AWWA WQTC62475

This presentation presents a framework for selecting optimum alum coagulationconditions for removing Cryptosporidium by conventional water treatment plants. The traditionalconventional plant of coagulation-flocculation-sedimentation-filtration is addressed as well asthe dissolved air flotation (DAF) plant. An integrated approach is used and thus the presentationdeals with the following: fundamental aluminum chemistry associated with alum coagulationincluding dissolved Al reactions, Al precipitation reactions, and the effect of water temperature;size, number concentration, and the electrical charge of oocysts; bench-scale studies; and,pilot plant studies demonstrating the performance of clarification and dual media filtration forremoving Cryptosporidium under optimum alum coagulation conditions. Includes 4 references, tables, figures.

Product Details

Edition:

Vol. - No.

Published:

11/01/2005

Number of Pages:

7

File Size:

1 file , 550 KB