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Title: Electron beam irradiation of 1,4 dioxane

Conference ·
DOI:https://doi.org/10.2172/1973201· OSTI ID:1973201
 [1];  [1];  [2];  [3];  [3];  [4];  [5];  [3];  [3];  [3]
  1. Old Dominion Univ., Norfolk, VA (United States)
  2. Hampton Roads Sanitation District
  3. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  4. PhaseSpaceTech
  5. Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)
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Electron beam irradiation produces both, reducing and oxidizing species which facilitate the reduction of contaminants found in water and wastewater. To investigate the impact of electron beam on 1,4-dioxane, a widely used solvent which has been declared as a probable human carcinogen by the U.S. Environmental Protection Agency, a beamline was designed and commissioned at the Upgraded Injector Test Facility at Jefferson Lab. Here, wastewater samples can be irradiated with a beam energy up to 10 MeV and a beam current of up to 100 nA. Beam acceleration is achieved by two superconducting radio-frequency cavities cooled by liquid helium in a cryomodule. A beam spot with a diameter of ~5 cm was produced at the target location using a pair of raster coils. Electron beam irradiation studies were performed using 1,4-dioxane in two different matrices, de-ionized water and secondary effluent wastewater, and for two concentrations, 10 microg/L and 100 microg/L. The concentration of 1,4-dioxane after irradiation was measured as a function of dose.

Research Organization:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
DOE Contract Number:
AC05-06OR23177
OSTI ID:
1973201
Report Number(s):
JLAB-ACC-21-3543; DOE/OR/23177-6176
Resource Relation:
Conference: 14th International Topical Meeting on Nuclear Applications of Accelerators (AccApp'21), November 30 - December 3, 2021, Washington, DC
Country of Publication:
United States
Language:
English

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