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The Influence of Inorganic Ions on the Zeta-potential of Titanium Dioxide Dispersion and Its Microfiltration Process
Authors: Velikovská Pavlína | Mikulášek Petr
Year: 2006
Type of publication: článek v odborném periodiku
Name of source: Desalination
Publisher name: Elsevier Science BV
Place: Amsterdam
Page from-to: 292-293
Titles:
Language Name Abstract Keywords
cze Vliv anorganických iontů na zeta potenciál disperzí oxidu titaničitého a průběh mikrofiltrace této disperze V rámci práce byl studován vliv přídavku různých solí na cross-flow mikrofiltraci oxidu titaničitého. Byla provedena série experimentů; měněnými parametry byly: pH, iontová síla a druh přidané soli. Oxid titaničitý;Membrane;Mikrofiltrace;Izoelektrický bod;Iontová síla
eng The Influence of Inorganic Ions on the Zeta-potential of Titanium Dioxide Dispersion and Its Microfiltration Process Effects of inorganic salts on ceramic membrane microfiltration of TiO2 suspensions were studied. A series of crossflow microfiltration experiments were carried out at various pH values, ionic strengths and with various multivalent inorganic salts. Filtration behaviours were analyzed based on measurements of particle size distribution of the TiO2 suspension, zeta potential of alumina membrane and TiO2 particle. Results showed that inorganic solution salts affect the microfiltration of TiO2 suspension by changing the surface properties of both the alumina membrane and TiO2 particle. The solution environments affect the dispersion of TiO2 particles and played a major role in the filtration flux. The aim of this work is measuring of the intensity of permeate flux as a function of pH, various multivalent inorganic salts, salt concentration, and the study of the influence of these parameters on the separation efficiency, respectively. Titanium dioxide;Ceramic membrane;Microfiltration;Isoelectric point;Ionic strength