Disinfection kinetics of peracetic acid inactivation of pathogenic bacteria in water
Sijia Zhang, Lin Jiang, Hang Li, Jiani Zhang, Teng Sun, Yiran Dong, Ning Ding
Abstract
Peracetic acid (PAA) has broad application in disinfection, since it produces fewer disinfection by-products. In this study, PAA was used as a disinfectant to inactivate Escherichia coli, Staphylococcus aureus, and Bacillus subtilis under different pHs and turbidity. The effects of different environmental factors on PAA disinfection were compared. The results were fitted by the common disinfection kinetic models, and the CTs were finally calculated according to the disinfectant decay models and the optimal disinfection kinetic models. By comparing PAA with other common disinfectants, the projected application of PAA was discussed.
Topics & Concepts
Peracetic acidDisinfectantBacillus subtilisWater disinfectionChemistryMicrobiologyStaphylococcus aureusTurbidityKineticsBacteriaEnvironmental engineeringBiologyEnvironmental scienceHydrogen peroxideBiochemistryOrganic chemistryQuantum mechanicsPhysicsEcologyGeneticsListeria monocytogenes in Food SafetySalmonella and Campylobacter epidemiologyFood Safety and Hygiene