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Performic Acid Disinfection of Municipal Secondary Effluent Wastewater: Inactivation of Murine Norovirus, Fecal Coliforms, and Enterococci.
Environ Sci Technol. 2020 10 06; 54(19):12761-12770.ES

Abstract

Performic acid (PFA) is an emerging disinfectant to inactivate bacterial and viral microorganisms in wastewater. In this study, the inactivation kinetics of murine norovirus (MNV) by PFA, in phosphate buffer and municipal secondary effluent wastewater, are reported for the first time. PFA decay followed first-order kinetics and the inactivation of MNV was governed by the exposure of microorganisms to PFA, i.e., the integral of the PFA concentration over time (integral CT or ICT). The extension of the Chick-Watson model, in the ICT domain, described well the reduction of MNV by PFA, with determined ICT-based inactivation rate constants, kd, of 1.024 ± 0.038 L/(mg·min) and 0.482 ± 0.022 L/(mg·min) in phosphate buffer and wastewater, respectively, at pH 7.2. Furthermore, the simultaneous PFA inactivation of MNV and fecal indicators indigenously present in wastewater such as fecal coliforms and enterococci showed that 1-log reduction could be achieved with ICT of 2, 1.5, and 3.5 mg·min/L, respectively. When compared with the most commonly used peracid disinfectant of municipal wastewater, peracetic acid (PAA), the ICT requirements determined using the fitted ICT-based kinetic models were ∼20 times higher for PAA than PFA, indicating a much stronger inactivation power of the PFA molecule.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Maffettone R
Department of Chemical and Biochemical Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada. Trojan Technologies, London, Ontario N5 V 4T7, Canada.
Manoli K
Department of Chemical and Biochemical Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada. Trojan Technologies, London, Ontario N5 V 4T7, Canada.
Santoro D
Department of Chemical and Biochemical Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada. USP Technologies, London, Ontario N5 V 4T7, Canada.
Passalacqua KD
Department of Microbiology and Immunology, University of Michigan, Ann Arbor, Michigan 48109, United States.
Wobus CE
Department of Microbiology and Immunology, University of Michigan, Ann Arbor, Michigan 48109, United States.
Sarathy S
Department of Chemical and Biochemical Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada. Trojan Technologies, London, Ontario N5 V 4T7, Canada.

MeSH

AnimalsDisinfectantsDisinfectionEnterococcusFormatesMiceNorovirusPeracetic AcidVirus InactivationWastewater

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

32835477

Citation

Maffettone, Roberta, et al. "Performic Acid Disinfection of Municipal Secondary Effluent Wastewater: Inactivation of Murine Norovirus, Fecal Coliforms, and Enterococci." Environmental Science & Technology, vol. 54, no. 19, 2020, pp. 12761-12770.
Maffettone R, Manoli K, Santoro D, et al. Performic Acid Disinfection of Municipal Secondary Effluent Wastewater: Inactivation of Murine Norovirus, Fecal Coliforms, and Enterococci. Environ Sci Technol. 2020;54(19):12761-12770.
Maffettone, R., Manoli, K., Santoro, D., Passalacqua, K. D., Wobus, C. E., & Sarathy, S. (2020). Performic Acid Disinfection of Municipal Secondary Effluent Wastewater: Inactivation of Murine Norovirus, Fecal Coliforms, and Enterococci. Environmental Science & Technology, 54(19), 12761-12770. https://doi.org/10.1021/acs.est.0c05144
Maffettone R, et al. Performic Acid Disinfection of Municipal Secondary Effluent Wastewater: Inactivation of Murine Norovirus, Fecal Coliforms, and Enterococci. Environ Sci Technol. 2020 10 6;54(19):12761-12770. PubMed PMID: 32835477.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Performic Acid Disinfection of Municipal Secondary Effluent Wastewater: Inactivation of Murine Norovirus, Fecal Coliforms, and Enterococci. AU - Maffettone,Roberta, AU - Manoli,Kyriakos, AU - Santoro,Domenico, AU - Passalacqua,Karla D, AU - Wobus,Christiane E, AU - Sarathy,Siva, Y1 - 2020/09/08/ PY - 2020/8/25/pubmed PY - 2021/1/7/medline PY - 2020/8/25/entrez SP - 12761 EP - 12770 JF - Environmental science & technology JO - Environ Sci Technol VL - 54 IS - 19 N2 - Performic acid (PFA) is an emerging disinfectant to inactivate bacterial and viral microorganisms in wastewater. In this study, the inactivation kinetics of murine norovirus (MNV) by PFA, in phosphate buffer and municipal secondary effluent wastewater, are reported for the first time. PFA decay followed first-order kinetics and the inactivation of MNV was governed by the exposure of microorganisms to PFA, i.e., the integral of the PFA concentration over time (integral CT or ICT). The extension of the Chick-Watson model, in the ICT domain, described well the reduction of MNV by PFA, with determined ICT-based inactivation rate constants, kd, of 1.024 ± 0.038 L/(mg·min) and 0.482 ± 0.022 L/(mg·min) in phosphate buffer and wastewater, respectively, at pH 7.2. Furthermore, the simultaneous PFA inactivation of MNV and fecal indicators indigenously present in wastewater such as fecal coliforms and enterococci showed that 1-log reduction could be achieved with ICT of 2, 1.5, and 3.5 mg·min/L, respectively. When compared with the most commonly used peracid disinfectant of municipal wastewater, peracetic acid (PAA), the ICT requirements determined using the fitted ICT-based kinetic models were ∼20 times higher for PAA than PFA, indicating a much stronger inactivation power of the PFA molecule. SN - 1520-5851 UR - https://www.unboundmedicine.com/medline/citation/32835477/Performic_Acid_Disinfection_of_Municipal_Secondary_Effluent_Wastewater:_Inactivation_of_Murine_Norovirus_Fecal_Coliforms_and_Enterococci_ DB - PRIME DP - Unbound Medicine ER -