TRANSPORT AND FATE OF CRYPTOSPORIDIUM PARVUM OOCYSTS IN INTERMITTENT SAND FILTERS

摘要

The transport potential of Cryptosporidium parvum (C. parvum) through intermittent, unsaturated, sand filters used for water and wastewater treatment was investigated using a duplicated, 2~3 factorial design experiment performed in bench-scale, sand columns. Sixteen columns (dia=15 cm, L=60 cm) were dosed eight times daily for up to 61 days with 65, 000 C. parvum oocysts per liter at 15 deg. C The effects of water quality, media grain size, and hydraulic loading rates were examined.