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Peracetic acid (PAA) and low-pressure ultraviolet (LP-UV) inactivation of Coxsackievirus B3 (CVB3) in municipal wastewater individually and concurrently.
Water Res. 2020 Sep 15; 183:116048.WR

Abstract

Domestic wastewater (WW) contains a large number of pathogenic viruses that are not significantly reduced in most WW treatment processes and are found in high numbers in the effluent of conventionally disinfected WW. In this study, secondary WW effluent bench-scale disinfection efficacy experiments with two different peracetic acid (PAA) formulations (15 and 22% peracetic acid) and low-pressure ultraviolet irradiation (LP-UV) were carried out using Coxsackievirus B3 (CVB3) as a clinically relevant surrogate for enteric viruses and Escherichia coli (E. coli) as the disinfection efficacy control. Efficacy experiments were done in a test matrix of medium-pressure UV (MP-UV) decontaminated secondary WW effluent under representative PAA doses and LP-UV fluences used at wastewater treatment plants (WWTP). Membrane filtration technique was used to determine Log10 CFU reductions of E. coli and a tissue culture infectious dose 50% assay (TCID50) for Log10 TCID50 reduction of CVB3. The CVB3 proved to be quite resistant to PAA with ≤1 Log10 TCID50 reduction to concentrations ≤50 mg/L at a contact time of 15 min, and highly susceptible to LP-UV at 20 mJ/cm2. Concurrent use of both formulations of 3 mg/L PAA with 20 mJ/cm2 LP-UV achieved ∼4 Log10 TCID50 reduction. The E. coli results showed ˃5 Log10 CFU reductions at a contact time of 15 min with both 3 mg/L PAA formulations, 20 mJ/cm2 LP-UV treatment alone, and combined with both 1.5 mg/L PAA formulations. The E. coli efficacy data were consistent with that reported in the literature and showed to be comparable to conventional chlorine disinfection. The CVB3 efficacy data has shown that PAA alone may not be suitable for the reduction of enteric viruses in secondary wastewater effluent, but this is also the case for chlorine-based disinfectants. The results from this study showed that the use of PAA with LP-UV at reasonable concentrations (1.5 mg/L) and fluence (20 mJ/cm2) can significantly reduce the PAA use and meet wastewater disinfection goals for both E. coli and CVs. However, the concurrent use of PAA with LP-UV did not lead to significant synergy in disinfection efficacy in wastewater.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Kibbee R
Department of Civil and Environmental Engineering, Carleton University, 1125 Colonel By Drive, K1S 5B6, Ottawa, ON, Canada.
Örmeci B
Department of Civil and Environmental Engineering, Carleton University, 1125 Colonel By Drive, K1S 5B6, Ottawa, ON, Canada. Electronic address: banu.ormeci@carleton.ca.

MeSH

DisinfectantsDisinfectionEscherichia coliPeracetic AcidUltraviolet RaysWastewater

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32668349

Citation

Kibbee, Richard, and Banu Örmeci. "Peracetic Acid (PAA) and Low-pressure Ultraviolet (LP-UV) Inactivation of Coxsackievirus B3 (CVB3) in Municipal Wastewater Individually and Concurrently." Water Research, vol. 183, 2020, p. 116048.
Kibbee R, Örmeci B. Peracetic acid (PAA) and low-pressure ultraviolet (LP-UV) inactivation of Coxsackievirus B3 (CVB3) in municipal wastewater individually and concurrently. Water Res. 2020;183:116048.
Kibbee, R., & Örmeci, B. (2020). Peracetic acid (PAA) and low-pressure ultraviolet (LP-UV) inactivation of Coxsackievirus B3 (CVB3) in municipal wastewater individually and concurrently. Water Research, 183, 116048. https://doi.org/10.1016/j.watres.2020.116048
Kibbee R, Örmeci B. Peracetic Acid (PAA) and Low-pressure Ultraviolet (LP-UV) Inactivation of Coxsackievirus B3 (CVB3) in Municipal Wastewater Individually and Concurrently. Water Res. 2020 Sep 15;183:116048. PubMed PMID: 32668349.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Peracetic acid (PAA) and low-pressure ultraviolet (LP-UV) inactivation of Coxsackievirus B3 (CVB3) in municipal wastewater individually and concurrently. AU - Kibbee,Richard, AU - Örmeci,Banu, Y1 - 2020/06/17/ PY - 2020/04/21/received PY - 2020/06/10/revised PY - 2020/06/11/accepted PY - 2020/7/16/pubmed PY - 2020/9/17/medline PY - 2020/7/16/entrez KW - Advanced oxidation KW - Coxsackievirus KW - Disinfection KW - Escherichia coli KW - Peracetic acid KW - Ultraviolet SP - 116048 EP - 116048 JF - Water research JO - Water Res VL - 183 N2 - Domestic wastewater (WW) contains a large number of pathogenic viruses that are not significantly reduced in most WW treatment processes and are found in high numbers in the effluent of conventionally disinfected WW. In this study, secondary WW effluent bench-scale disinfection efficacy experiments with two different peracetic acid (PAA) formulations (15 and 22% peracetic acid) and low-pressure ultraviolet irradiation (LP-UV) were carried out using Coxsackievirus B3 (CVB3) as a clinically relevant surrogate for enteric viruses and Escherichia coli (E. coli) as the disinfection efficacy control. Efficacy experiments were done in a test matrix of medium-pressure UV (MP-UV) decontaminated secondary WW effluent under representative PAA doses and LP-UV fluences used at wastewater treatment plants (WWTP). Membrane filtration technique was used to determine Log10 CFU reductions of E. coli and a tissue culture infectious dose 50% assay (TCID50) for Log10 TCID50 reduction of CVB3. The CVB3 proved to be quite resistant to PAA with ≤1 Log10 TCID50 reduction to concentrations ≤50 mg/L at a contact time of 15 min, and highly susceptible to LP-UV at 20 mJ/cm2. Concurrent use of both formulations of 3 mg/L PAA with 20 mJ/cm2 LP-UV achieved ∼4 Log10 TCID50 reduction. The E. coli results showed ˃5 Log10 CFU reductions at a contact time of 15 min with both 3 mg/L PAA formulations, 20 mJ/cm2 LP-UV treatment alone, and combined with both 1.5 mg/L PAA formulations. The E. coli efficacy data were consistent with that reported in the literature and showed to be comparable to conventional chlorine disinfection. The CVB3 efficacy data has shown that PAA alone may not be suitable for the reduction of enteric viruses in secondary wastewater effluent, but this is also the case for chlorine-based disinfectants. The results from this study showed that the use of PAA with LP-UV at reasonable concentrations (1.5 mg/L) and fluence (20 mJ/cm2) can significantly reduce the PAA use and meet wastewater disinfection goals for both E. coli and CVs. However, the concurrent use of PAA with LP-UV did not lead to significant synergy in disinfection efficacy in wastewater. SN - 1879-2448 UR - https://www.unboundmedicine.com/medline/citation/32668349/Peracetic_acid__PAA__and_low_pressure_ultraviolet__LP_UV__inactivation_of_Coxsackievirus_B3__CVB3__in_municipal_wastewater_individually_and_concurrently_ DB - PRIME DP - Unbound Medicine ER -