quartz suspensions electrofiltration

Saveyn, Hans, Paul Van der Meeren, R HOFMANN, and W STAHL. 2005. "Modelling Two-Sided Electrofiltration of Quartz Suspensions: Importance of Electrochemical Reactions." In Proceedings of the FILTECH 2005 Conference, Wiesbaden, Germany. Vol I, 266–274.

Electrofiltration experiments using both buffered and unbuffered quartz suspensions revealed the importance of electrochemical effects and the migration of …

Electrofiltration of silica nanoparticle-containing wastewater using tubular ceramic membranes

Combination of crossflow and electric field for microfiltration of protein/microbial cell suspensions Ching-Jung Chuang*, Chen-Yi Wu, Chia-Chun Wu R&D Center for Membrane Technology and Department of Chemical Engineering, Chung Yuan University, Chungli 320, Taiwan Tel. þ886 (3) 2654114; Fax þ886 (3) 2654199; …

ABSTRACT An attempt is made to elucidate the electrochemical aspects of the electroosmotic dewatering (EOD) of clays as reported in some recent work, especially that on interrupted DC power electroosmotic dewatering published by Rabie, Mujumdar and Weber (2). These authors showed that the dewatering by EOD stops after the DC power …

Because the flow resistance increases with decreasing particle size, the mechanical dewatering of fine particle suspensions is time-consuming. The electrofiltration potential increases with the particle surface area. In this way the combination of mechanical and electrical filtration seems to be an effective method to …

Filtration under constant D. C. electric field with constant hydraulic pressure, what is termed electrokinetic filtration, was discussed in this paper. Under these conditions it is considered that electrophoresis occurs in the slurry and causes less cake formation, and that electroosmosis occurs at the same time in the filter cake. Therefore, the flow rate of …

A mathematical model was developed to include gravitational sedimentation of particles and electrolytic gas in electrofiltration theory. The model successfully represented electrofiltration data obtained from kaolin suspensions with a laboratory horizontal filter. Electrolytic gas contributed to an increase of 13% in electrofiltration rate.

DOI: 10.1016/J.MEMSCI.2012.02.054 Corpus ID: 97162251; Combined effects of operational parameters on electro-ultrafiltration process characteristics @article{Hakimhashemi2012CombinedEO, title={Combined effects of operational parameters on electro-ultrafiltration process characteristics}, author={Maryam …

The electrofiltration performance of non-circular ceramic membranes using whey suspensions is investigated and appraised with reference to (i) permeate flux and (ii) whey removals.

Methodology. Laboratory Techniques and Procedures. Filtration. Improvement of Filtration Kinetics by Pressure Electrofiltration. DOI: 10.1016/S1383-5866 (01)00118 …

Modelling two-sided electrofiltration of quartz suspensions: importance of electrochemical reactions. Proceedings of the FILTECH 2005 Conference, Wiesbaden, …

Various laboratory-scale research results have shown that electrofiltration greatly enhanced the filtration kinetics of aqueous suspensions of anatase [7], quartz sand [8], and kaolin [9]. A similar finding was also obtained in a pilot-scale electrofiltration of SiO 2 using a polyamide membrane with a 0.2-μm pore size [10].

INTRODUCTION TO MEMBRANE SEPARATIONS. K. Scott, in Handbook of Industrial Membranes (Second Edition), 1995 Electrofiltration. Electrofiltration is membrane separation driven by the application of a differential pressure and an electrical potential gradient across the membrane. This potential facilitates the transport of mobile ions and …

Filtration combined with an electric field (electrofiltration) enhances the filtration kinetics of aqueous suspensions. Although electrophoresis and electroosmosis largely contribute to electrofiltration behavior, side effects such as water ... quartz sand (Weber and Stahl, 2002), calcium carbonate A DC electric field can also increase the ...

Saveyn, Hans, Paul Van der Meeren, R HOFMANN, and W STAHL. 2005. "Modelling Two-Sided Electrofiltration of Quartz Suspensions: Importance of Electrochemical Reactions." In Proceedings of the FILTECH 2005 Conference, Wiesbaden, Germany. Vol I, 266–74.

Electrofiltration utilises the charge of particle surfaces to improve the filtration operation. In an electric field colloidal particles move through electrophoresis, thereby influencing (in this case) the growth of the filter cake (Moulik, 1971). ... Modelling two-sided electrofiltration of quartz suspensions: importance of electrochemical ...

