State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai City 200092, China.
J Hazard Mater. 2013 Sep 15;260:1008-16. doi: 10.1016/j.jhazmat.2013.06.060. Epub 2013 Jul 1.
Degradation of antipyrine (AP) in water by three UV-based photolysis processes (i.e., direct UV, UV/H₂O₂, UV/persulfate (UV/PS)) was studied. For all the oxidation processes, the AP decomposition exhibited a pseudo-first-order kinetics pattern. Generally, UV/H₂O₂ and UV/PS significantly improved the degradation rate relevant to UV treatment alone. The pseudo-first-order degradation rate constants (kobs) were, to different degrees, affected by initial AP concentration, oxidant dose, pH, UV irradiation intensity, and co-existing chemicals such as humic acid, chloride, bicarbonate, carbonate and nitrate. The three oxidation processes followed the order in terms of treatment costs: UV/PS>UV>UV/H₂O₂ if the energy and chemical costs are considered. Finally, the AP degradation pathways in the UV/H₂O₂ and UV/PS processes are proposed. Results demonstrated that UV/H₂O₂ and UV/PS are potential alternatives to control water pollution caused by emerging contaminants such as AP.
研究了三种基于紫外线的光解过程（即直接紫外线、紫外线/过氧化氢、紫外线/过硫酸盐（紫外线/过硫酸盐））对水中安替比林（AP）的降解作用。对于所有氧化过程，AP 的分解都表现出准一级动力学模式。通常，紫外线/过氧化氢和紫外线/过硫酸盐都显著提高了与单独紫外线处理相关的降解速率。准一级降解速率常数（kobs）在不同程度上受到初始 AP 浓度、氧化剂剂量、pH 值、紫外线辐射强度以及腐殖酸、氯、碳酸氢盐、碳酸盐和硝酸盐等共存化学物质的影响。如果考虑能源和化学成本，这三种氧化过程的处理成本顺序为：UV/PS>UV>UV/H₂O₂。最后，提出了 UV/H₂O₂ 和 UV/PS 过程中 AP 降解途径。结果表明，紫外线/过氧化氢和紫外线/过硫酸盐是控制由新兴污染物如 AP 引起的水污染的潜在替代方法。
