The biological process with the greatest potential for stabilization of the organic wastes produced by man's activities is the anaerobic stabilization process. While this process is pres ently used for waste stabilization, it is one of the least understood processes in the wastewater treatment field. As a result, the area for application of the anaerobic system is limited. As more information becomes available to aid in understanding this process, the area of application will broaden con siderably. The present lack of under standing of the process is causing a shift to chemical and physical proc esses for treatment of organic sludges. The use of anaerobic processes for stabilizing wastes from many sources has been proposed. Not only are these systems being used for disposal of the solids separated from wastewaters, but additional uses are being investigated. This process has been used successfully for stabilization and volume reduction of garbage from municipalities (1). Research has been conducted on the disposal of all combustible solid wastes from a community via anaerobic diges tion (2). Industrial applications have been successful in treating the entire waste flow by the anaerobic contact process (3). As the basic fundamen