Peracetic acid as an alternative disinfection technology for wet weather flows

Elizabeth E. Coyle, Lindell E. Ormsbee, Gail M. Brion

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


Rain-induced wet weather flows (WWFs) consist of combined sewer overflows, sanitary sewer overflows, and stormwater, all of which introduce pathogens to surface waters when discharged. When people come into contact with the contaminated surface water, these pathogens can be transmitted resulting in severe health problems. As such, WWFs should be disinfected. Traditional disinfection technologies are typically cost-prohibitive, can yield toxic byproducts, and space for facilities is often limited, if available. More cost-effective alternative technologies, requiring less space and producing less harmful byproducts are currently being explored. Peracetic acid (PAA) was investigated as one such alternative and this research has confirmed the feasibility and applicability of using PAA as a disinfectant for WWFs. Peracetic acid doses ranging from 5 mg/L to 15 mg/L over contact times of 2 to 10 minutes were shown to be effective and directly applicable to WWF disinfection.

Original languageEnglish
Pages (from-to)687-697
Number of pages11
JournalWater Environment Research
Issue number8
StatePublished - Aug 1 2014

Bibliographical note

Publisher Copyright:
© 2014, Water Environment Federation. All rights reserved.


  • High-rate disinfection
  • Peracetic acid
  • Wastewater disinfection
  • Wet weather flows

ASJC Scopus subject areas

  • Environmental Chemistry
  • Ecological Modeling
  • Water Science and Technology
  • Waste Management and Disposal
  • Pollution


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