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Enhanced virus inactivation by copper and silver ions in the presence of natural organic matter in water.
Soliman, Mona Y M; Medema, Gertjan; van Halem, Doris.
Afiliación
  • Soliman MYM; Department of Water Management, Delft University of Technology, Stevinweg 1, 2628 CN Delft, the Netherlands. Electronic address: M.Y.M.Soliman@tudelft.nl.
  • Medema G; Department of Water Management, Delft University of Technology, Stevinweg 1, 2628 CN Delft, the Netherlands; KWR Watercycle Research Institute, P.O. Box 1072, 3430 BB Nieuwegein, the Netherlands.
  • van Halem D; Department of Water Management, Delft University of Technology, Stevinweg 1, 2628 CN Delft, the Netherlands.
Sci Total Environ ; 882: 163614, 2023 Jul 15.
Article en En | MEDLINE | ID: mdl-37086991
Natural organic matter (NOM) is present in water matrix that serves as a drinking water source. This study examined the effect of low and high NOM concentrations on inactivation kinetics of a model RNA virus (MS2) and a model DNA virus (PhiX 174) by copper (Cu2+) and/or silver (Ag+) ions. Cu and Ag are increasingly applied in household water treatment (HHWT) systems. However, the impact of NOM on their inactivation kinetics remains elusive despite its importance for their application. The presence of NOM in water led to faster virus inactivation by Cu2+ but slower by Ag+. The fastest inactivation kinetics of MS2 (Kobs = 4.8 h-1) were observed by Cu in water containing high NOM (20 mg C/L). Meanwhile, for PhiX 174, the fastest inactivation kinetics (av. Kobs = 3.5 h-1) were observed by Cu and Ag synergism in water containing high NOM. Altogether, it can be concluded that the combination of Cu and Ag is promising as a virus disinfectant in treatment options allowing for multiple hours of residence time such as safe water storage tanks.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Purificación del Agua / Cobre Idioma: En Revista: Sci Total Environ Año: 2023 Tipo del documento: Article Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Purificación del Agua / Cobre Idioma: En Revista: Sci Total Environ Año: 2023 Tipo del documento: Article Pais de publicación: Países Bajos