The degradation of five selected emerging contaminants (ECs) including 1H-benzotriazole (BZ), N,N-diethyl-m-toluamide or DEET (DT), chlorophene (CP), 3-methylindole (ML), and nortriptyline hydrochloride (NH) in aqueous solutions by UV-activated persulfate (UV/PS) has been investigated. Selected ECs were not effectively degraded by direct UV photolysis or dark PS. However, their photodegradation efficiency significantly increased with addition of PS due to the generation of SO₄⁻ and HO. Second order rate constants for the reaction between SO₄⁻ and each EC were determined by competition kinetics, being the values at pH 7 2.0 × 10¹⁰, 1.2 × 10¹⁰, 1.8 × 10⁹, 1.1 × 10⁹ and 9.5 × 10⁸ M⁻¹ s⁻¹ for NH, ML, CP, BZ and DT, respectively. While the dose of PS exerted a positive influence on the degradation of ECs, the highest degradation rate was observed at near neutral pH. With respect to the influence of background water matrix constituents, bicarbonate showed an inhibition effect on the removal of DT, BZ and NH and promoted the degradation of CP and especially of ML, which can be explained by their high reaction rate with carbonate radicals. The presence of humic acids inhibited the degradation of selected ECs, probably due to light screening and radical scavenging. Both radical species SO₄⁻ and HO exert an important role on the oxidation of the ECs investigated by the UV/PS system, being the contribution of SO₄⁻ predominant for those compounds that present high reactivity with this radical. Although the presence of inorganic and organic matter in real water matrices decreased the degradation rate of selected ECs, UV/PS process is an efficient option for their removal from contaminated waters.

五个选定的新兴污染物（EC）的降解，包括1H-苯并三唑（BZ），N，N-二乙基间甲苯胺或DEET（DT），氯酚（CP），3-甲基吲哚（ML）和去甲替林盐酸盐（NH） ）在水溶液中被UV活化的过硫酸盐（UV / PS）进行了研究。选定的EC不能被直接的UV光解或深色PS有效降解。然而，它们的降解效率显著，另有PS的增加，由于SO的生成₄ ^-和HO 。二级速率常数为SO之间的反应₄ ^- ，并且每个EC通过竞争确定动力学，在pH 7 2.0×10为值¹⁰，1.2×10 ¹⁰，1.8×10 ⁹，1.1×10对于NH，ML，CP，BZ和DT分别为⁹和9.5×10 ⁸  M ^-1  s ^-1。虽然PS剂量对EC的降解具有积极影响，但在接近中性pH时观察到最高的降解速率。就本底水基质成分的影响而言，碳酸氢盐显示出对DT，BZ和NH去除的抑制作用，并促进了CP尤其是ML的降解，这可以用碳酸氢根与碳酸根的高反应速率来解释。腐殖酸的存在抑制了某些EC的降解，这可能是由于光屏蔽和自由基清除所致。这两种自由基SO ₄ ^-和HO施加在内皮细胞的氧化中起重要作用通过UV / PS系统的调查，是SO的贡献₄ ^-主要为那些化合物与本基团，其存在高反应性。尽管实际水基质中无机物和有机物的存在降低了所选EC的降解速度，但UV / PS工艺是将其从污染水中去除的有效选择。