An Enhanced Contact Plasma Reactor: A Competitive Remediation Technology for Per- and Perfluoroalkyl Substance (PFAS) Contaminated Water

EPA Contract Number: 68HE0D18C0022
Title: An Enhanced Contact Plasma Reactor: A Competitive Remediation Technology for Per- and Perfluoroalkyl Substance (PFAS) Contaminated Water
Investigators: Multari, Nicholas
Small Business: DMAX Plasma LLC
EPA Contact: Richards, April
Phase: I
Project Period: October 1, 2018 through March 31, 2019
Project Amount: $98,991
RFA: Small Business Innovation Research (SBIR) - Phase I (2018) RFA Text |  Recipients Lists
Research Category: Small Business Innovation Research (SBIR) , SBIR - Water , SBIR - Water Quality

Description:

Perfluoroalkyl substances (PFASs) have received considerable attention due to their toxicity,

ubiquitous presence and recalcitrance. Manufacture and disposal of PFAS-containing products has

resulted in PFAS contamination of numerous water supplies. Recent reports indicate the Air Force

alone is expecting to spend > $2.25 billion for cleanup for PFAS-contaminated sites. Thus, there is a

huge market for technologies that can help remediate sites contaminated by PFASs. Our technology

called an enhanced contact electrical discharge plasma reactor generates aqueous electrons which

chemically reduce PFASs. Recent experiments on PFAS-impacted groundwater from a Department of

Defense site demonstrated that the technology is capable of reducing perfluorooctanoic acid (PFOA)

and perfluorooctyl sulfonate (PFOS) concentrations to below regulatory limits within 1 minute of

treatment at 1 gallon per minute flowrate. These removal rates are significantly better than those of

leading alternative treatment technologies and treatment costs are significantly lower. Funding has

been obtained to field demonstrate the reactor and two consulting firms active in PFAS remediation

are strong supporters of the technology. This proposal is aimed at eliminating the final hurdles towards

a commercially viable reactor: improving the design of the plasma producing electrical circuit so it can

operate more efficiently and continuously with minimum downtime.

Supplemental Keywords:

PFAS, technology, remediation, groundwater

Progress and Final Reports:

  • Final Report