2007) in Tabriz, Iran. 

Pejman's research interests include membrane processes, next generation electrospun nanofiber membranes, water and wastewater treatment, solid and hazardous waste management, nano-structured materials for emerging applications, sustainable water purification systems, adsorption processes, and waste management. 

Dr.   Stuart Waugh is a Senior Postdoctoral Associate at the Center for Clean Water Technology. He received his M.S. (2008) and Ph.D. (2015) degrees in marine chemistry from the School for Marine & Atmospheric Sciences at Stony Brook University. His dissertation entitled “Net N2 fluxes in muddy sediments of Great Peconic Bay: rates, pathways and controls” investigated the sedimentary production of NH4+ and its loss from the sediments as N2 gas as well as the natural and anthropogenic controls on these processes.  At CCWT, Stuart’s research is directed at understanding how septic systems transform fixed nitrogen (NH4+, organic N) into reactive forms (NO3-, NO2- and N2O) and inert gas (N2) and the efficiency with which alternate systems accomplish these processes.

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