Abstract
Ceramic membranes, different in pore size and membrane material, were applied to remove particulate and dissolved matter from different spent filter backwash water types as well as from dam water. The study was conducted in pilot scale under conditions typical for waterworks at a dam water treatment plant. A comparison of different ceramic membranes implied that total membrane resistance was more influenced by feed water type and by operation than by membrane type for the waters tested. Nevertheless, ceramic membranes seem to accumulate during operation less organic foulants especially polysaccharides compared to organic membranes leading to lower total membrane resistances for ceramic membranes during filtration process. Ceramic membranes may be considered to be applicable to treat spent filter backwash water as well as source water in public water supply.
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