Riverbank filtration (RBF) refers to the natural
filtration of microbial matter through an aquifer
matrix of sand and gravel. Before this study, RBF had
gained only limited acceptance as a primary filtration
process for Cryptosporidium removal to comply with
the Interim Enhanced Surface Water Treatment Rule.
Recently, USEPA and the Central Wyoming Regional
Water System (CWRWS) in Casper, through a
process of negotiation and continued cooperation,
developed an evaluation study to demonstrate
removal of Cryptosporidium using RBF. The study
demonstrated that aquifers composed of sand and
gravel can remove Cryptosporidium-sized particles as
effectively as engineered filtration systems, including
slow sand filtration and conventional treatment. Includes 19 references, tables, figures.
| Edition : | Vol. 97 - No. 12 |
| Number of Pages : | 13 |
| Published : | 12/01/2005 |
