| 生物膜电极法降解硝基苯的研究 |
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| 引用本文： | 许炉生,吴伟勇,张永,方彩萍,张国亮.生物膜电极法降解硝基苯的研究[J].环境科学与技术,2011,34(2):78-81. |
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| 作者姓名： | 许炉生 吴伟勇 张永 方彩萍 张国亮 |
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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,310014 |
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| 基金项目： | 浙江省教育厅科研计划项目(20040584) |
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| 摘 要： | 文章研究了生物膜电极对硝基苯的降解。初始浓度43mg/L时,培养驯化后的生物膜电极对硝基苯的24h去除率可达94.52%。继续提高硝基苯初始浓度,实验得到的峰值降解能力为296mg/dm.2d。动力学特征分析表明,降解为底物抑制的生物催化。质谱检测了硝基苯降解中间产物,并推测其开环途径为还原过程,阴极还原性对开环历程起到关键性影响。
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| 关 键 词： | 生物膜电极 硝基苯 降解途径 中间产物 |
Nitrobenzene Degradation by Biofilm-electrode Process |
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| XU Lu-sheng,WU Wei-yong,ZHANG Yong,FANG Cai-ping,ZHANG Guo-liang.Nitrobenzene Degradation by Biofilm-electrode Process[J].Environmental Science and Technology,2011,34(2):78-81. |
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| Authors: | XU Lu-sheng WU Wei-yong ZHANG Yong FANG Cai-ping ZHANG Guo-liang |
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| Institution: | XU Lu-sheng,WU Wei-yong,ZHANG Yong,FANG Cai-ping,ZHANG Guo-liang(School of Biological and Environmental Engineering,Zhejiang University of Technology,Hangzhou 310014,China) |
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| Abstract: | Nitrobenzene degradation by biofilm-electrode was studied.Under the condition of initial concentration 43 mg/L,nitrobenzene was removed up to 94.52%after treating 24 h by biofilm-electrode that been cultured and domesticated.Continuing to promote the initial concentration of nitrobenzene,the peak value of degradation ability reached 296 mg/(dm2·d).Analysis of dynamic characteristics showed that the degradation is a biocatalyst process combined with substrate inhibition.With mass spectrum,intermediate product of nitrobenzene degradation was detected,and the ring opening path was speculated as a deoxidization process.Reducibility of cathode made a key effect on ring opening course. |
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| Keywords: | biofilm-electrode nitrobenzene degradation path intermediate product |
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