The reaction rate of advanced oxidation processes in advanced drinking water purification is mainly affected by several key factors, including the type and concentration of organic pollutants, water pH, oxidant dosage, UV intensity and wavelength, catalyst type and dosage, and reaction temperature. In addition, water quality indicators such as turbidity, suspended solids, color, natural organic matter, alkalinity and hardness also have significant impacts. Moreover, hydraulic retention time and mixing efficiency in the reactor can further influence the overall reaction rate and treatment efficiency.