Abstract: An alkaline stabilization process for treating partially dewatered sludge while reducing lime consumption, increasing nutrient values and applicability of the product, and enhancing physical handling characteristics such as dryness, granularity and spreadability including feeding a predetermined amount of partially dewatered sludge to a first mixer, adding a predetermined amount of alkaline material to the sludge in the first mixer, mixing the sludge and alkaline material together in the first mixer to form a mixture, discharging the mixture from the first mixer, directing the mixture to a second mixer, adding a predetermined amount of end product enhancing additive to the second mixer, mixing the mixture and end product enhancing additive in the second mixer to form an end product and discharging the end product from the second mixer.

Abstract: A process for the production of a durable granular or pelletized sludge product is disclosed whereby a minimal amount of high calcium oxide material is utilized for pathogenic stabilization, a portion of the resulting hot mixture being recycled back to the mixing stage to reduce the requisite lime consumption by utilizing unreacted lime, for energy recovery and to increase dryness.

Abstract: A stackable combination party tray for food, drink, utensils and napkins has a flat rectangular platform with two or more recessed food compartments, surrounded by an upturned peripheral retaining lip, one recessed compartment for holding a plurality of sizes of beverage containers, one recessed compartment for holding utensils and one recessed compartment for holding a napkin. These three compartments are each of the same depth and have flat bottom surfaces to provide three points of support for permitting the tray to be supported on a support surface. The beverage container compartment extends a distance below the bottom surface of the rectangular platform a distance sufficient to allow a person's hand to grip the tray. Thus, one's tray and drink can be held in one hand.

Abstract: A process for the production of a durable granular or pelletized sludge product is disclosed whereby a minimal amount of high calcium oxide material is utilized for pathogenic stabilization, the resulting material being further processed through an agglomeration stage. A portion of the agglomerated material is further processed in a moisture reduction or drying stage and recycled back to the agglomeration stage for percent solids adjustment and promotion of agglomeration. An apparatus for performing the process is also disclosed.