What is the primary purpose of Chlorine Dioxide in water treatment?

The primary purpose of Chlorine Dioxide in water treatment is to disinfect water. Chlorine Dioxide is a strong oxidizing agent that is effective in killing a wide range of pathogens, including bacteria, viruses, and some protozoa. This makes it a valuable tool in the water treatment process, especially where microbial contamination is a concern. Unlike traditional chlorine, Chlorine Dioxide does not form harmful by-products when it reacts with organic matter, making it a preferred disinfectant in certain situations.

In contrast, the other options do not align with the primary function of Chlorine Dioxide. While increasing the pH of water, adding color, or decreasing turbidity are important water treatment processes, they are typically addressed by different chemicals and methods more suited to those specific purposes. Thus, recognizing the distinct disinfecting power of Chlorine Dioxide is crucial for effective water treatment practices.