Separation of Barium from Water
Barium is the fourteenth most common element in the Earth's crust and is generally found there as sulfate or carbonate complexes. Barium has very little commercial importance outside of its common role as a filler in paints and rubber formulations.
Barium can be removed from groundwater using resins such as AmberLite™ HPR1100 Na Strong Acid Cation Exchange Resin or AmberLite™ IRC83 H Weak Acid Cation Exchange Resin. Regeneration often requires HCl or very high doses of NaCl, both of which must be disposed in accordance with all local, state (provincial) and federal regulations.
Filtration can also be used to remove barium from water. Sulfuric acid is used to precipitate BaSO4. The precipitate can be coagulated and filtered out of the water. DuPont™ Ultrafiltration SFD Modules can facilitate low levels of barium-containing particles in the final drinking water.
These ion exchange and ultrafiltration products may be subject to drinking water application restrictions in some countries. Please check the application status before use and sale. For more information see our regulatory information. (Even when ultrafiltration modules are certified, their use is not recommended for drinking water where dedicated operators are not available.)