Full Description

Metcalf to an existing up-flow sludge blanket clarification and GAC filtration process. The effect of high and low dose pre-ozonation and pre and intermediate ozonation on particle removal was evaluated. A pilot study was conducted evaluating the performance of dissolved air flotation (DAF) and dual media filtration for treating two different raw water qualities, and comparing alum, sodium aluminate and polyaluminum chloride coagulants. Performance was compared under different clarifier and filter surface loading rates. These studies illustrate the effectiveness of using on-line particle counting in real time, to optimize and document the performance of clarification and filtration unit processes taken separately or together as an overall process. Various ways of managing, analyzing, and interpreting particle count and log removal data are discussed. Conclusions are drawn about the performance of the various unit processes and the application and effectiveness of on-line particle counting for process optimization with respect to removal of Giardia- and Cryptosporidium- sized particles. Recommendations for further study are also discussed.

Product Details

Published: 01/01/1995 ISBN(s): 089867834X Number of Pages: 42File Size: 1 file , 2.5 MB