[1]冯桂学,陈燕,孙韶华,等.Fenton氧化法降解水中致嗅物质2,3,6-三氯苯甲醚[J].中国给水排水,2022,38(13):78-82.
　FENGGui-xue,CHENYan,SUNShao-hua,et al.Fenton Oxidation for Degradation of Odorous Compound 2, 3, 6- trichloroanisole in Water[J].China Water & Wastewater,2022,38(13):78-82.
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Fenton氧化法降解水中致嗅物质2,3,6-三氯苯甲醚

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第38卷 期数: 2022年第13期 页码: 78-82 栏目: 出版日期: 2022-07-01
Title:
Fenton Oxidation for Degradation of Odorous Compound 2, 3, 6- trichloroanisole in Water
作者:
冯桂学， 陈燕， 孙韶华， 赵清华， 贾瑞宝
（山东省城市供排水水质监测中心，山东 济南 250021）
Author(s):
FENG　Gui-xue， CHEN　Yan， SUN　Shao-hua， ZHAO　Qing-hua， JIA　Rui-bao
（Shandong Water and Wastewater Monitoring Center， Jinan 250021， China）
关键词:
Fenton氧化法;  致嗅物质;  2; 3; 6-三氯苯甲醚;  影响因素;  反应动力学
Keywords:
Fenton oxidation;  odorous compound;  2;  3;  6-trichloroanisole;  influencing factor;  reaction kinetics
摘要:
采用Fenton高级氧化法降解致嗅物质2，3，6-三氯苯甲醚（2，3，6-TCA），考察其降解效果及动力学，探讨了溶液pH、Fe2+与H2O2物质的量之比、Fe2+浓度和反应时间对Fenton氧化法降解2，3，6-TCA的影响，并确定了最佳反应条件。结果表明，在溶液pH为3.0、Fe2+与H2O2物质的量之比为1∶136、Fe2+浓度为16 mg/L、反应时间为10 min条件下，Fenton氧化法可有效降解水中2，3，6-TCA，降解率可以达到91.6%。Fenton氧化法降解水中2，3，6-TCA的过程符合准一级动力学，且其反应速率常数随2，3，6-TCA初始浓度的升高而降低。水中2，3，6-TCA在Fenton氧化作用下主要发生脱氯反应，生成二氯苯酚。可见，Fenton高级氧化法可以有效应对水中致嗅物质2，3，6-三氯苯甲醚污染问题。
Abstract:
The performance and kinetics of Fenton advanced oxidation process for odorous compound 2, 3, 6-trichloroanisole degradation in water were investigated, the effects of solution pH, molar ratio of Fe2+ and H2O2, Fe2+ concentration and reaction time on the degradation of 2, 3, 6-trichloroanisole were discussed, and the optimum conditions for the degradation of 2, 3, 6-trichloroanisole were determined. When the reaction conditions were as follows: solution pH of 3.0, molar ratio of Fe2+ and H2O2 of 1∶136, Fe2+ concentration of 16 mg/L and the reaction time of 10 min, Fenton oxidation effectively degraded 2, 3, 6-trichloroanisole in water with an removal efficiency of 91.6%. The degradation of 2, 3, 6-trichloroanisole by Fenton advanced oxidation process conformed to quasi-first-order kinetics, and the reaction rate constant decreased with the increase of the initial concentration of 2, 3, 6-trichloroanisole. Fenton oxidation for the degradation of 2, 3, 6-trichloroanisole was dominated by dechlorination, and the intermediate product was dichlorophenol. Therefore, Fenton advanced oxidation is an effective process to deal with the pollution of 2, 3, 6-trichloroanisole in water.
更新日期/Last Update: 2022-07-01