Vliv iontové síly a pH zásobní disperze na mikrofiltraci

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F04%3A00001591" target="_blank" >RIV/00216275:25310/04:00001591 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Influence of Ionic Strength and pH of Dispersed Feeds on Microfiltration

Popis výsledku v původním jazyce

The influences of particle shape, zeta-potential and size with change of pH and ionic strength on permeate flux during the microfiltration of model dispersions (two different china clays with mean particle sizes 3.5 micrometers and 1.5 micrometers) on flat sheet ceramic membranes (ZrO2, mean size of pores 0.2 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 the cake 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 had tendency to instability and the particles tend to 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 double the valu

Název v anglickém jazyce

Influence of Ionic Strength and pH of Dispersed Feeds on Microfiltration

Popis výsledku anglicky

The influences of particle shape, zeta-potential and size with change of pH and ionic strength on permeate flux during the microfiltration of model dispersions (two different china clays with mean particle sizes 3.5 micrometers and 1.5 micrometers) on flat sheet ceramic membranes (ZrO2, mean size of pores 0.2 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 the cake 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 had tendency to instability and the particles tend to 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 double the valu

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

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 periodika

Scientific Papers of the University of Pardubice, Series A, Faculty of Chemical Technology

ISSN

1211-5541

e-ISSN

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Svazek periodika

Neuveden

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

12

Strana od-do

319-330

Kód UT WoS článku

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EID výsledku v databázi Scopus

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