In January 2006, the U.S. Environmental Protection Agency started enforcing the new arsenic limit of 10 parts per billion (ppb) in drinking water. The previous limit was 50 ppb. Since that date, there has been a flurry of activity in bringing selective arsenic media to the market.
Effective arsenic removal applications for water treatment
All raw water supplies contain dissolved ions that are positively or negatively charged. The positively charged ions (called cations) include calcium and magnesium, which constitute hardness. Other cations present in water are sodium, potassium and iron. The negatively charged ions in water (called anions) include sulfates, chlorides, bicarbonates and silica.
Ion exchange for removal of groundwater contaminants
Acid cation resin in sodium form can be used to remove radium from water
Ion exchange resins offer effective contaminant removal, an economical choice and good DBP control
What you need to know to develop an effective ion exchange system for industrial wastewater treatment