Bicarbonate (HCO) and phosphate (HPO) ions enhance the degradation of sulfaclozine (SCL) in certain advanced oxidation process (AOP) systems (UV/TiO and UV/TiO/KSO), while humic substances have a lesser impact.
The UV/KSO system is inhibited by humic substances and is unaffected by HCO and HPO, highlighting the different effects of these constituents on various AOPs.
The study also revealed that new reactive species formed in the presence of HCO and HPO, like carbonate (CO) and hydroxyl (·OH) radicals, contribute to the increased degradation rate of SCL.