What happens to chloramines and chloro-organics during stage 3 of the Chlorine Demand Curve?

During stage 3 of the Chlorine Demand Curve, chloramines and chloro-organics are primarily being destroyed by increasing chlorine dosage. At this stage, sufficient dissolved chlorine is present to react with these compounds effectively. The initial reaction between chlorine and ammonia forms chloramines, which are then targeted for destruction as chlorine dosage continues to rise.

This phase is crucial in the disinfection process because it ensures that any residual chloramines, which can cause taste and odor issues, as well as potentially harmful byproducts, are significantly reduced. As chlorine is added beyond the point of complete reaction with ammonia, it begins to break down both chloramines and any chloro-organic compounds, ultimately leading to better water quality and reduced overall disinfection by-products.

The other options do not correctly depict what occurs in this stage. Specifically, chloramines being formed is relevant to earlier stages of the chlorine demand curve, while stating that they have no effect on water quality overlooks their known impacts. The stabilization of chloramines would imply that their concentration is held constant, which does not align with the dynamics of chlorine dosage during this phase.