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Elimination of representative contaminant candidate list viruses, coxsackievirus, echovirus, hepatitis A virus, and norovirus, from water by coagulation processes

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Title: Elimination of representative contaminant candidate list viruses, coxsackievirus, echovirus, hepatitis A virus, and norovirus, from water by coagulation processes
Authors: Shirasaki, N. Browse this author →KAKEN DB
Matsushita, T. Browse this author
Matsui, Y. Browse this author →KAKEN DB
Murai, K. Browse this author
Aochi, A. Browse this author
Keywords: Bacteriophages
Coagulation
Contaminant candidate list virus
Enteric virus
Virus inactivation
Issue Date: 15-Mar-2017
Publisher: Elsevier
Journal Title: Journal of hazardous materials
Volume: 326
Start Page: 110
End Page: 119
Publisher DOI: 10.1016/j.jhazmat.2016.11.005
Abstract: We examined the removal of representative contaminant candidate list (CCL) viruses (coxsackievirus [CV] B5, echovirus type [EV] 11, and hepatitis A virus [HAV] IB), recombinant norovirus virus-like particles (rNV-VLPs), and murine norovirus (MNV) type 1 by coagulation. Water samples were subjected to coagulation with polyaluminum chloride (PACT, basicity 1.5) followed by either settling or settling and filtration. Together with our previously published results, the removal ratio order, as evaluated by a plaque-forming-unit method or an enzyme-linked immunosorbent assay after settling, was HAV > EV = rNV-VLPs >= CV = poliovirus type 1 = MNV> adenovirus type 40 (range, 0.1-2.7-log(10)). Infectious HAV was likely inactivated by the PACl and therefore was removed to a greater extent than the other viruses. A nonsulfated high-basicity PACl (basicity 2.1), removed the CCL viruses more efficiently than did two other sulfated PACls (basicity 1.5 or 2.1), alum, or ferric chloride. We also examined the removal ratio of two bacteriophages. The removal ratios for MS2 tended to be larger than those of the CCL viruses, whereas those for phi X174 were comparable with or smaller than those of the CCL viruses. Therefore, phi X174 may be a useful conservative surrogate for CCL viruses during coagulation.
Rights: © 2017, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
http://creativecommons.org/licenses/by-nc-nd/4.0/
Type: article (author version)
URI: http://hdl.handle.net/2115/73051
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 白崎 伸隆

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