Bicarbonate alkalinity can be converted to carbon dioxide (gas dissolved in water) by exchanging cations present in the water for hydrogen ion. A variety of hydrogen cation resins can be used for the exchange. The conversion is typically followed by degasification to removed the carbon dioxide formed.
Bicarbonate alkalinity can be removed by various strong base anion resins in the hydroxide form (such as SBG1P-OH and SDBG2-OH), when coupled with hydrogen form cation resins (such as CG8-H or CG10-H). Bicarbonate can also be removed by deionizing mixed bed resins such as MBD-15 and MBD-10.
Bicarbonate alkalinity can be removed by a variety of strong base an ion resin and ionic forms including SBG2 and SBG1 in the chloride or in the hydroxide form.