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    STUDIA CHEMIA - Issue no. 1-2 / 2001  
         
  Article:   ELECTROFILTRATION. THE INFLUENCE OF AN ELECTRICAL FIELD ON FILTRATION.

Authors:  A. GHIRIŞAN, K. WEBER, W. STAHL. 		 
       
         
  Abstract:  The combination of mechanical and electrical filtration was examined on a new laboratory filtration equipment (with a double-sided filtration cell) at the University of Karlsruhe, Germany. This method seems to lead to enhance of the filtration kinetics. The electrofiltration experiments with quartz sand (average particle size d50% = 2 m) in tap water of Karlsruhe (conductivity   700 S/cm) showed that the electrokinetic effects (electrophoresis and electroosmosis) accelerate the kinetic of the pressure filtration. However, on the residual moisture the electrical field has only a very small influence (the residual moisture remains as in the case of simple pressure filtration around 33-35%).  
         
     
         
         
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