Role in the water treatment system: eliminating the hardness of water; adjusting the pH value of water; neutralization of wastewater; regeneration of ion exchange resins; elimination of heavy metal ions in water through precipitation.
Sodium hydroxide is widely used in water treatment. In wastewater treatment plants, sodium hydroxide can reduce the hardness of water through neutralization reaction. In the industrial field, it is the regeneration agent for ion exchange resin regeneration. Sodium hydroxide is strongly alkaline and has relatively high solubility in water. Since caustic soda is in liquid form, it is easy to measure the dosage and is conveniently used in various fields of water treatment.