The Influence of Electrochemical Properties of Membranes and Dispersions on Microfiltration

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F11%3A39892300" target="_blank" >RIV/00216275:25310/11:39892300 - 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

The Influence of Electrochemical Properties of Membranes and Dispersions on Microfiltration

Popis výsledku v původním jazyce

The influence of particle shape, zeta-potential and size with change of pH and ionic strength on permeate flux during the microfiltration of model dispersions on flat sheet ceramic membranes (ZrO2, mean size of pores 0.2 mikrons) have been studied. The experiments include measurement of the basic characteristics of model dispersions. The description of the experimental system is also presented. The results of the experiments show that zeta-potential of particles have indispensable impact on the permeateflux. This phenomenon is especially pronounced during the microfiltration of dispersion in the area close to isoelectric point of dispersion, when the value of permeate flux increased to double value of non-treated dispersion. This phenomenon has causedthe particle interaction. In the area close to isoelectric point the dispersion had tendency to instability, particles tend to aggregate. It resulted in a higher porosity of filter cake and thereby to a higher value of the permeate flux

Název v anglickém jazyce

The Influence of Electrochemical Properties of Membranes and Dispersions on Microfiltration

Popis výsledku anglicky

The influence of particle shape, zeta-potential and size with change of pH and ionic strength on permeate flux during the microfiltration of model dispersions on flat sheet ceramic membranes (ZrO2, mean size of pores 0.2 mikrons) have been studied. The experiments include measurement of the basic characteristics of model dispersions. The description of the experimental system is also presented. The results of the experiments show that zeta-potential of particles have indispensable impact on the permeateflux. This phenomenon is especially pronounced during the microfiltration of dispersion in the area close to isoelectric point of dispersion, when the value of permeate flux increased to double value of non-treated dispersion. This phenomenon has causedthe particle interaction. In the area close to isoelectric point the dispersion had tendency to instability, particles tend to aggregate. It resulted in a higher porosity of filter cake and thereby to a higher value of the permeate flux

Druh

C - Kapitola v odborné knize

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

2011

Kód důvěrnosti údajů

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

Název knihy nebo sborníku

Expanding Issues in Desalination

ISBN

978-953-307-624-9

Počet stran výsledku

16

Strana od-do

181-196

Počet stran knihy

412

Název nakladatele

InTech

Místo vydání

Rijeka

Kód UT WoS kapitoly

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