Project #352

Treatment Options for Giardia, Cryptosporidium, and Other Contaminants in Recycled Backwash Water

$697,860
Completed
Principal Investigator
David
Cornwell
Research Manager
Michaela N Hasan
Contractor
Cornwell Engineering Group
Microbes & Pathogens
Disinfection Byproducts (DBPs)
Constituents of Emerging Concern (CECs)
Monitoring

Abstract

Provides initial sampling of plants to determine the extent to which recycle is a problem. Provides guidance to utilities seeking design, operational, and modified recycling scenarios to reduce viable cysts and oocysts in recycled backwash water. Also considers the ramifications of recycling on compliance for disinfection by-products and other contaminants. Discusses the relative effectiveness of facility modifications or operational changes to remove viable cysts and oocysts and other contaminants from the backwash stream. Published in 2001.