About: Biocide Modification of Ultrafiltration Membranes by Using Nanofiber Structures

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://www.lib.cas.cz/aleph-google/KNA01/00177/65/001776587.html
Description	Membrane biofouling has a negative effect on membrane performance. Commercial ultraﬁltration membranes were therefore modiﬁed using diﬀerent polymeric nanoﬁbers in order to gain additional water treatment functionality. Membrane surfaces were given biocide properties by adding electrospun nanoﬁber structures containing various forms of silver. It was found to be possible to combine colloidal zero-valent, organic, and inorganic silver with nanoﬁber structures and electrospinning conditions were optimized to maximize silver particle content. There were two possible methods for preparing composite ultraﬁltration membranes with antibacterial properties by using: (a) direct nanoﬁber deposition and (b) thermal pressure lamination. Hydrodynamic properties of the developed membranes were tested on an AlfaLaval M10 ultrafiltration unit. It was found that the added functionality comes at the expense of lower permeability. Biocide properties over both short- and long-term operation were confirmed through cultivation techniques and respirometry with E. coli while concurrently monitoring how the added silver leached from the nanoﬁber layer. The results indicate that ultraﬁltration membranes modiﬁcation using silver-treated nanoﬁbers is a promising technique worth future study and evaluation for advanced water treatment. Membrane biofouling has a negative effect on membrane performance. Commercial ultraﬁltration membranes were therefore modiﬁed using diﬀerent polymeric nanoﬁbers in order to gain additional water treatment functionality. Membrane surfaces were given biocide properties by adding electrospun nanoﬁber structures containing various forms of silver. It was found to be possible to combine colloidal zero-valent, organic, and inorganic silver with nanoﬁber structures and electrospinning conditions were optimized to maximize silver particle content. There were two possible methods for preparing composite ultraﬁltration membranes with antibacterial properties by using: (a) direct nanoﬁber deposition and (b) thermal pressure lamination. Hydrodynamic properties of the developed membranes were tested on an AlfaLaval M10 ultrafiltration unit. It was found that the added functionality comes at the expense of lower permeability. Biocide properties over both short- and long-term operation were confirmed through cultivation techniques and respirometry with E. coli while concurrently monitoring how the added silver leached from the nanoﬁber layer. The results indicate that ultraﬁltration membranes modiﬁcation using silver-treated nanoﬁbers is a promising technique worth future study and evaluation for advanced water treatment. (en)
Title	Biocide Modification of Ultrafiltration Membranes by Using Nanofiber Structures Biocide Modification of Ultrafiltration Membranes by Using Nanofiber Structures (en)
skos:prefLabel	Biocide Modification of Ultrafiltration Membranes by Using Nanofiber Structures Biocide Modification of Ultrafiltration Membranes by Using Nanofiber Structures (en)
skos:notation	RIV/46747885:24620/14:#0000573!RIV15-MSM-24620___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(ED0005/01/01), P(LO1201)
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Lederer, Tomáš Dolina, Jan Jiříček, Tomáš
http://linked.open.../riv/druhVysledku	O - Ostatní výsledky nezařaditelné do žádného z výše uvedených druhů výsledku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Technická univerzita v Liberci / Ústav pro nanomateriály, pokročilé technologie a inovace
http://linked.open...dnocenehoVysledku	5305
http://linked.open...ai/riv/idVysledku	RIV/46747885:24620/14:#0000573
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Composite membranes; Biofouling; Ultrafiltration; Nanofibres; Silver; Biocide properties; Water treatment (en)
http://linked.open.../riv/klicoveSlovo	Nanofibres Silver Water treatment Composite membranes Ultrafiltration Biocide properties Biofouling
http://linked.open...ontrolniKodProRIV	[82B371774270]
http://linked.open...in/vavai/riv/obor	DJ
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	DEVELOPMENT OF THE INSTITUTE FOR NANOMATERIALS, ADVANCED TECHNOLOGIES AND INNOVATION Centre for nanomaterials, advanced technologies and innovation
http://linked.open...UplatneniVysledku	2014
http://linked.open...iv/tvurceVysledku	Lederer, Tomáš Dolina, Jan Jiříček, Tomáš
http://localhost/t...ganizacniJednotka	24620

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