A saturator is used for feeding which solution?

A saturator is a device used to dissolve certain chemicals in water, and in this context, it is specifically designed for feeding sodium fluoride solution. Sodium fluoride is important in water treatment processes, particularly for the fluoridation of drinking water, which helps in the prevention of dental cavities.

In practice, sodium fluoride is often introduced into water systems at controlled concentrations to achieve the desired level of fluoride ions that promote dental health without causing adverse effects. The saturator provides a means of ensuring that the fluoride is evenly dissolved and consistently maintained in the water supply, enhancing its effectiveness as a treatment method.

The other solutions mentioned have different applications; calcium carbonate is typically used for hardness adjustment rather than fluoridation, chlorine solutions are commonly used for disinfection, and sodium hypochlorite is a chlorine compound used primarily for water treatment and sanitation. Therefore, none of these alternatives serve the specific role of a saturator in the context of feeding sodium fluoride solution for fluoridation purposes.