【摘要】 选用黄钾铁矾作为类芬顿催化剂催化H₂O₂对废水中的吲哚进行处理,并采用XRD与XPS对黄钾铁矾进行表征分析。考察了该反应体系pH值、黄钾铁矾投加量、H₂O₂浓度以及无机阴离子等对去除效果的影响,并研究了其反应机制。结果表明:黄钾铁矾投加量2 g/L,H₂O₂浓度1 000 mg/L,pH=2.70的条件下吲哚的去除效果好,降解率可达78%,NO^-₃与SO₄^2-对吲哚的去除有抑制作用。通过甲醇淬灭实验证实了吲哚的降解过程中起主要作用的为羟基自由基。。更多还原

【Abstract】 Jarosite as Fenton-like catalyst is selected to catalyze H₂O₂ treating indole wastewater, and it is characterized by XRD and XPS. The effects of pH, dosage of jarosite, H₂O₂ concentration and inorganic anions on the removal efficiency of the reaction system are investigated and the reaction mechanism is studied. The results show that, the optimum efficiency can achieve 78% under the condition of dosage of 2 g/L jarosite, 1 000 mg/L of H₂O₂, pH=2.70. NO^-₃ and SO₄^2- inhibit the removal of indole. Hydroxyl radical is found to play a major role in the degradation of indole by methanol quenching.更多还原