* % Solids by Weight

	PT&M SCREW PRESS	BELT PRESS	RAM COMPACTOR
Primary Sludge: 10%
Ash	48 – 52%	28 – 35%	N/A
35% Ash	52 – 57%	32 – 37%	N/A
Mixed Sludge (Low Ash): 10%
Secondary	45 – 55%	25 – 30%	N/A
25% Secondary	41 – 48%	20 – 27%	N/A
Knots & Shives	47 – 52%	N/A	30 – 37%
Fine Rejects	48 – 53%	28 – 35%	35 – 45%
Coarse Rejects: 60% Plastic	51 – 70%	N/A	35 – 52%

About this Dewatering Equipment Comparison:

The above numbers are approximate; material will need to be tested before dryness can be guaranteed.