The invention is directed to a microbiological interception enhanced filter medium, preferably having an adsorbent prefilter located upstream from the filter medium. Preferably, the prefilter is adapted to remove natural organic matter in an influent prior to the influent contacting the microbiological...http://www.google.es/patents/US6959820?utm_source=gb-gplus-sharePatente US6959820 - Microporous filter media, filtration systems containing same, and methods of making and using
Microporous filter media, filtration systems containing same, and methods of ...