Vliv NaCl na mikrofiltraci disperze anatasu

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The Influence of NaCl on Microfiltration of Anatase Dispersion

Popis výsledku v původním jazyce

The influences of zeta-potential and particle size with change of pH and ionic strength on permeate flux during the microfiltration of model dispersion (anatase with mean particle size 350 nm) on tubular ceramic membranes (alfa-Al2O3, mean size of pores0.1 micrometers) have been studied. The experimental filtration system and the dispersion characterisation experiments are presented. The results of the experiments show that zeta-potential of the particles has considerable impact on the magnitude of thecake resistance and hence on the permeate flux. The effects are especially pronounced during the microfiltration of dispersion in the area close to isoelectric point of dispersion, where the dispersion has tendency to instability and the particles tendto aggregate. The effects resulted in higher porosity filter cakes (deposits) and a lower value of filter cake resistance, and hence to a permeate flux that increased to more than double the value of a non-treated dispersion. The observed

Název v anglickém jazyce

The Influence of NaCl on Microfiltration of Anatase Dispersion

Popis výsledku anglicky

The influences of zeta-potential and particle size with change of pH and ionic strength on permeate flux during the microfiltration of model dispersion (anatase with mean particle size 350 nm) on tubular ceramic membranes (alfa-Al2O3, mean size of pores0.1 micrometers) have been studied. The experimental filtration system and the dispersion characterisation experiments are presented. The results of the experiments show that zeta-potential of the particles has considerable impact on the magnitude of thecake resistance and hence on the permeate flux. The effects are especially pronounced during the microfiltration of dispersion in the area close to isoelectric point of dispersion, where the dispersion has tendency to instability and the particles tendto aggregate. The effects resulted in higher porosity filter cakes (deposits) and a lower value of filter cake resistance, and hence to a permeate flux that increased to more than double the value of a non-treated dispersion. The observed

Druh

D - Stať ve sborníku

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2004

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of 31st International Conference of Slovak Society of Chemical Engineering

ISBN

80-227-2052-6

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

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Název nakladatele

Slovak Society of Chemical Engineering

Místo vydání

Bratislava, Slovensko

Místo konání akce

Tatranské Matliare, Slovensko

Datum konání akce

24. 5. 2004

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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