Comparison of organic peracids in wastewater treatment: Disinfection, oxidation and corrosion

Water Research
Tero LuukkonenUlla Lassi

Abstract

The use of organic peracids in wastewater treatment is attracting increasing interest. The common beneficial features of peracids are effective anti-microbial properties, lack of harmful disinfection by-products and high oxidation power. In this study performic (PFA), peracetic (PAA) and perpropionic acids (PPA) were synthesized and compared in laboratory batch experiments for the inactivation of Escherichia coli and enterococci in tertiary wastewater, oxidation of bisphenol-A and for corrosive properties. Disinfection tests revealed PFA to be a more potent disinfectant than PAA or PPA. 1.5 mg L(-1) dose and 2 min of contact time already resulted in 3.0 log E. coli and 1.2 log enterococci reduction. Operational costs of disinfection were estimated to be 0.0114, 0.0261 and 0.0207 €/m(3) for PFA, PAA and PPA, respectively. Disinfection followed the first order kinetics (Hom model or S-model) with all studied peracids. However, in the bisphenol-A oxidation experiments involving Fenton-like conditions (pH = 3.5, Fe(2+) or Cu(2+) = 0.4 mM) peracids brought no additional improvement to traditionally used and lower cost hydrogen peroxide. Corrosion measurements showed peracids to cause only a negligible corrosion rate (<6 μm year(-1))...Continue Reading

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Citations

Feb 18, 2017·Environmental Science and Pollution Research International·Ravi Kumar ChhetriPernille Erland Jensen
Apr 5, 2020·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Tasnim AmerianDomenico Santoro
Jul 2, 2020·International Journal of Environmental Research and Public Health·Ravi Kumar ChhetriHenrik Rasmus Andersen
Jan 2, 2020·Journal of Environmental Sciences (China)·Rita MaurícioMário S Diniz
Jan 13, 2021·The Science of the Total Environment·Ilaria ZarrellaAntonio Proto
Feb 23, 2021·Water Science and Technology : a Journal of the International Association on Water Pollution Research·R MaillerV Rocher
Sep 15, 2020·Resources, Conservation, and Recycling·Sampriti KatakiSanjai K Dwivedi
Jul 27, 2021·The Science of the Total Environment·Concetta PirontiGianluigi Franci
Mar 19, 2020·Environmental Science & Technology·Juhee KimChing-Hua Huang
Jul 10, 2020·Environmental Science & Technology·Tianqi ZhangChing-Hua Huang
Nov 26, 2019·Environmental Science & Technology·Zongping WangMark R Wiesner
Oct 23, 2019·Environmental Science & Technology·Juhee KimChing-Hua Huang
Aug 24, 2021·Journal of King Saud University. Science·Hadil M AlahdalMohammad N Alomary

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