Final answer:
In water treatment plants, the three main objectives are controlling pH, turbidity, and disinfection. Option D is correct.
Step-by-step explanation:
In the operation of water treatment plants, the three basic objectives are controlling pH, Turbidity, and Disinfection.
Controlling pH is important because it affects the solubility and reactivity of chemicals in the water. The pH of water can be adjusted using chemicals such as acids or bases to maintain a desired range.
Turbidity refers to the cloudiness or haziness of the water caused by the presence of suspended particles. Turbidity can be controlled through filtration processes that remove the particles and clarify the water.
Disinfection is crucial to eliminate harmful bacteria, viruses, and other microorganisms in the water. Common disinfection methods include the use of chlorine, ozone, or ultraviolet light.
pH is important for chemical solubility, turbidity is the cloudiness of water caused by particles, and disinfection eliminates harmful microorganisms.