Colonization of Biologically Active Filter Media With Pathogens

Booknews

The use of biological filtration to provide finished drinking water with low organic carbon content is becoming more common, but there is concern that the filters themselves might harbor pathogens that end up in the drinking water. The objectives of this study were to determine the survival of four bacterial pathogens seeded into filter media in laboratory columns and pilot filter systems; determine the persistence of protozoan pathogens seeded into pilot biological filters; survey filter media and released filter fines from pilot and full-scale treatment facilities for the presence of pathogens; and detect pathogens by conventional culturing techniques and novel molecular techniques, including PCR and fluorescent antibody techniques. Annotation c. Book News, Inc., Portland, OR (booknews.com)