What is the purpose of a chemical feed system in a water treatment plant?

The primary purpose of a chemical feed system in a water treatment plant is to accurately dose chemicals into the treatment process, such as coagulants and disinfectants. This is crucial for effective water treatment as it ensures that the right amount of chemicals is added to achieve desired treatment goals, such as removing impurities and pathogens from the water. Accurate dosing is key to maintaining water quality, optimizing treatment efficiency, and safeguarding public health.

In contrast, monitoring water pressure plays a supportive role in overall system functionality but is not the main function of a chemical feed system. Recycling water from treated backwash and storing treated water are processes that occur within the broader scope of water treatment operations, but they do not pertain directly to the chemical dosing function, which is what defines the role of a chemical feed system. Therefore, the choice highlighting the accurate dosing of chemicals encapsulates the essential role this system plays in water treatment facilities.