Infectivity reduction efficacy of UV irradiation and peracetic acid-UV combined treatment on MS2 bacteriophage and murine norovirus in secondary wastewater effluent

Weng, Shih Chi; Dunkin, Nathan; Schwab, Kellogg J.; McQuarrie, James; Bell, Katherine Y.; Jacangelo, Joseph G.

doi:10.1016/j.jenvman.2018.04.064

Cited by 28 publications

(19 citation statements)

References 42 publications

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“…Weng et al. (2018) found a low reduction in infectivity of MNV‐1 when a practical concentration of 1.5 mg/L PAA was used for wastewater treatment. As a disadvantage, the breakdown products of PAA may increase the organic content in effluent, leading to microbial regrowth (Dandie et al., 2019).…”

Section: Chemical Control Methods: Mode Of Action and Efficiencymentioning

confidence: 99%

New food safety challenges of viral contamination from a global perspective: Conventional, emerging, and novel methods of viral control

Ezzatpanah

Gómez‐López

Koutchma

et al. 2022

Comp Rev Food Sci Food Safe

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Food‐ and waterborne viruses, such as human norovirus, hepatitis A virus, hepatitis E virus, rotaviruses, astroviruses, adenoviruses, and enteroviruses, are major contributors to all foodborne illnesses. Their small size, structure, and ability to clump and attach to inanimate surfaces make viruses challenging to reduce or eliminate, especially in the presence of inorganic or organic soils. Besides traditional wet and dry methods of disinfection using chemicals and heat, emerging physical nonthermal decontamination techniques (irradiation, ultraviolet, pulsed light, high hydrostatic pressure, cold atmospheric plasma, and pulsed electric field), novel virucidal surfaces, and bioactive compounds are examined for their potential to inactivate viruses on the surfaces of foods or food contact surfaces (tools, equipment, hands, etc.). Every disinfection technique is discussed based on its efficiency against viruses, specific advantages and disadvantages, and limitations. Structure, genomic organization, and molecular biology of different virus strains are reviewed, as they are key in determining these techniques effectiveness in controlling all or specific foodborne viruses. Selecting suitable viral decontamination techniques requires that their antiviral mechanism of action and ability to reduce virus infectivity must be taken into consideration. Furthermore, details about critical treatments parameters essential to control foodborne viruses in a food production environment are discussed, as they are also determinative in defining best disinfection and hygiene practices preventing viral infection after consuming a food product.

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Section: Chemical Control Methods: Mode Of Action and Efficiencymentioning

confidence: 99%

New food safety challenges of viral contamination from a global perspective: Conventional, emerging, and novel methods of viral control

Ezzatpanah

Gómez‐López

Koutchma

et al. 2022

Comp Rev Food Sci Food Safe

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“…Previous studies have reported that infectious viruses require su cient genomic integrity for translation and replication, and functional capsid for protection of genome and recognition of host cells. 51,52 Thus, it is incredibly challenging to avoid rapid decay of viral infectivity without refrigeration. The shelf-life extension ability of the PSAP beads was rst evaluated using the saline medium dosed with bacteriophage MS2.…”

Section: Viral Infectivity Protectionmentioning

confidence: 99%

Self-Driven Pretreatment and Room-Temperature Storage of Water Samples for Virus Detection Using Enhanced Porous Superabsorbent Polymer (PSAP) Beads

Chen

Wang

Dou

et al. 2021

Preprint

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The continuous emergence of infectious viral diseases has become a major threat to public health. To quantify viruses, proper handling of water samples is required to ensure the accuracy and reliability of the testing results. In this study, we develop enhanced porous superabsorbent polymer (PSAP) beads to pretreat and store water samples for virus detection. By applying PSAP beads to collect water samples, the viruses are captured and encapsulated inside the beads while undesired components are excluded. We have successfully demonstrated that the shelf life of the model virus can be effectively extended at room temperature (22°C) and elevated temperature (35°C). Both the infectivity level and genome abundance of the viruses are protected even in a complex medium like untreated wastewater. Under the tested conditions, the viral degradation rate constant can be reduced to more than 10 times using the PSAP beads. Therefore, the enhanced PSAP beads provide a low-cost and efficient sample pretreatment and storage method that is feasible and practicable for large-scale surveillance of viral pathogens in water samples.

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“…The MS2 virus, which is not a pathogenic agent and has also been studied in previous research [22][23][24], was used in this study as a surrogate for pathogenic viruses. It is an Fspecific RNA virus with a size of 24-26 nm [25], a hydrophobic protein coat and an isoelectric point of 4.1.…”

Section: Introductionmentioning

confidence: 99%

Role of biofilm on virus inactivation in limestone aquifers: implications for managed aquifer recharge

Esfahani

Batelaan

Hutson

et al. 2020

J Environ Health Sci Engineer

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Background Virus, as nano-sized microorganisms are prevalent in aquifers, which threaten groundwater quality and human health wellbeing. Virus inactivation by attachment onto the limestone surfaces is a determining factor in the transport and retention behavior of virus in carbonaceous aquifers. Methods In the present study, the inactivation of MS2 -as a model virus-by attachment onto the surfaces of limestone grains was investigated in a series of batch experiments under different conditions such as limestone particle size distribution (0.25-0.50, 0.5-1 and 1-2 mm), treated wastewater and RO water, temperature (4 and 22 °C), initial MS2 concentrations (10 3 -10 7 PFU/mL) and static and dynamic conditions. The experimental data of MS2 inactivation was also fitted to a non-linear kinetic model with shoulder and tailing. The characteristics of biofilm on the surfaces of limestone aquifer materials were assessed using scanning electron microscopy (SEM) and confocal laser scanning microscopy (CLSM). ResultsThe inactivation rate of virus decreased with increasing the adsorbent diameter. Furthermore, virus inactivation was greater at room temperature (22 °C) than 4 °C, in both static and dynamic conditions. The inactivation of virus via attachment onto the limestone aquifer materials in dynamic conditions was higher than under static conditions. In addition, fitting the experimental data with a kinetic model showed that virus inactivation was high at higher temperature, smaller limestone grains and dynamic conditions. Moreover, the experiments with treated wastewater showed that in authentic aqueous media, the virus inactivation was considerably higher than in RO water, due to the presence of either monovalent or divalent cations and surface roughness created by biofilms. Conclusion Finally, in terms of managed aquifer recharge systems, the presence of biofilm increases bacteria and virus retention onto the aquifer surfaces.

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Infectivity reduction efficacy of UV irradiation and peracetic acid-UV combined treatment on MS2 bacteriophage and murine norovirus in secondary wastewater effluent

Cited by 28 publications

References 42 publications

New food safety challenges of viral contamination from a global perspective: Conventional, emerging, and novel methods of viral control

New food safety challenges of viral contamination from a global perspective: Conventional, emerging, and novel methods of viral control

Self-Driven Pretreatment and Room-Temperature Storage of Water Samples for Virus Detection Using Enhanced Porous Superabsorbent Polymer (PSAP) Beads

Role of biofilm on virus inactivation in limestone aquifers: implications for managed aquifer recharge

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