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CONTROL OF PATHOGENS AND VECTOR ATTRACTION IN SEWAGE SLUDGE (1999 EDITION) (EPA/625/R-92/013)
Citation:
CONTROL OF PATHOGENS AND VECTOR ATTRACTION IN SEWAGE SLUDGE (1999 EDITION) (EPA/625/R-92/013). U.S. Environmental Protection Agency, Washington, D.C., 1999.
Description:
Properly treated sewage sludge (biosolids) is used as a soil conditioner and partial fertilizer in the United States and many other countries. While sludge has beneficial plant nutrients and soil-conditioning properties, if it is not treated. It may also contain bacteria, viruses, protozoa, parasites, and other microorganisms that are harmful to humans. Sewage sludge that is to be applied to land or placed in/on a surface disposal site must meet federal and state requirements for the control of pathogenic microorganisms and vectors.
This revision was based on needs, comments and
suggestions from the regulatory and sewage sludge
management community. It includes clarification of many of the sampling and monitoring issues and reflects the increased understanding of analytical issues. There are additional operational guidelines and examples of how a variety of facilities have complied with the Part 503
requirements. Some of the notable additions to this edition include:
- Clarification of Class A processes
- More specific guidelines for the operation of composting facilities
- More information on site restrictions including permit conditions which may apply to specific crops
- More information on public health and emerging pathogens
- More information on sampling and monitoring
protocols
- Improved Sample Preparation Procedures for
Fecal Coliform tests and Salmonella sp.
- Analysis More detail on the Method for Recovery and Assay of Enteroviruses from Sewage Sludge
- More detail on the Analytical Method for Viable Helminth Ova
- Update on Pathogen Equivalency Committee
Procedures and a listing of recommended
processes.