Water Treatment 101: A Filtration Primer

Editor's Note: This article is part of our "Water Treatment 101" series, which covers basic treatment processes. To read other articles in this series, see "6 Tips for Improving Coagulation, Flocculation and Clarification" and "A Disinfection Primer."Filtration.You pass water through a media bed of sand or gravel. The particles are removed and clean water flows out the bottom.Simple, no?Not exactly.“If it were that easy, anybody could do it,” says Brock McEwen, water technology director for CH2M HILL.Filter operators need to comprehend the basic design principles of their systems, pay close attention to pretreatment, understand filter ripening and be smart about