1. Table 4. Removal of Giardia and Cryptosporidium in Slow Sand Filters
Author
Giardia
Cryptosporidium
Comments.
Bellamy et al. (1985a)
>98% -
Schuler et al. (1988)
99.8 to 100%
100%
Schuler et al. (1991)
3.9 to 7.11og
Fogel et al. (1993)
Average of 93%
Logsdon et al. (1993)
93.7 to 99.9%
USEPA (2001)
99.9 to 99.9%
Timms et al. (1995)
99.9%
Influent spike of 4,000oocyst/L,Filtration rate of 0.3 to 0.4 m/h
Loganetal.(2001)
>3 to 41og
Influentspikeof65,000oocyst/L, Less removal with larger media
Ephrem Guchi et al. Review on Slow Sand Filtration in Removing Microbial Contamination and Particles from Drinking
Water. American Journal of Food and Nutrition, 2015, Vol. 3, No. 2, doi: /ajfn-3-2-3
© The Author(s) Published by Science and Education Publishing.