以吲哚为目标物，研究了高铁酸钾[Fe（Ⅵ）]降解吲哚的最佳条件，建立了反应动力学模型，并考察序批投加Fe（Ⅵ）以及Fe（Ⅵ）/H₂O₂优化工艺对吲哚的去除效果。结果表明，25℃、吲哚与Fe（Ⅵ）物质的量比为1∶15、pH为7、反应15 min的条件下，吲哚的去除率为77.91%。吲哚的降解速率符合准一级反应动力学模型，其速率常数为0.134 68 s^-1。序批投加Fe（Ⅵ）5次时，吲哚的去除率提高到92.9%。n[Fe（Ⅵ）]∶n（H₂O₂）为1∶5时，吲哚的去除率提高到87.3%。

Taking indole as the target substance, the optimal conditions for potassium ferrate to degrade indole are studied, the reaction kinetics model is established, and the removal effect of indole by Fe(Ⅵ) and Fe(Ⅵ)/H₂O₂ optimized processes in sequential batches is investigated. The results show that the removal rate of indole reaches 77.91% when the temperature remains at 25℃, the mass ratio of indole to Fe(Ⅵ) is 1∶15, the solution pH is 7, and the reaction lasts for 15 minutes. The degradation rate of indole accords with the quasi-first order reaction kinetic model, and the rate constant is 0.134 68 s^-1. When Fe(Ⅵ) is added for 5 times in sequential batches, the removal rate of indole increases to 92.9%. When the molar ratio of Fe(Ⅵ)∶H₂O₂ is 1∶5, the removal rate of indole rises to 87.3%.

张继红(1996-),女,硕士研究生,研究方向为水污染控制,1395842941@qq.com