Name one common disinfectant used in water treatment.

Name one common disinfectant used in water treatment.

• A. Ozone
• B. Chlorine
• C. Hydrogen peroxide
• D. Iodine

Answer: (B)

Chlorine is a widely used disinfectant in water treatment processes due to its effectiveness in killing bacteria, viruses, and other microorganisms that may contaminate drinking water. It has been a standard in water disinfection for many decades because it is relatively inexpensive and available, and it remains active in the water system, providing ongoing protection against microbial growth as the water is distributed. The use of chlorine can also be easily monitored and adjusted, making it a practical choice for maintaining water quality standards. While ozone, hydrogen peroxide, and iodine are also recognized disinfectants, they are generally used in more specialized applications or less common in standard municipal water treatment systems compared to chlorine, which has established protocols and extensive regulatory backing for its use.

Chlorine is a widely used disinfectant in water treatment processes due to its effectiveness in killing bacteria, viruses, and other microorganisms that may contaminate drinking water. It has been a standard in water disinfection for many decades because it is relatively inexpensive and available, and it remains active in the water system, providing ongoing protection against microbial growth as the water is distributed.

The use of chlorine can also be easily monitored and adjusted, making it a practical choice for maintaining water quality standards. While ozone, hydrogen peroxide, and iodine are also recognized disinfectants, they are generally used in more specialized applications or less common in standard municipal water treatment systems compared to chlorine, which has established protocols and extensive regulatory backing for its use.