Which process involves the inactivation of pathogenic organisms in water using chemical oxidants?

The process that involves the inactivation of pathogenic organisms in water using chemical oxidants is disinfection. Disinfection is a crucial step in water treatment that aims to kill or inactivate harmful microorganisms that can cause disease. Chemical oxidants commonly used for disinfection include chlorine, ozone, and peracetic acid, all of which effectively target and eliminate bacteria, viruses, and other pathogens present in the water.

Disinfection not only improves the safety of drinking water but also helps maintain public health standards by preventing the spread of waterborne diseases. The use of chemical oxidants in disinfection is essential, especially in situations where ultraviolet light or other physical methods may not be feasible or sufficient.

In contrast, filtration is primarily aimed at removing particles and sediment from water, while flocculation and coagulation are processes involved in the aggregation of particles to improve the efficiency of sedimentation processes and are not specifically aimed at inactivating pathogens. These processes serve different purposes in water treatment and are important for overall water quality, but they do not involve the direct inactivation of pathogens through the use of chemical oxidants.