What function do carbon tanks or GAC filters serve in water treatment?

Carbon tanks or Granular Activated Carbon (GAC) filters are primarily used in water treatment to remove contaminants, including total chlorine, from the water. The activated carbon has a large surface area that allows it to adsorb various chemicals and impurities effectively. When water passes through these carbon materials, chlorine and other organic compounds are adhered to the carbon particles, thus purifying the water.

This process is crucial because total chlorine can impart undesirable tastes and odors, and its removal is essential for improving water quality and ensuring it is safe for consumption. The effectiveness of GAC filters in dechlorinating water makes them an integral component of many water treatment systems, contributing to safer and cleaner water for drinking and other uses.