Removing <i>Giardia</i> Cysts From Low Turbidity Waters by Rapid Rate Filtration: Fid-Bau Portal

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Removing Giardia Cysts From Low Turbidity Waters by Rapid Rate Filtration

Al‐Ani, Mohammed Y. / Hendricks, David W. / Logsdon, Gary S. / Hibler, Charles P.

Pilot‐plant studies showed that when effective chemical pretreatment is employed in combination with rapid rate filtration, removals of turbidity, total coliform bacteria, and Giardia cysts from low turbidity waters may be greater than 80, 99.9, and 99.9 percent, respectively. Proper coagulation, however, requires the careful selection of chemicals and dosages. It was also observed that for waters having turbidity levels <1 ntu, percent reduction of turbidity can serve as a surrogate indicator of the removal of Giardia cysts.

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Removing Giardia Cysts From Low Turbidity Waters by Rapid Rate Filtration

Al‐Ani, Mohammed Y. / Hendricks, David W. / Logsdon, Gary S. / Hibler, Charles P.

Pilot‐plant studies showed that when effective chemical pretreatment is employed in combination with rapid rate filtration, removals of turbidity, total coliform bacteria, and Giardia cysts from low turbidity waters may be greater than 80, 99.9, and 99.9 percent, respectively. Proper coagulation, however, requires the careful selection of chemicals and dosages. It was also observed that for waters having turbidity levels <1 ntu, percent reduction of turbidity can serve as a surrogate indicator of the removal of Giardia cysts.

Removing Giardia Cysts From Low Turbidity Waters by Rapid Rate Filtration

Al‐Ani, Mohammed Y. / Hendricks, David W. / Logsdon, Gary S. / Hibler, Charles P.

Pilot‐plant studies showed that when effective chemical pretreatment is employed in combination with rapid rate filtration, removals of turbidity, total coliform bacteria, and Giardia cysts from low turbidity waters may be greater than 80, 99.9, and 99.9 percent, respectively. Proper coagulation, however, requires the careful selection of chemicals and dosages. It was also observed that for waters having turbidity levels <1 ntu, percent reduction of turbidity can serve as a surrogate indicator of the removal of Giardia cysts.

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Title:

Removing Giardia Cysts From Low Turbidity Waters by Rapid Rate Filtration

Contributors:

Al‐Ani, Mohammed Y. (author) / Hendricks, David W. (author) / Logsdon, Gary S. (author) / Hibler, Charles P. (author)

Published in:

Journal ‐ American Water Works Association ; 78 ; 66-73

Publication date:

1986-05-01

Size:

8 pages

ISSN:

1551-8833 , 0003-150X

DOI:

https://doi.org/10.1002/j.1551-8833.1986.tb05746.x

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

Giardia , Coagulation , Turbidity , Bacteria , Filtration , Rapid Sand Filters , Pretreatment , Polymers

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