Enhanced retention of bacteria by TiO2 nanoparticles in saturated porous media

Gentile, Guillermina José; Fidalgo de Cortalezzi, María Marta

artículo de publicación periódica.page.titleprefix
Enhanced retention of bacteria by TiO2 nanoparticles in saturated porous media

dc.contributor.author	Gentile, Guillermina José
dc.contributor.author	Fidalgo de Cortalezzi, María Marta
dc.date	info:eu-repo/date/embargoEnd/2018-08-01
dc.date.accessioned	2020-10-28T15:55:37Z
dc.date.available	2020-10-28T15:55:37Z
dc.date.issued	2016-08
dc.description.abstract	"The simultaneous transport of TiO2 nanoparticles and bacteria Pseudomonas aeruginosa in saturated porous media was investigated. Nanoparticle and bacterium size and surface charge were measured as a function of electrolyte concentration. Sand column breakthrough curves were obtained for single and combined suspensions, at four different ionic strengths. DLVO and classical filtration theories were employed to model the interactions between particles and between particles and sand grains. Attachment of TiO2 to the sand was explained by electrostatic forces and these nanoparticles acted as bonds between the bacteria and the sand, leading to retention. Presence of TiO2 significantly increased the retention of bacteria in the sand bed, but microorganisms were released when nanomaterial influx ceased. The inclusion of nanomaterials in saturated porous media may have implications for the design and operation of sand filters in water treatment."	en
dc.identifier.issn	0169-7722
dc.identifier.uri	http://ri.itba.edu.ar/handle/123456789/3218
dc.language.iso	en	en
dc.relation	info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jconhyd.2016.05.004
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject	NANOPARTICULAS	es
dc.subject	DIOXIDO DE TITANIO	es
dc.subject	BACTERIAS	es
dc.subject	PSEUDOMONAS AERUGINOSA	la
dc.subject	TRATAMIENTO DEL AGUA	es
dc.subject	FILTRACION	es
dc.title	Enhanced retention of bacteria by TiO2 nanoparticles in saturated porous media	en
dc.type	Artículos de Publicaciones Periódicas	es
dc.type	info:eu-repo/semantics/acceptedVersion
dspace.entity.type	Artículo de Publicación Periódica
itba.description.filiation	Fil: Gentile, Guillermina José. Instituto Tecnológico de Buenos Aires; Argentina.
itba.description.filiation	Fil: Fidalgo de Cortalezzi, María Marta. University of Missouri--Columbia; Estados Unidos.