Record Display for the EPA National Library Catalog
RECORD NUMBER: 113 OF 158
|OLS Field Name||OLS Field Data|
|Main Title||Recent Developments in Thermophilic Sludge Digestion in the United States.|
|Author||Eralp, A. E. ; Farrell, J. B. ;|
|CORP Author||Environmental Protection Agency, Cincinnati, OH. Water Engineering Research Lab.|
|Additional Subjects||Activated sludge process ; Thermophiles ; Sludge digestion ; United States ; Stabilization ; Temperature ; Performance evaluation ; Design ; Aeration ; Clarification ; Aerobic processes ; Anaerobic processes ; Flow charts ; Case studies|
Anaerobic digestion is one of the most widely used processes for sludge stabilization. The paper reviews the developments of thermophilic sludge digestion including the successful demonstrations at Los Angeles and Chicago. Two recent developments, Multiple Digestion Process as advanced by Torpey in New York and dual digestion system as demonstrated in Hagerstown, Maryland and in Lackawanna, New York are reviewed in detail. It is concluded that the thermophilic digestion process, aerobic, anaerobic or in combination with mesophilic digestion process has been shown to be equivalent or better compared with conventional sludge stabilization processes when operated under research conditions.