You are here:
CLASS A PROCESS USAGE AND RELATED ISSUES: A PATHOGEN EQUIVALENCY COMMITTEE PERSPECTIVE
Citation:
Smith* Jr., J E. AND R. B. Brobst*. CLASS A PROCESS USAGE AND RELATED ISSUES: A PATHOGEN EQUIVALENCY COMMITTEE PERSPECTIVE. 6th Annual Central States Water Environment Association Education Seminar: Trends and Issues in Biosolids Stabilization, Madison, WI, 3/27/2001.
Description:
This paper looks at the factors influencing the land application of biosolids and usage of Class A processes. It reviews the commonly employed Class A processes for controlling pathogens; notes how extensively they are used; discusses issues and concerns with some of them; and it looks at the reasons for wanting to use a Class A process. Disinfection processes presently being researched are also noted together with EPA's methodology for determining equivalency. Limited attention is given to Class B Processes. 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.