What is the main objective of breakpoint chlorination?

The main objective of breakpoint chlorination is to satisfy all demand and disinfect the distribution system. During this process, chlorine is added to water to first satisfy the chlorine demand produced by organic and inorganic materials, such as chloramines and ammonia. Once the chlorine demand is met, adding further chlorine will result in free chlorine residual, which is effective for disinfection.

This technique ensures that sufficient chlorine is present to both neutralize contaminants and provide a residual that can help maintain the disinfection throughout the water distribution system. The proper application of breakpoint chlorination is crucial for effective water treatment, ensuring both safety and compliance with public health standards.

The other options do not accurately reflect the goal of this chlorination process. For instance, creating a stable chlorine concentration may occur as a byproduct, but it is not the primary aim. Increasing turbidity would actually indicate poor water quality, and reducing water pressure is unrelated to the disinfection process. Thus, the focus on satisfying the total demand and accomplishing effective disinfection defines the purpose of breakpoint chlorination.