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TABLE 7.3.2-1 <br />Solids Processes Design Criteria - Existing and 2025 Capacity Needs <br />MWMC Facilrties Plan, Eugene-Springfield <br /> <br /> Unit Process Existing Criteria/Conditions Year 2025 <br />Waste Activated Sludge 75 pement volatile 75 pement volatile <br />Annual Average 0.10 lbs/cf/day <br />Maximum Monthly Average 0.13 lbs/cf/day <br />Maximum VS loading criteda at Max Month 0.15 lbs/cf/day 0.15 lbs/cf/day <br />Average VS Destruction 45% 55% <br />Average Pement DS from Digestion 2.3% 2.5% <br />Anaerobic Digester Auxiliary Equipment <br />Waste Gas Incinerator <br />Number of Umts 1 <br />Engine Generator <br />Number of Units 2 <br />Peak Output Capacity 420/KVV & 800 kW <br />RPM <br />Fuel System, primary Digester gas <br />Fuel System, secondary Digester gas <br />Hot Water Boiler <br />Number of Umts 1 <br />Output Capacity ~ <br />Fuel System, primary Digester gas <br />Fuel System, secondary Natural gas <br />Sludge Heat Exchanger <br />Number of Un,ts 3 <br />Type External spiral <br />Digested Sludge Transfer Pumps <br />Number of Umts 1 <br />Digested Sludge Pumps <br />Number of Umts 2 2 <br />Capacity, each/tota~ 430 gpm / 860 gpm 430 gpm / 860 gpm <br />Type Progressing Cavity Progres.sing Cavity <br />Drive AFD AFD <br />Horsepower, each 75 75 <br />Facultatlve Sludge Lagoons <br />Number of Units 4 4 <br />Area, each/total 6.25 acres / 25 acres 6.25 acres / 25 acres <br />Depth, normal 13.5 ft 13.5 ft <br />Depth, maximum 14.5 ft 14.5 fi <br />Freeboard, norma~ 2.0 ft 2.0 ft <br />Freeboard, maximum 3.0 ft 3.0 ft <br />VS Loading Criteria 25 lbs/1000 cf-day 25 Ibs/t 000 cf*day <br />Annual Average VS Loading 16 lbs/1000 cf-day TBD <br />Facultafive Sludge Lagoon Auxiliary Equipment <br />Sludge Dredge Pump <br /> <br /> MWNIC..TABLE 7.3,2-I_REV4 DOC 3 <br /> <br /> <br />