| 超声波/Fenton试剂联用降解水中的吡啶 |
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| 引用本文： | 张良波,魏新利.超声波/Fenton试剂联用降解水中的吡啶[J].环境化学,2009,28(3). |
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| 作者姓名： | 张良波 魏新利 |
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| 作者单位： | 1. 同济大学污染控制与资源化国家重点实验室,上海,200092
2. 郑州大学化学工程学院,郑州,450002 |
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| 摘 要： | 采用超声波/Fenton联用技术降解水中的吡啶,探讨了吡啶初始浓度、反应温度、pH值、H2O2浓度、超声波声能密度和超声波频率对降解效果的影响及规律,实验发现,在所研究的吡啶初始浓度范围内,随着吡啶初始浓度的增大,其降解率减小;同时,随着反应温度、pH值、H2O2浓度和超声波声能密度的增大,吡啶的降解率增大;对于24.55kHz和30.19kHz两种频率而言,超声波频率愈高吡啶的去除率愈大,而对于30.19kHz和34.19kHz两种频率而言,吡啶去除率随频率的变化关系不明显,超声波和Fenton联用对吡啶进行降解比二者单独降解吡啶有更好的处理效果,另外,对于不同初始浓度的吡啶溶液来说,在所研究的浓度范围内,超声波/Fenton试剂联用降解吡啶的反应属于一级动力学反应,
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| 关 键 词： | 超声 Fenton试剂 降解 吡啶. |
THE DEGRADATION OF PYRIDINE IN AQUEOUS SOLUTION BY THE ULTRASOUND/FENTON' S REAGENT |
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| ZHANG Liang-bo,WEI Xin-li.THE DEGRADATION OF PYRIDINE IN AQUEOUS SOLUTION BY THE ULTRASOUND/FENTON' S REAGENT[J].Environmental Chemistry,2009,28(3). |
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| Authors: | ZHANG Liang-bo WEI Xin-li |
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| Institution: | 1 State Key Laboratory of Pollution Control and Resources Reuse;Tongji University;Shanghai;200092;China2 Chemical Engineering College of Zhengzhou University;Zhengzhou;450002;China |
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| Abstract: | The study on degradation of pyridine in aqueous solution by ultrasound wave and Fenton's reagent has been given in this paper. The influence on degradation and laws by several factors ,which include the initial concentration of pyridine, the reaction temperature, the initial pH, the concentration of H2O2, the energy density and the frequency of ultrasound, have been discussed. The results show that the degradation efficiency of pyridine decreases with the increasing of the initial concentration of pyridine ... |
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