Ceramic membranes for water treatment

摘要

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