2023 Online Catalog - Flipbook - Page 499
National Secondary Drinking Water Regulations 17
Contaminant
SMCL,MG/l+
Iron
0.3 (total iron)
Ferrous Iron (Fe )
+2
Ferric Iron (Fe+3)
0.3 (total iron)
Treatment Methods
Filtration (oxidizing filters)
Electrodialysis
Pressure Aeration/Filtration
Oxidation/Precipitation/Filtration
Distillation
Cation Exchange
Reverse Osmosis*
Filtration
Greensand
Calcite (also raise pH to 7.2)
Sand
Cartridges
Sequestered iron
Iron Bacteria
Strong oxidation and/or fine (10 micron or