Investigation into the parameters influencing filter cakes produced by filtration

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Research Paper 01/03/2018
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Investigation into the parameters influencing filter cakes produced by filtration

Bornia Benouis, Hafida Boutefnouchet, Abdallah Hafsaoui
J. Bio. Env. Sci.12( 3), 304-314, March 2018.
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An experimental study was carried out to investigate the effect of particle size, solids concentration, and applied vacuum on both the apparent specific resistance and final moisture content of filter cakes. The results obtained from filtration test work indicated that the presence of fines particles in the feed suspension leads to a cake containing a large number of small pores which tended to trap water in the cake. Therefore a cake of high moisture content and specific resistance was obtained. As solids concentration in the suspension were increased both the moisture content and specific resistance decreased, however at high solids concentration the moisture content tended to level off and the apparent specific resistance tended to reach a constant minimum value. The dewatering test work was conducted using four samples of wider size range where the effect of ultrafine material was examined.


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