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Author      Title/Abstract      

Anaerobic Digestion Options to Create Class A Biosolids Processes
Author: Perry L. Schafer, Joseph B. Farrell

Class A biosolids can be produced within high-temperature anaerobic digestion systems. Several process options and arrangements utilizing thermophilic digestion processes are identified and discussed along with the potential problems and regulatory issues. Alternative EPA strategies for Class A designations are evaluated.