Used in water treatment to remove negatively charged ions such as chloride, sulfate, and nitrate from drinking water and industrial wastewater. Effective in deionization processes where it helps produce high-purity water for laboratories and pharmaceutical applications. Applied in the food and beverage industry for sugar syrup purification and decolorization. Utilized in chemical processing to recover valuable anions or to separate and concentrate specific compounds. Also found in swimming pool filtration systems to maintain water quality by reducing contaminants. Regenerable with alkaline solutions, allowing repeated use in continuous systems.