Sludge Recycling Facility, North Shore Sanitary District, Zion, Ill., U.S.A.

N y oZvb Tctg Sludge Recycling Facility North Shore Sanitary District Zion, Ill., U.S.A. orth Shore Sanitary District (NSSD) selected Minergy’s GLASSPACK® system as the technologf choice for sustainable biosolids management at its new Sludge Recycling Facility located in ion, Ill., U.S.A. NSSD’s Sludge Recycling Facility incorporates Minergy’s GLASSPACK® itrification technology to harness and use the energy contained in biosolids to create an inert, eneficially reusable glass aggregate product. he Sludge Recycling Facility integrates both the GLASSPACK® closed-loop oxygen enhanced ombustion process and thermal energy recovery into processing biosolids from the district’s hree wastewater treatment plants. Heat energy, required by a fluidized bed dryer to produce dry ranulate, is recovered from the GLASSPACK® flue gas using a thermal oil heat transfer system. From “Water Matters,” the Newsletter of the North Shore Sanitary District (Summer 2005) “…The many economic advantages are bolstered by the environmental benefits of the facility. The cutting-edge biosolids technology will take the 52,600 tons of solids the District disposes of each year and, through a drying and melting process, turns it into a marketable product. The new facility removes the need to landfill solids produced through the wastewater treatment process, thereby removing the risk of leaking landfill polluting our soil and water supply. There will also be no new landfills to occupy precious open land. Preserving open land has been at the forefront of North Shore community issues and the District shares the community’s desire to maintain and protect this valuable resource.” NSSD GLASSPACK® Closed-Loop System Configuration PLANT SPECIFICATIONS Commercial Operation: 2006 Feed Material: Municipal biosolids from the district’s three plants Capacity: 200 wet tons/day (as received) Biosolids feed: 17 to 20% solids Storage: 800 wet tons and 150 dry tons Drying Process Technology: Fluid bed Evaporative capacity: 6.4 tons water/hour Granulate production: 35 dry tons/day Granulate solids content: >90% Vitrification Technology GLASSPACK® GP-35 Configuration: Closed-loop oxygen enhanced system Operating temperature: 2200–2600o F Heat input: 26 mm Btu/hr Oxygen Supply On-site vacuum pressure swing absorption (VPSA) production Purity: >90% Capacity: 66.6 tons/day Thermal Energy Recovery Thermal oil heat transfer Output: 16.5 mm Btu/hr Temperature: 482o F GLASSPACK® Emission Control Bag filter Wet scrubber/condenser Granular activated carbon (GAC) Output 7.5 tons/day glass aggregate