HOME NEWS/EVENTS PROCESS MACHINING ABOUT CUSTOM SYSTEM DESIGNS CONTACT. PRODUCTS SERVICES ELECTRO OSMOSIS DEHYDRATORS ROTARY DRUM THICKENERS Our ROEFILT Sieve Drum Concentrator (SDC) reduces the volume of thin sludge and slurry produced during municipal or industrial wastewater treatment. The principle of the SDC is very simple: Sludge is flocculated with polymers and the released water is drained by gravity through a filter drum. The sieve Drum concentrator is an efficient alternative to the Gravity Belt Thickener if your circumstances involve limited space or less demanding performance requirements. Efficient and effective performance The Sieve drum concentrator process significantly decreases sludge volume and creates a clear filtrate with low energy, polymer and wash water consumption. Benefits Advantages Features Sizes Charts Pictures Benefits of SDCs Reduction of sludge volume by up to 90% Reduced load on downstream processes Improved performance and/or reduced size of downstream units Reduced hauling costs Requires less space and has a lower cost than a GBT ADVANTAGES Advantages of SDCs Clear Filtrate Low energy and polymer consumption Low or no wash water consumption No noise, no vibration High performance at low cost Minimal to no operator attention required FEATURES Special Features of our SDC Drum housing eliminates odor emission Large machines with dual drum and split feed All our SDC units are direct drive, eliminating costly belt or chain drive. SIZES Sizes SDC45 SDC90 SDC125 SDC180 SDC 300 CHARTS Type of Sludge Feed % Cake % Polymer Consumption LBS/DRY TON SDC 45 Throughput SDC 90 Throughput SDC 180 Throughput GPM LBS/DS/H GPM LDS/DS/H GPM LDS/DS/H Aerobically Digested 0.5-2.5 5-6 10-14 60-40 150-500 100-70 250-875 190-140 475-1750 Anaerobically Digested 2.0-5.0 5-7 6-10 50-35 500-875 80-60 800-1500 140-100 1400-2500 50%Primary 50% Secondary 1.5-5.0 7-9 6-10 50-40 375-1000 80-70 600-1750 140-110 1050-2750 Primary 2.5-7.5 8-12 2-8 60-50 750-1850 100-80 1250-3000 180-140 2250-5250 WAS 0.5-1.5 4-6 8-12 70-60 175-450 120-90 300-675 200-170 500-1275 Alum Sludge 1.5-2.0 4.5-6.5 8-16 80-60 600-600 110-85 825-850 140-110 1050-1100 PICTURES See also our alternative machine for sludge thickening: the Gravity Belt Thickeners. Copyright ©2009 Charter Machine Company, 55 Wester Avenue, Metuchen, New Jersey 08840. (732) 548-4400 Charter Machine Company is a subsidiary of Graphic Equipment Corporation