Final answer:
The correct answer is sedimentation, filtration, and chlorination. These are key steps in the purification of water in a municipal water treatment system that ensure safe drinking water.
Step-by-step explanation:
The purification of water in a municipal water treatment system involves several processes to ensure the water is safe for drinking. Among the options given, the correct answer is D. Sedimentation, filtration, and chlorination. These processes are part of a typical drinking water treatment process.
Sedimentation
Sedimentation allows solids to settle to the bottom of a tank as the water flows through, effectively removing larger particulate matter.
Filtration
Filtration further removes small particles from the water by passing it through layers of sand, gravel, and sometimes charcoal or a similar substance, which can also help reduce turbidity, color, and odors.
Chlorination
Chlorination is a form of disinfection where chlorine is added to the water to kill bacteria and other pathogens, ensuring the water's safety before storage and distribution to homes.