Virus removal by iron coagulation–microfiltration

Zhu, Bintuan; Clifford, Dennis; Chellam, Shankararaman

doi:10.1016/j.watres.2005.09.035

Cited by 104 publications

(77 citation statements)

References 12 publications

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“…include coagulation with metal salts (Zhu et al, 2005) and inactivation with chlorine, ozone, and ultraviolet light (Thurston-Enriqueza et al, 2005). A 4-log removal of MS2…”

Section: Two Effective Methods For Increasing Virus Removal Efficiencmentioning

confidence: 99%

“…Two particular problems arise with the effective virus removal methods. When viruses are coagulated with metal salts, they are incorporated into the settled floes; they are not inactivated (Zhu et al, 2005). Thus, the viruses incorporated into floes will later be incorporated into fertilizers used on agricultural fields.…”

Section: Two Effective Methods For Increasing Virus Removal Efficiencmentioning

confidence: 99%

“…The use of microfiltration and ultrafiltration to remove viruses from water and wastewater is limited by the small size of viruses compared to the relatively large pore size of the membranes (Zhu et al, 2005). Also, membrane surface imperfections can increase the possibility of virus penetration during filtration (Bellara et al, 1998).…”

Section: Virus Removal Using Ultrafiltration Membranesmentioning

confidence: 99%

“…Silver ions have been shown to be effective antiviral agents towards MS2 (Yahya et al, 1992;Kim et al, 2008), a common indicator of enteroviruses used in water treatment models (Zhu et al, 2005). Although virus inactivation rates for Ag + are slower than those for free chlorine (10°0 1 /min for 40 ug/L Ag + vs. 10 335 /min for 0.2 ug/L free chlorine), the inactivation rate may be enhanced through the use of UV light (Yahya et al, 1992;Zhu et al, 2005). Thus, Ag + /UV may be used for virus inactivation as a chlorine alternative.…”

Section: Antibacterial and Antiviral Properties Of Silver Nanoparticlmentioning

confidence: 99%

“…MS2 is a singlestranded RNA virus that is commonly used as an indicator for enteric viruses and is similar in size, shape, and nucleic acid content to common human pathogens, including the hepatitis A virus and poliovirus (Zhu et al, 2005). Additionally, because MS2 is one of the smaller viruses, it can often act as a worst-case scenario for membrane filtration (Zhu et al, 2005). Bacteriophage MS2 was propagated according to a previously published method (Zhu et al, 2005) with minor modifications.…”

Section: Virus Removal By Nag-psf Membranesmentioning

confidence: 99%

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Polysulfone ultrafiltration membranes impregnated with silver nanoparticles show improved biofouling resistance and virus removal

et al. 2009

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“…include coagulation with metal salts (Zhu et al, 2005) and inactivation with chlorine, ozone, and ultraviolet light (Thurston-Enriqueza et al, 2005). A 4-log removal of MS2…”

Section: Two Effective Methods For Increasing Virus Removal Efficiencmentioning

confidence: 99%

Section: Two Effective Methods For Increasing Virus Removal Efficiencmentioning

confidence: 99%

Section: Virus Removal Using Ultrafiltration Membranesmentioning

confidence: 99%

Section: Antibacterial and Antiviral Properties Of Silver Nanoparticlmentioning

confidence: 99%

Section: Virus Removal By Nag-psf Membranesmentioning

confidence: 99%

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Polysulfone ultrafiltration membranes impregnated with silver nanoparticles show improved biofouling resistance and virus removal

et al. 2009

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Microfiltration

Chellam¹

2013

Encyclopedia of Membrane Science and Technology

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Microfiltration (MF) and ultrafiltration are popular in drinking water and wastewater treatment because integral membranes are absolute barriers for difficult‐to‐inactivate pathogenic protozoa, and the turbidity of membrane‐filtered water is well below current and anticipated regulations. The focus of this section is to provide a broad overview of MF from an environmental engineering viewpoint, including its capabilities and limitations, as it pertains to water and wastewater treatment, configuration and field testing of commercially available systems before full‐scale implementation, and mechanisms and control of fouling. Other industrial applications of microfiltration are also briefly discussed. Constant pressure and constant flux blocking laws to predict fouling mechanisms during dead‐end MF are briefly summarized. The use of chemical coagulation and electrochemical pretreatment to improve MF performance in terms of both fouling and filtered water quality (with respect to natural organic matter, disinfection by‐product precursors, and viruses) is also discussed.

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Microfiltration

2017

Science and Technology of Separation Membranes

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Virus removal by iron coagulation–microfiltration

Cited by 104 publications

References 12 publications

Polysulfone ultrafiltration membranes impregnated with silver nanoparticles show improved biofouling resistance and virus removal

Polysulfone ultrafiltration membranes impregnated with silver nanoparticles show improved biofouling resistance and virus removal

Microfiltration

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