Treatment of drinking water was once considered adequate for reducing the risk of infection from pathogenic organisms. However, the increased need for wastewater reuse has focused attention on the potential of wastewater treatment processes for reducing the numbers of pathogenic organisms to acceptable levels. The project accrued information to better understand the occurrence of Cryptosporidium in reuse effluents from plants employing various upstream treatment processes (secondary clarification, cloth filtration, sand filtration, and MBRs). This information would be pertinent to development of future risk assessment models for human cryptosporidiosis that could arise from exposure to reuse effluents.
Originally funded as WERF project Reuse-06-03.