WEDC Guide No. 33: Membrane filtration

<p dir="ltr">Faecal matter is an indicator of many diseases that are transmitted by the faecal-oral route, so if faecal organisms are found in water we can assume that disease-causing organisms, commonly called ‘pathogens’, are also present. Membrane filtration is a means of testing the quality of water for faecal contamination and therefore a way of determining whether a water supply is safe, or whether the water needs treating before consumption. This guide presents an overview of the process.</p><p dir="ltr">© WEDC, Loughborough University, 2017</p><p dir="ltr">Authors: Brian Reed, Michael Smith and Rod Shaw</p><p dir="ltr">Photography: Ken Chatterton</p><p dir="ltr">Illustrations: Rod Shaw</p><p dir="ltr">Designed and produced by WEDC Publications</p>