Filtration, vol.8, no.3, pp.226-231, 2008 (Scopus)
Buchner funnel filtration tests using an activated sludge obtained from a nearby wastewater treatment plant are analysed in the light of the multiphase filtration theory which states that the controlling factor in filtration is not the resistance of the cake but the resistance of the cake-septum interface. Experimental results indicated that the pore size of the filter medium strongly affects the filter performance.It is concluded that upflow Buchner funnel experiments must be carried out using an industrial scale filter medium.