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EMERGING INFECTIOUS DISEASE AGENTS AND ISSUES ASSOCIATED WITH THE MANAGEMENT OF TREATED SLUDGES (BIOSOLIDS)
Citation:
Smith* Jr., J E. EMERGING INFECTIOUS DISEASE AGENTS AND ISSUES ASSOCIATED WITH THE MANAGEMENT OF TREATED SLUDGES (BIOSOLIDS). Presented at ORD/Regional Training Workshop on Emerging Issues Associated with Aquatic Environmental Pathogens, Ft. Meade, MD, September 05 - 07, 2001.
Impact/Purpose:
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Description:
This presentation looks at the pathogenic microorganisms present in municipal sludges and the public's concerns with the land application of sludges/biosolids. Methods for reducing pathogens in sludge; methods for reducing the vector attractiveness of sludge; and issues associated with implementing these practices since promulgation of the 40CFR503 Regulation in 1992 are explored. With almost nine years of experience, it is possible to suggest ways to fine tune the regulation and further reduce risks to public health. Disinfection processes presently being researched are noted together with EPA's methodology for determining equivalency of pathogen reduction processes. Issues and concerns with frequently employed methods for achieving vector attraction reduction are considered and some software to facilitate data collection and calculations is identified. Plans are underway to standardize and validate the analytical methods for fecal coliforms, Salmonella sp., enteric viruses, and helminth ova.