Effect of Coagulation on Submerged Ultrafiltration Membrane

The possibility of minimizing the coagulation dosage in ultrafiltration (UF) drinking water treatment was assessed using a pilot-scale membrane operation in relation to membrane fouling. A 1,000 m3/d submerged UF system was used with a constant low dosage of coagulant. The results of investigating the normalized fouling rate during runtime indicated that membrane fouling was fairly controlled in the presence of a low concentration of PACl, even though a slight rise in the transmembrane pressure occurred.