Total Costs

About $20 per ton of dry solids OPERATING COSTS

$10 or more per ton of dry solids FILTER SIZES AVAILABLE

Up to 550 ft2 (a,d); up to 3500 ft2 (d) NUMBER OF DRIVE MECHANISMS

2(c,d); 6(a,b) SLUDGE CONCENTRATIONS

Primary sludge: 6 to 11% solids; excess activated sludge: 2000 to 4000 mg/l VSS; anaerobic digester effluent: 4.5 to 7% VSS

FILTER CAKE SOLIDS CONTENT 20 to 30%

VACUUM FILTER FILTRATION RATES (LB/HR/FT2)

On primary sludge, 5 to 7; on excess activated sludge after heat or chemical treatment, 1 to 4; on lime precipitated chemical sludge, 2 to 6; on aerobically digested sludge, 1 to 2

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