This paper describes the use of an integrated membrane system consisting Ultrafiltration (UF) and Reverse Osmosis (RO) filters treating raw river water that has been optimized by improving the operating sequence and cleaning conditions. The combined membrane process treats challenging surface water from Llobregat River (Barcelona, Spain) with occa...

Paper presents results of 3 pilot studies demonstrating ultrafiltration (UF) as a feasible technology alternative to conventional coagulation/filtration for treating surface water for potable use. All three case studies involve existing plants in S?o Paulo State Brazil. Case 1: Alto Cotia water from Gra?a Reservoir - color, haloacetic aci and TOC t...