Environmental Science and Engineering Project 2: Remediation
ESE Research Project #2: Destructive Treatment of Per- and Polyfluoroalkyl Substances in Contaminated Waters to Protect Human Health
Key Aims: Elucidate molecular transformation of PFAS structures, as profiled by Environmental Science and Engineering Project 1, under electrochemical oxidation and photochemical reduction conditions, evaluate the effects of operational parameters on the transformation products, optimize treatment conditions to mitigate harmful residues.
Study Sites/Community: Contaminated ground water source at the Superfund site (Rantoul, IL), Private well water (Rantoul, IL); sources near UCR (California), and Clarkson U. Potsdam (NY).
Integration: Environmental Science and Engineering Project 2 develops treatment tools for PFAS identified in Environmental Science and Engineering Project 1 and provides treatment residues to BSE RPs to test for adverse effects to further refine system parameters to minimize the generation of harmful byproducts. Data Management and Analysis Core and Analytical Services Core are utilized for sample preparation, metabolite analysis, and DMA. Trainees in the Research Experience and Training Coordination Core will work with the Administrative Core on technology transfer and Community Engagement Core for partnering with community on interventions.
M. Bentel, Z. Liu, Y. Yu, J. Gao, Y. Men, J. Liu*. Enhanced Degradation of Perfluorocarboxylic Acids (PFCAs) by UV/Sulfite Treatment: Reaction Mechanisms and System Efficiencies at pH 12. Environmental Science & Technology Letters 2020, 7, 351−357.
M. Bentel, Y. Yu, L. Xu, B. Wong, Y. Men, J. Liu*. Degradation of Perfluoroalkyl Ether Carboxylic Acids with Hydrated Electrons: Structure–Reactivity Relationships and Environmental Implications. Environmental Science & Technology 2020, 54, 2489−2499.
M. Bentel, Y. Yu, L. Xu, B. Wong, Y. Men, J. Liu*. Defluorination of per- and polyfluoroalkyl substances (PFASs) with hydrated electrons: Structural dependence and implications to PFASs remediation and management. Environmental Science & Technology 2019, 53, 3718−3728.
J. Liu*, D. Van Hoomissen, T. Liu, A. Maizel, X. Huo, S. Fernández, C. Ren, X. Xiao, Y. Fang, C. Schaefer, C. Higgins, S. Vyas*, T. Strathmann*. Reductive defluorination of branched per- and polyfluoroalkyl substances with cobalt complex catalysts. Environmental Science & Technology Letters 2018, 5, 289−294.
R. Tenorio, J. Liu (equal contribution), X. Xiao, A. Maizel, C. Higgins, C. Schaefer, T. Strathmann*. Destruction of per- and polyfluoroalkyl substances (PFASs) in aqueous film-forming foam (AFFF) with UV-sulfite photo-reductive treatment. Environmental Science & Technology 2020, 54, 6957−6967.
S. Dasgupta, A. Reddam, Z. Liu, J. Liu, D. Volz*. High-content screening in zebrafish identifies perfluorooctanesulfonamide as a potent developmental toxicant. Environmental Pollution 2020, 256, #113550.
Y. Yu, K. Zhang, Z. Li, C. Ren, J. Chen, Y. Lin, J. Liu, and Y. Men*. Microbial cleavage of C–F bonds in two C6 per- and polyfluorinated compounds via reductive defluorination. Environmental Science & Technology 2020, 54, 14393−14402.