Chelating agents belong to a type of water treatment agent. Chelating agents are a type of chemical widely used in the field of water treatment, used to treat metal ions in water. They have efficient complexation and can form stable complexes with metal ions, thereby changing the characteristics and behavior of metal ions.
The main functions of chelating agents in water treatment include:
Removal of metal ions: Chelating agents can react with metal ions in water to form soluble or inactive complexes, thereby removing or deactivating metal ions from the water.
Stabilization of metal ions: Chelating agents can stabilize certain metal ions that are prone to precipitation or oxidation, prevent their precipitation or oxidation reactions, and maintain the stable state of metal ions.
Reducing the impact of metal ions on the environment and equipment: Chelating agents can reduce the toxicity and corrosiveness of metal ions in water, reduce their impact on the environment and equipment, and protect the integrity and functionality of water systems and equipment.
Scale control: Some chelating agents have anti scale effects, which can reduce sediment and scale accumulation in water and maintain the cleanliness of equipment and pipelines.
Chelating agents are widely used in various water treatment systems, such as boiler water treatment, cooling water treatment, circulating water treatment, and industrial wastewater treatment. The specific selection of chelating agents and their usage methods need to be determined based on factors such as water quality characteristics, types and concentrations of metal ions, and system requirements.