Which substance is identified as a strong oxidizing agent in wastewater treatment?

In wastewater treatment, a strong oxidizing agent is essential for effective disinfection and the breakdown of organic materials. Sodium hypochlorite is widely recognized as a strong oxidizing agent due to its ability to release chlorine when dissolved in water. This chlorine reacts with various substances in wastewater, helping to break down organic matter, eliminate pathogens, and reduce the overall biochemical oxygen demand (BOD).

Sodium hypochlorite, commonly used in chlorination processes, ensures that harmful microorganisms are effectively neutralized, contributing to the safety and cleanliness of treated water. Its strong oxidizing properties make it crucial in achieving desired disinfection levels that meet regulatory standards for effluent water quality.

Other substances provided in the choices do not have the same level of oxidizing capability in the context of wastewater treatment, making sodium hypochlorite the most suitable choice for this role.