Perfluoroalkyl Substances PFASs Raju Badireddy Assistant Professor Water Treatment amp Environmental Nanotechnology WTEN Laboratory Civil and Environmental Engineering 1 2 YEAR OF BIRTH 1940s ID: 1011556
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1. In Situ Remediation Strategies for Transformation of Perfluoroalkyl Substances (PFASs)Raju BadireddyAssistant ProfessorWater Treatment & Environmental Nanotechnology (WTEN) LaboratoryCivil and Environmental Engineering1
2. 2YEAR OF BIRTH: 1940shttps://www.linkedin.com/company/caras/STAIN-RepellantsPFAS are Ubiquitous
3. Environmental Contamination by PFASs Increased since early 2000s May 25, 2016: FIVE MILLION U.S. Citizens woke up to learn that their drinking water contained PFOA and PFOS at concentrations exceeding the revised health advisory levels of the US EPA (70 parts per trillion, life time exposure)Hoosick Falls, NYNorth Bennington, VTPrivate drinking water wells: 40 to 2,880 parts per TRILLION!!!PFASPFASPFASGroundwater clean up cost at military installations = $2 Billion (US DoD)
4. Environmental Contamination by PFASs Increased since early 2000s PFAS pose great risk to the Environment and the Human Health (300 plus peer-reviewed publications)Regulatory Agencies Response: Past: Voluntary Compliance (benefited manufacturers)Need: Enforceable drinking water standards (PFAS)Current Status and Prospect: Minimize exposure and remove PFAS from environmentFew, unsustainable, engineered treatment processes existNeed better detection and cost-effective remediation approaches
5. 5Break PFOA with Radicals (Hydroxyl)Remediation StrategiesCapture and Separate PFOA with Magnetic Fatty AcidsPFOAIron oxide/Iron Nanoparticles( 1 GRAM of material covers the entire area of a Football Field )Magnetic Liposomal Iron oxide Nanoparticles