Ultrafiltration in potable water production
A low-pressure membrane technology for the one-step clarification and disinfection of water for potable use is described. The membranes are operated at net driving pressures of between 30 and 40kPa. The filtered product of low turbidity was produced continuously and there was no correlation between the turbidity of the feed and that of the product. The membrane process appears to be an effective means for filtering out coliforms, to render a good quality potable water upstream of final breakpoint chlorination.