非均相催化剂黄钾铁矾处理含吲哚污水的研究  

Study on Treatment of Indole Wastewater with Heterogeneous Catalyst Jarosite

作　　者：武琪 卢永昌 夏冬冬 张继龙[2] 李晋[1] 高丽丽[1] WU Qi;LU Yongchang;XIA Dongdong;ZHANG Jilong;LI Jin;GAO Lili(College of Environmental Science and Engineering, Taiyuan University of Technology Taiyuan 036000)

机构地区：[1]太原理工大学环境科学与工程学院,太原036000 [2]太原理工大学矿业与工程学院,太原036000

出　　处：《工业安全与环保》2019年第6期80-85,共6页Industrial Safety and Environmental Protection

基　　金：山西省重点研发计划项目(201703D32111270);山西省自然科学基金面上基金(201601D102013)

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%,NO3^-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。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. NO3^- 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.

关 键 词：类芬顿 吲哚 黄钾铁矾 催化氧化 

分 类 号：X703[环境科学与工程—环境工程]