Additionally to biopolymer suspensions many research groups investigated dead-end electrofiltration of mineral suspensions [49, 66, 73, ... (2005) Modelling two-sided electrofiltration of quartz suspensions: importance of electrochemical reactions. Chem Eng Sci 60(23):6768–6779. CAS Google Scholar

Electrofiltration of Aqueous Suspensions. September 2000; Journal of Colloid and ... the effect of electric fields applied to a quartz sand bed on electrokinetics and the disinfection performance ...

Similar observed behavior during electrofiltration has been reported in literature for different types of suspensions [38,50,61,66]. The total quantity of filtrate obtained after 150 min of electrofiltration (EF-total) was higher (141.52 ± 6.09 mL) than that obtained by pressure filtration (F-total) (111.84 ± 10.18 mL).

Electrofiltration experiments using both buffered and unbuffered quartz suspensions revealed the importance of electrochemical effects and the migration of hydroxide ions and especially protons into the filter chamber, altering the cake surface properties and even influencing the suspension particle flocculation state and as such the cake ...

In the past, various laboratory-scale research results have shown that electrofiltration greatly enhanced the filtration of aqueous suspensions of anatase [1], quartz sand [2], and kaolin [3]. A ...

The results showed that quartz is composed of 99.5% SiO 2 and 0.0038% Al 2 O 3. Quartz suspensions were prepared by adding appropriate amounts of quartz powder into 250 mL distilled water to obtain a solid concentration of 0.32 g/L in suspension. The natural pH value of the prepared suspension was about 4.

DOI: 10.1016/J.CES.2005.05.058 Corpus ID: 93144772; Modelling two-sided electrofiltration of quartz suspensions: Importance of electrochemical reactions …

Another attempt of viability of electrofiltration (fiber filter under 80 V of electrical field) on buffered quartz suspensions (10% v/v, and particle diameter of 2 …

A theoretical analysis based on integral method for quantification of the permeate flux and mass transfer coefficient in gel layer controlled electric…

Zugehörige Institution(en) am KIT: Institut für Mechanische Verfahrenstechnik und Mechanik (MVM) Publikationstyp: Buchaufsatz: Publikationsjahr: 2005

Electrofiltration technique for water and wastewater treatment and bio-products management: a review. J. Water Process Eng. ... Modelling two-sided electrofiltration of quartz suspensions: importance of electrochemical reactions. Chem. Eng. Sci. (2005) W. Feng et al. Fabrication of SiCf-CNTs/SiC composites with high …

The model successfully represented electrofiltration data obtained from kaolin suspensions with a laboratory horizontal filter. Electrolytic gas contributed to an increase of 13% in electrofiltration rate. ... kaolin (Vorobiev and Jany, 1999 ), quartz sand (Weber and Stahl, 2002 ), calcium carbonate (Yukawa et al., 1976 ), and for biological ...

The relation of applied pressure-height of piston during pressure filtration was measured for aqueous 7 vol.% suspensions of positively charged 150 nm alumina particles at 0.2 mm/min of crosshead speed of piston.The dispersed suspension changed to a flocculated suspension at a critical applied pressure (phase transition pressure, ΔP tc), …

Electrofiltration experiments using both buffered and unbuffered quartz suspensions revealed the importance of electrochemical effects and the migration of hydroxide ions and especially protons into the filter chamber, altering the cake surface properties and even influencing the suspension particle flocculation state and as such the cake ...

Electrofiltration experiments using both buffered and unbuffered quartz suspensions revealed the importance of electrochemical effects and the migration of hydroxide ions and especially protons ...

Zugehörige Institution(en) am KIT: Institut für Mechanische Verfahrenstechnik und Mechanik (MVM) Publikationstyp: Zeitschriftenaufsatz: Publikationsjahr

The manufacture of Gr/PAN conductive membranes with superior electrofiltration capabilities is made safe and efficient by the concepts and evidence presented in this work. ... /PPy and the Membrane Antifouling Property in Filtrating Yeast Suspensions in EMBR. Procedia Eng. (2012) Y. Li et al. Performance of carbon fiber …

removal of fine particles from nonaqueous media by cross-flow electrofiltration-hydrodynamics and mass transfer. Particulate Science and Technology 1983, 1 (1), 27-53.