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Nominal Rejection Characteristics of:

TFC Elements

or

CTA Elements

 

Or CLICK HERE to view a comparison of membrane processes.

Nominal Rejection Characteristics of Thin Film Composite Reverse Osmosis Membranes

Ion

% Rejection*

Calcium

93-99

Sodium 92-98
Magnesium 93-98
Potassium 92-96
Manganese 96-98
Iron 96-98
Aluminum 96-98
Copper 96-99
Nickel 96-99
Cadmium 93-97
Silver 93-96
Zinc 96-98
Mercury 94-97
Hardness Ca&Mg 93-97
Radioactivity 93-97
Chloride 92-98
Ammonium 80-90
Ion % Rejection*
Bromide 90-95
Phosphate 95-98
Cyanide 90-97
Sulfate 96-99
Thiosulfate 96-98
Silicate 92-95
Silica 90-98
Nitrate 90-95
Boron 50-70
Borate 30-50
Fluoride 92-95
Polyphosphate 96-98
Orthophosphate 96-98
Chromate 85-95
Bacteria 99+
Lead 95-98
Arsenic 50-90

Nominal Rejection Characteristics of Cellulose Triacetate Reverse Osmosis Membranes

Ion % Rejection*
Sodium 90-95
Calcium 92-95
Magnesium 94-97
Potassium 85-95
Iron 92-96
Manganese 92-96
Aluminum 95-98
Ammonium 85-90
Copper 96-98
Nickel 96-98
Zinc 96-98
Strontium 95-97
Cadmium 95-97
Silver 90-95
Mercury 94-96
Barium 94-96
Chromium 94-96
Ion % Rejection*
Lead 94-96
Chloride 90-95
Bicarbonate 85-95
Nitrate 50-70
Fluoride 85-90
Silicate 80-90
Phosphate 95-97
Chromate 80-90
Cyanide 80-90
Sulfite 94-96
Thiosulfate 94-97
Ferrocyanide 96-98
Bromide 85-90
Borate 25-50
Sulfate 96-98
Arsenic 90-95
Selenium 90-95

 
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Applied Membranes, Inc. 2007