AWWA ACE68869

This powerpoint presentation begins by presenting a brief overview of hollow fiber ultrafilters, including the mechanics of the hollow fiber ultrafilter. Pictures are provided of the following topics: large volume sample in carboy; gravity flow into 1L bottle; pump driven flow; pressure dampened and pressure measured; sample pumped through the Ultrafilter; permeate flow exit; and, return of concentrate to 1L bottle. Advantages of hollow fiber ultrafiltration are given, along with reagents and solutions used for ultrafiltration, validation experiments - indicator organisms - STAG Grant; hollow fiber ultrafiltration process; Post-Ultrafiltration Detection Assays; validation study results; Cryptosporidium and Giardia Validation Experiments - STAG Grant; Analysis of Retentate Post- Filtration/Concentration; method comparison data; Bacillus subtilis Spore Recovery Experiment; Development of Norovirus Assay Using Hollow Fiber Ultrafiltration; and, results of initial analysis of MNV using ultrafiltration + qPCR. Includes tables.