Interaction of human adenoviruses and coliphages with kaolinite and bentonite

Bellou, Maria; Syngouna, Vasiliki I.; Tselepi, Maria A.; Kokkinos, Petros; Paparrodopoulos, Spyros; Vantarakis, Apostolos; Chrysikopoulos, Constantinos V.

doi:10.1016/j.scitotenv.2015.02.036

Cited by 53 publications

(34 citation statements)

References 79 publications

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“…Furthermore, the inactivation rates of suspended and attached viruses may be different (Gerba, 1984;Sim and Chrysikopoulos, 1996). However, Bellou et al (2015) reported that, under practically identical experimental conditions to those employed in this study, no significant hAdV35 inactivation could be observed neither in the presence nor the absence of clays. In the presence of TiO 2 NPs the possibility of hAdV35 inactivation by breaching of the capsid, followed by radical attack to DNA and core proteins, should not be eliminated (Liga et al, 2013).…”

Section: Analysis Of Experimental Datamentioning

confidence: 55%

“…Many studies have investigated the influence of just a single environmental variable on human adenovirus inactivation and attachment onto porous media (e.g. flow velocity, temperature, clay presence) (Wong et al, 2012;Pang et al, 2014;Kokkinos et al, 2015;Bellou et al, 2015). To our knowledge, to date, there has been no study on human adenovirus transport in saturated porous media in the presence of clay colloids and TiO 2 NPs.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Cotransport of human adenoviruses with clay colloids and TiO2 nanoparticles in saturated porous media: Effect of flow velocity

Syngouna

Chrysikopoulos

Kokkinos

et al. 2017

Science of The Total Environment

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Section: Analysis Of Experimental Datamentioning

confidence: 55%

Section: Introductionmentioning

confidence: 99%

Cotransport of human adenoviruses with clay colloids and TiO2 nanoparticles in saturated porous media: Effect of flow velocity

Syngouna

Chrysikopoulos

Kokkinos

et al. 2017

Science of The Total Environment

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“…In contrast, φX174 tended to be more negatively charged than MS2 in the filtered source water samples, as described above, probably owing to the difference in the solvent water quality. In fact, Bellou et al (2015) reported that the surface charges of MS2 and φX174 are almost the same at pH 7 when 2mM phosphate-buffered saline is used as the solvent.…”

Section: Relationships Between Enteric Virus Removal and Bacteriophagmentioning

confidence: 99%

Investigation of enteric adenovirus and poliovirus removal by coagulation processes and suitability of bacteriophages MS2 and φX174 as surrogates for those viruses

Shirasaki

Matsushita

Matsui

et al. 2016

Science of The Total Environment

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We evaluated the removal of enteric adenovirus (AdV) type 40 and poliovirus (PV) type 1 by coagulation, using water samples from 13 water sources for drinking water treatment plants in Japan. The behaviors of two widely accepted enteric virus surrogates, bacteriophages MS2 and φX174, were compared with the behaviors of AdV and PV. Coagulation with polyaluminum chloride (PACl, basicity 1.5) removed AdV and PV from virus-spiked source waters: the infectious AdV and PV removal ratios evaluated by means of a plaque-forming-unit method were 0.1-1.4-log10 and 0.5-2.4-log10, respectively. A nonsulfated high-basicity PACl (basicity 2.1) removed infectious AdV and PV more efficiently than did other commercially available PACls (basicity 1.5-2.1), alum, and ferric chloride. The MS2 removal ratios tended to be larger than those of AdV and PV, partly because of differences in the hydrophobicities of the virus particles and the sensitivity of the virus to the virucidal activity of PACl; the differences in removal ratios were not due to differences in the surface charges of the virus particles. MS2, which was more hydrophobic than the other viruses, was inactivated during coagulation with PACl. Therefore, MS2 does not appear to be an appropriate surrogate for AdV and PV during coagulation. In contrast, because φX174, like AdV and PV, was not inactivated during coagulation, and because the hydrophobicity of φX174 was similar to or somewhat lower than the hydrophobicities of AdV and PV, the φX174 removal ratios tended to be similar to or somewhat smaller than those of the enteric viruses. Therefore, φX174 is a potential conservative surrogate for AdV and PV during coagulation. In summary, the surface hydrophobicity of virus particles and the sensitivity of the virus to the virucidal activity of the coagulant are probably important determinants of the efficiency of virus removal during coagulation.

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“…These microbes were chosen because of their structural resemblance to many human enteric viruses and they have been used in numerous investigations as surrogates for human enteric viruses (Chu et al, 2003;Schijven and Hassanizadeh, 2000). It should be mentioned that recent studies have demonstrated that the transport and fate of human enteric viruses may not always be well correlated with that of bacteriophages (Bellou et al, 2015). Additional research is, therefore, warranted to identify the best surrogate for the transport and fate of pathogenic viruses, but this issue is beyond the scope of the present study.…”

Section: Virusesmentioning

confidence: 99%

Transport and fate of viruses in sediment and stormwater from a Managed Aquifer Recharge site

Sasidharan

Bradford

Šimůnek

et al. 2017

Journal of Hydrology

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a b s t r a c tEnteric viruses are one of the major concerns in water reclamation and reuse at Managed Aquifer Recharge (MAR) sites. In this study, the transport and fate of bacteriophages MS2, PRD1, and UX174 were studied in sediment and stormwater (SW) collected from a MAR site in Parafield, Australia. Column experiments were conducted using SW, stormwater in equilibrium with the aquifer sediment (EQ-SW), and two pore-water velocities (1 and 5 m day À1 ) to encompass expected behavior at the MAR site. The aquifer sediment removed >92.3% of these viruses under all of the considered MAR conditions. However, much greater virus removal (4.6 logs) occurred at the lower pore-water velocity and in EQ-SW that had a higher ionic strength and Ca 2+ concentration. Virus removal was greatest for MS2, followed by PRD1, and then UX174 for a given physicochemical condition. The vast majority of the attached viruses were irreversibly attached or inactivated on the solid phase, and injection of Milli-Q water or beef extract at pH = 10 only mobilized a small fraction of attached viruses (<0.64%). Virus breakthrough curves (BTCs) were successfully simulated using an advective-dispersive model that accounted for rates of attachment (k att ), detachment (k det ), irreversible attachment or solid phase inactivation (l s ), and blocking. Existing MAR guidelines only consider the removal of viruses via liquid phase inactivation (l l ). However, our results indicated that k att > l s > k det > l l , and k att was several orders of magnitude greater than l l . Therefore, current microbial risk assessment methods in the MAR guideline may be overly conservative in some instances. Interestingly, virus BTCs exhibited blocking behavior and the calculated solid surface area that contributed to the attachment was very small. Additional research is therefore warranted to study the potential influence of blocking on virus transport and potential implications for MAR guidelines.

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Interaction of human adenoviruses and coliphages with kaolinite and bentonite

Cited by 53 publications

References 79 publications

Cotransport of human adenoviruses with clay colloids and TiO2 nanoparticles in saturated porous media: Effect of flow velocity

Cotransport of human adenoviruses with clay colloids and TiO2 nanoparticles in saturated porous media: Effect of flow velocity

Investigation of enteric adenovirus and poliovirus removal by coagulation processes and suitability of bacteriophages MS2 and φX174 as surrogates for those viruses

Transport and fate of viruses in sediment and stormwater from a Managed Aquifer Recharge site

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