Which of the following is NOT commonly used for disinfecting water?

Which of the following is NOT commonly used for disinfecting water?

• A. Chlorine compounds
• B. Ozone
• C. Iron
• D. Chlorine-ammonia compounds

Answer: (C)

The correct choice indicates that iron is not commonly used for disinfecting water. Disinfection is a critical step in water treatment aimed at eliminating harmful microorganisms to ensure water safety for consumption. Chlorine compounds, including chlorine gas or sodium hypochlorite, are widely employed for this purpose because they are effective at killing bacteria and viruses. Ozone, a strong oxidant, is also utilized in water treatment as a disinfectant because of its ability to inactivate pathogens without leaving chemical residues in the water. Chlorine-ammonia compounds, or chloramines, are another category of disinfectants that provide prolonged disinfection effects, reducing the formation of harmful byproducts compared to traditional chlorine. Iron, on the other hand, is not recognized as a disinfectant. It can be involved in water treatment processes, primarily for removing contaminants and improving water quality through filtration, but it does not serve the purpose of disinfection by killing or inactivating pathogens. Therefore, when evaluating the options, iron clearly stands out as unsuitable for disinfection processes in water treatment.

The correct choice indicates that iron is not commonly used for disinfecting water. Disinfection is a critical step in water treatment aimed at eliminating harmful microorganisms to ensure water safety for consumption.

Chlorine compounds, including chlorine gas or sodium hypochlorite, are widely employed for this purpose because they are effective at killing bacteria and viruses. Ozone, a strong oxidant, is also utilized in water treatment as a disinfectant because of its ability to inactivate pathogens without leaving chemical residues in the water. Chlorine-ammonia compounds, or chloramines, are another category of disinfectants that provide prolonged disinfection effects, reducing the formation of harmful byproducts compared to traditional chlorine.

Iron, on the other hand, is not recognized as a disinfectant. It can be involved in water treatment processes, primarily for removing contaminants and improving water quality through filtration, but it does not serve the purpose of disinfection by killing or inactivating pathogens. Therefore, when evaluating the options, iron clearly stands out as unsuitable for disinfection processes in water treatment.