| 二氧化锰氧化降解乙炔基雌二醇的动力学研究 |
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| 引用本文： | 季虹,姜理英,张璐,陈建孟,黄成.二氧化锰氧化降解乙炔基雌二醇的动力学研究[J].环境科学与技术,2011,34(12):39-44. |
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| 作者姓名： | 季虹 姜理英 张璐 陈建孟 黄成 |
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| 作者单位： | 浙江工业大学生物与环境工程学院,浙江杭州,310032 |
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| 基金项目： | 浙江省自然科学基金项目(Y506237); 浙江省科技厅分析测试项目(2008F70014) |
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| 摘 要： | 研究了化学合成的新生态δ-MnO2对乙炔基雌二醇(EE2)的氧化降解动力学,并且考察了δ-MnO2投加重、EE2初始浓度、初始pH值等因素对EE2降解动力学的影响.结果表明:EE2对新生态水合δ-MnO2的氧化作用具有较强的反应感受性,且在pH值一定和δ-MnO2充分过量的条件下,EE2氧化降解的反应动力学并不是简单的...
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| 关 键 词： | δ-MnO2 乙炔基雌二醇(EE2) 动力学 雌激素效应 |
Degradation Kinetics of Ethinyl Estradiol(EE2) Removal by Aqueous Manganese Dioxide |
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| JI Hong,JIANG Li-ying,ZHANG Lu,CHEN Jian-meng,HUANG Cheng.Degradation Kinetics of Ethinyl Estradiol(EE2) Removal by Aqueous Manganese Dioxide[J].Environmental Science and Technology,2011,34(12):39-44. |
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| Authors: | JI Hong JIANG Li-ying ZHANG Lu CHEN Jian-meng HUANG Cheng |
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| Institution: | JI Hong,JIANG Li-ying,ZHANG Lu,CHEN Jian-meng,HUANG Cheng(School of Biological and Environmental Engineering,Zhejiang University of Technology,Hangzhou 310032,China) |
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| Abstract: | Oxidative degradation of ethinyl estradiol(EE2) by δ-MnO2 was investigated in batch experiments,and the influence of δ-MnO2 dosage,initial EE2 concentration and pH value on the reaction kinetics was discussed.Results showed that during the process,EE2 was degraded byδ-MnO2 efficiently in aqueous solutions,and the oxidative degradation deviated from the pseudo-first-order kinetics at a constant pH and with an enough excess of δ-MnO2.δ-MnO2 dosage and initial EE2 concentration had a positive effect on oxidative transformation of EE2,and the initial reaction rate increased as pH decreasing.A bioassay method using the cells of recombinant gene yeast was used to determine the activity of estrogen in the process,it was found that 55% of the estrogenic activity was reduced after 8h reaction by MnO2,which indicated that both of EE2 concentration and estrogenic activity could be reduced by MnO2 effectively. |
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| Keywords: | δ-MnO2 ethinyl estradiol(EE2) reaction kinetics estrogenic activity |
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