You are here:
THE US POSITION AND FATE OF PATHOGENS IN SEWAGE SLUDGE AND THE US 40CFR503 REGULATION
Citation:
Smith* Jr., J E. AND R. B. Brobst*. THE US POSITION AND FATE OF PATHOGENS IN SEWAGE SLUDGE AND THE US 40CFR503 REGULATION. European Biosolids and Organic Residuals Conference, Wakefield, England, 11/11-14/2001.
Description:
This paper reviews the pathogenic microorganisms that may be found in sewage sludge and the commonly employed Class A and B treatment processes for controlling pathogens. It notes how extensively they are used and discusses issues and concerns with them. Preliminary findings of a June 2001 International Workshop on Emerging Infectious Disease Agents and Issues Associated with Animal Manures, Biosolids and Other Similar By-Products are given. The paper looks at the reasons for wanting to use a Class A process including the public's concerns and perceptions. Disinfection processes presently being researched are also noted together with EPA's methodology for determining equivalency. Lastly 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.