Filtration as a Barrier to Passage of Cysts in Drinking Water

  • Gary S. Logsdon
  • Foppe B. Dewalle
  • David W. Hendricks


Numerous outbreaks of waterborne giardiasis have occurred in the United States since 1973. Generally, the causes have been inadequate disinfection or inadequate filtration (perhaps none), or sometimes both. Even though research on water filtration for Giardia cyst removal is expected to continue in the future, sufficient information on water filtration for cyst removal is available now to provide some guidance for engineers who design filtration plants and for operators who run them.


Filter Cake Nephelometric Turbidity Unit Turbidity Removal Coagulant Dose Giardia Cyst 
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Copyright information

© Springer Science+Business Media New York 1984

Authors and Affiliations

  • Gary S. Logsdon
    • 1
  • Foppe B. Dewalle
    • 2
  • David W. Hendricks
    • 3
  1. 1.Drinking Water Research DivisionUnited States Environmental Protection AgencyCincinnatiUSA
  2. 2.Department of Environmental HealthUniversity of WashingtonSeattleUSA
  3. 3.Department of Civil EngineeringColorado State UniversityFort CollinsUSA

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