A Ceramic Ultrafiltration Membrane System for Producing High Quality Drinking Water
In this study, ultrafiltration (UF) with ceramic membranes was used to produce safe and quality drinking water. The small scale UF membrane system had a capacity of 1.44 m3/d. The UF membrane filtration process includes two parts: a tubular ceramic membrane formed by a porous support (α-alumina) and a tube reactor chamber 10 m long and 5 cm in diameter to generate electrocoagulation. The system removed 75% to 85% of ferrous and turbidity contaminants. The decrease in pH, chloride and total hardness was similar, but ammonia and manganese removal was much lower than expected. Nevertheless, removal of total organic carbon (TOC) was the best—only 15% remained. The UF ceramic membrane filtration system produced water that met Turkish Standards (TS-266, regulated standards for drinking water in Turkey). Chemical cleaning with a clean-in-place (CIP) operation was successful in removing fouling and scaling materials in ultrafiltration UF ceramic membrane. The UF ceramic membrane filtration system produced water with no added chemicals as a coagulant and disinfectant. Indeed, producing water with no chemicals and disinfection byproducts (DBPs) like trihalomethenes (THMs) is better for human health than the approaches used at conventional drinking water treatment facilities.
© 2011 Karaelmas Fen ve Mühendislik Dergisi