About: Biocide Modification of Ultrafiltration Membranes 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)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://www.tandfonline.com/doi/abs/10.1080/19443994.2014.981923?mobileUi=0&journalCode=tdwt20&#.VQALW_mG-An
Description	Membrane biofouling has a negative effect on membrane performance. Commercial ultrafiltration (UF) membranes were therefore modified using polymeric nanofibers in order to gain additional water treatment functionality. In this case, membrane surface was modified using biocidal electrospun polyurethane nanofibers. It has been found that the inorganic silver in form of reduced silver nitrate is a feasible modification of nanofiber structure, and electrospinning conditions were optimized to maximize silver particle content. Two possible methods were verified for preparing composite UF membranes with antibacterial properties using: (a) direct nanofiber deposition and (b) thermal pressure lamination. Hydrodynamic properties of the developed membranes were tested on an AlfaLaval M10 unit. It has been 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 Escherichia coli while concurrently monitoring how the added silver leached from the nanofiber layer. The results indicate that UF 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 (UF) membranes were therefore modified using polymeric nanofibers in order to gain additional water treatment functionality. In this case, membrane surface was modified using biocidal electrospun polyurethane nanofibers. It has been found that the inorganic silver in form of reduced silver nitrate is a feasible modification of nanofiber structure, and electrospinning conditions were optimized to maximize silver particle content. Two possible methods were verified for preparing composite UF membranes with antibacterial properties using: (a) direct nanofiber deposition and (b) thermal pressure lamination. Hydrodynamic properties of the developed membranes were tested on an AlfaLaval M10 unit. It has been 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 Escherichia coli while concurrently monitoring how the added silver leached from the nanofiber layer. The results indicate that UF 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 Using Nanofiber Structures Biocide Modification of Ultrafiltration Membranes Using Nanofiber Structures (en)
skos:prefLabel	Biocide Modification of Ultrafiltration Membranes Using Nanofiber Structures Biocide Modification of Ultrafiltration Membranes Using Nanofiber Structures (en)
skos:notation	RIV/46747885:24620/14:#0000569!RIV15-MSM-24620___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(LO1201)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Lederer, Tomáš Dolina, Jan Jiříček, Tomáš
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
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	5306
http://linked.open...ai/riv/idVysledku	RIV/46747885:24620/14:#0000569
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Composite membranes; Biofouling; Ultrafiltration; Nanofibers; Silver; Biocide properties; Water treatment (en)
http://linked.open.../riv/klicoveSlovo	Silver Water treatment Composite membranes Ultrafiltration Nanofibers Biocide properties Biofouling
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[506DF8671FBA]
http://linked.open...i/riv/nazevZdroje	Desalination and Water Treatment
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
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	2014
http://linked.open...iv/tvurceVysledku	Lederer, Tomáš Dolina, Jan Jiříček, Tomáš
issn	1944-3986
number of pages	7 (xsd:int)
http://localhost/t...ganizacniJednotka	24620

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