Influence of ionic strength and pH of dispersed systems on microfiltration

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F09%3A00008622" target="_blank" >RIV/00216275:25310/09:00008622 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Influence of ionic strength and pH of dispersed systems on microfiltration
Original language description
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 microm) have been studied. The experiments show that zeta-potential of particles have indispensable impact on the permeate flux. 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 caused the 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 and lower value of the filter cake resistance.
Czech name
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Czech description
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Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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