Applicability of pepper mild mottle virus and cucumber green mottle mosaic virus as process indicators of enteric virus removal by membrane processes at a potable reuse facility

Yasui, Midori; Iso, Hikaru; Torii, Shotaro; Matsui, Yasuhiro; Katayama, Hiroyuki

doi:10.1016/j.watres.2021.117735

Cited by 10 publications

(6 citation statements)

References 51 publications

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“…PMMoV and CGMMV, which were found in all Tmrelated samples, infect plants and cause crop diseases [32]. These plant viruses, which are commonly detected in human feces and wastewater, serve as indicators of enteric viruses and microbial source tracking in wastewater treatment [33][34][35][36]. As these plant viruses possess exceptional stability in water and diverse environmental conditions, their presence in Tm-related samples is thought to originate from wastewater.…”

Section: Discussionmentioning

confidence: 99%

Detection of human enteric viral genes in a non-native winter crane fly, Trichocera maculipennis (Diptera) in the sewage treatment facilities in Antarctic stations

Lee,

Kim,

Kang

et al. 2024

Preprint

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Background The Antarctic environment is susceptible to the introduction of non-native species due to its unique ecosystem, which has evolved under geographical isolation and extreme climatic conditions over an extended period. The non-native winter crane fly, Trichocera maculipennis, which was recently introduced to maritime Antarctica, is likely to pose a serious threat to the Antarctic ecosystem. In this study, the possibility of the mechanical transmission of viruses was evaluated. Methods The possibility of the mechanical transmission of viruses was evaluated using next-generation sequencing (NGS), quantitative polymerase chain reaction (qPCR), and virus isolation methods from T. maculipennis (Tm)-related samples (Tm body-wash fluid and Tm homogenate) collected from habitats and sewage treatment facilities located at three research stations in Antarctica. Results Our findings revealed the presence of human adenovirus (AdV) and human endogenous retrovirus (HERV) in Tm-related samples through virome analysis. Notably, these viruses are commonly detected in human feces. In addition, we identified pepper mild mottle virus (PMMoV) and cucumber green motortle mosaic virus (CGMMV), which are known indicators of enteric viruses, in all Tm-related samples. It is postulated that these viruses originated from wastewater, as evidenced by their detection in the wastewater samples. However, the minute quantities of AdV and HERV genomes detected in Tm-related samples through qPCR, coupled with the observed non-viability of AdV, indicate that T. maculipennis has limited potential for mechanical transmission. Conclusions Our study represents the first evaluation of the potential risk of non-native species serving as vectors for pathogens in Antarctica despite the relatively low quantities of detected viruses. This study provides valuable insights for further risk assessments of non-native species that are newly introduced or are likely to be introduced to Antarctica due to climate change or increased human activity.

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Section: Discussionmentioning

confidence: 99%

Detection of human enteric viral genes in a non-native winter crane fly, Trichocera maculipennis (Diptera) in the sewage treatment facilities in Antarctic stations

Lee,

Kim,

Kang

et al. 2024

Preprint

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“…Ultrafiltration (UF) processes represent a water purification method that is able to achieve relative energy savings, and which is widely used in biological protein separation, medical treatments, and wastewater purification [ 1 , 12 , 13 , 14 ]. Based on the interception effect of UF membranes on organics with different molecular weights, these processes can be adopted to separate macromolecular organics such as proteins, nucleic acids, polysaccharides, humic acids (HAs), and bacteria in wastewater purification [ 12 , 13 , 15 , 16 , 17 , 18 , 19 ]. Yasui et al reported that adopting UF strategies to remove the median of viruses can achieve 2.9 log, much lower than the indicators of human enteroviruses [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

“…Based on the interception effect of UF membranes on organics with different molecular weights, these processes can be adopted to separate macromolecular organics such as proteins, nucleic acids, polysaccharides, humic acids (HAs), and bacteria in wastewater purification [ 12 , 13 , 15 , 16 , 17 , 18 , 19 ]. Yasui et al reported that adopting UF strategies to remove the median of viruses can achieve 2.9 log, much lower than the indicators of human enteroviruses [ 19 ]. UF still has incalculable potential in the separation field in the future due to its advantages, such as good retention performance, high recovery rate, fast filtration speed, wide application environment, low cost, no phase transfer, and no introduction of new impurities [ 13 , 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

Reduction of Ultrafiltration Membrane Fouling by the Pretreatment Removal of Emerging Pollutants: A Review

Zhang

Yuan

et al. 2023

Membranes

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Ultrafiltration (UF) processes exhibit high removal efficiencies for suspended solids and organic macromolecules, while UF membrane fouling is the biggest obstacle affecting the wide application of UF technology. To solve this problem, various pretreatment measures, including coagulation, adsorption, and advanced oxidation, for application prior to UF processes have been proposed and applied in actual water treatment processes. Previously, researchers mainly focused on the contribution of natural macromolecular pollutants to UF membrane fouling, while the mechanisms of the influence of emerging pollutants (EPs) in UF processes (such as antibiotics, microplastics, antibiotic resistance genes, etc.) on membrane fouling still need to be determined. This review introduces the removal efficiency and separation mechanism for EPs for pretreatments combined with UF membrane separation technology and evaluates the degree of membrane fouling based on the UF membrane’s materials/pores and the structural characteristics of the cake layer. This paper shows that the current membrane separation process should be actively developed with the aim of overcoming specific problems in order to meet the technical requirements for the efficient separation of EPs.

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Section: Introductionmentioning

confidence: 99%

“…13,24 Although current RO systems achieve virus rejection higher than 4 and 5 log 10 , some degree of virus advection can occur. 25,26 Novel membranes have been intensively studied for higher virus removal efficiencies. 19,23,[27][28][29][30][31] Our intension was to develop highly efficient waterpermeable membranes based on liquid-crystalline (LC) molecular order.…”

Section: Introductionmentioning

confidence: 99%

Development of liquid-crystalline smectic nanoporous membranes for the removal of SARS-CoV-2 and waterborne viruses

Sakamoto,

Asakura,

Kang

et al. 2023

J. Mater. Chem. A

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Applicability of pepper mild mottle virus and cucumber green mottle mosaic virus as process indicators of enteric virus removal by membrane processes at a potable reuse facility

Cited by 10 publications

References 51 publications

Detection of human enteric viral genes in a non-native winter crane fly, Trichocera maculipennis (Diptera) in the sewage treatment facilities in Antarctic stations

Detection of human enteric viral genes in a non-native winter crane fly, Trichocera maculipennis (Diptera) in the sewage treatment facilities in Antarctic stations

Reduction of Ultrafiltration Membrane Fouling by the Pretreatment Removal of Emerging Pollutants: A Review

Development of liquid-crystalline smectic nanoporous membranes for the removal of SARS-CoV-2 and waterborne viruses

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