NPP FY 2020 LDRD Draft Proposal Presentations May

NPP FY 2020 LDRD Draft Proposal Presentations May 2019 Ady Hershcovitch 1

NPP - FY 2020 Draft LDRD Presentation Proposal Title: Power efficient Plasma Device for removal of PFASs, 1, 4 Dioxane & other contaminants of emerging concerns from water supply & wastewater at record water disinfection rates Principal Investigator: Ady Hershcovitch Department/Division: CA-D Other Investigators: Post Doc TBD; Douglas Paquette, BNL Environmental Protection Division; Terrence Sullivan, BNL Environmental and Climate Sciences Department Proposal Term: From – October 2019 To – September 2022 2

NPP – FY 2020 Draft LDRD Presentation • Project Description: Develop a power efficient water treatment that can remove PFASs, 1, 4 Dioxane, pathogens and pharmaceuticals from the water at unprecedented rate, by essentially in-water plasma blow torch generation, which no existing technique can do. In-water vortex stabilized arc setup for demonstrating water purification. Free-standing steady state vortex stabilized plasma arc in atmosphere extended from a plasma window 3

NPP – FY 2020 Draft LDRD Presentation Expected Results: • Development of an in-water vortex stabilized water plasma device that will demonstrate effectiveness for removal of PFASs and 1, 4 Dioxane from tap, BNL well water and SCWA water sources. • The device is unique in that it has the capability of deactivating all pathogens, degrading all pharmaceuticals as well as all other chemical contaminates, at a reasonable power and cost. • The device can be scaled up to a prototype water and wastewater treatment reactor. Milestones: • Design with input from BNL and fabricate by PVI a scaled-up water vortex device and establish water vortex with large “tornado eye” and water free argon bubble; fabricate (at BNL) moveable cathodes; start initial operation of water vortex stabilized steady state discharge for debugging the electrical discharge system. To be completed by May 31, 2020. • Move and setup water vortex stabilized discharge device at BNL. Complete safety review! Commence device operation. Complete design of test facility to include insertion and retraction of (PFAS & 1, 4 Dioxane) sample holders as well as ports for UV diagnostics. To be completed by September 30, 2020. • Treat and optimize treatment rate of combined PFASs and 1, 4 Dioxane contaminated BNL and SCWA wells; and, optimize germicidal UV emission. Aim is to reach EPA advisory of 70 ng/L for the combined concentrations of PFOS and PFOA and 1 µg/L of 1, 4 -dioxane, which NYS is currently considering establishing. To be completed by September 30, 2022. 4

NPP FY 2020 LDRD Draft Presentation • Program: Multiprogram. • Return on Investment: 1) If technology readiness level 5 is reached, investment from industries e. g. American Water, DOW, and Applied Materials can be expected 2) DOE Stewardship of Accelerator Technologies for Energy and Environmental Applications, since it will facilitate enhanced e-beam propagation 3) Recent solicitations from both DOE & NSF to establish mid-size facilities utilizing low temperature plasma facilities $6 M to $20 M range • Proposed work is exploratory research designed to address a looming environmental problem, for which future accelerator technology can be applicable. • Total Effort (FTE) • Scientific: 1 FTE (shared by AH, DP, and TS at no cost to the LDRD) • Post Doc: 1 FTE (Post-doc labor or equivalent; SCWA will likely test water samples for free) • Other: first year 0. 6; second and third years 0. 1 each 5

NPP FY 2020 LDRD Draft Presentation – Funding Requirements and Milestones • Fiscal Year FY 2020 FY 2021 FY 2022 • Total Funds $306, 908 $127, 876 $153, 745 • Labor $121, 539 $56, 707 $58, 976 • MST $75, 003 $21, 557 $41, 260 • Dept. O/H $31, 333 $14, 619 $15, 204 • Lab G&A $79, 033 $34, 993 $38, 305 6

Plasma Window Equivalency Plasma discharge in the Plasma Window is a type of wall-stabilized cascade arc discharge (top) not very useful unless cathodes and anode configurations are changed to facilitate through flow (bottom) Cascade arc discharge Crux-of-the-matter is the plan to convert a vortex stabilized plasma like the torch (top) to large diameter water vortex stabilized plasma for water treatment (bottom) ☞ Plasma Window 7