| 漆酶包埋修饰阴极提高生物-电-芬顿处理聚醚废水处理效率 |
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| 引用本文： | 冯俊生,李娜,陈曼佳,刘亮,孙卓,姚海祥,蔡晨.漆酶包埋修饰阴极提高生物-电-芬顿处理聚醚废水处理效率[J].环境科学学报,2018,38(3):1031-1039. |
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| 作者姓名： | 冯俊生 李娜 陈曼佳 刘亮 孙卓 姚海祥 蔡晨 |
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| 作者单位： | 常州大学环境与安全工程学院, 常州 213164,常州大学环境与安全工程学院, 常州 213164,广东省生态环境技术研究所, 广州 510650,1. 常州大学环境与安全工程学院, 常州 213164;2. 常州大学怀德学院, 靖江 214500,常州大学环境与安全工程学院, 常州 213164,常州大学环境与安全工程学院, 常州 213164,常州大学环境与安全工程学院, 常州 213164 |
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| 基金项目： | 江苏省科技项目（No.BY2015027-06）；广东省自然科学基金（No.2015A030313752） |
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| 摘 要： | 利用漆酶包埋修饰碳毡阴极构建微生物燃料电池-电-芬顿体系强化降解聚醚废水.结果表明,在pH为4,漆酶浓度为7 mg·mL~(-1)时,24 h后阴极室聚醚废水COD降解率达68.1%,比未修饰的碳毡阴极提高28%.漆酶修饰阴极强化电池的产电性能和提高H_2O_2的浓度,且H_2O_2的浓度在此工艺中起关键作用.微生物燃料电池最大电压达548 mV,H_2O_2最大浓度为3.14 mg·L~(-1),分别比碳毡阴极提高21.8%和25.6%.从三维荧光谱图中得出聚醚废水中的双酚和甲苯二胺等荧光物质被降解.综上所述,漆酶包埋修饰阴极是提高MFC-electro-Fenton处理聚醚废水效率的有效途径.
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| 关 键 词： | 微生物燃料电池-电-芬顿 聚醚废水 漆酶 COD降解 H2O2浓度 |
| 收稿时间： | 2017/7/4 0:00:00 |
| 修稿时间： | 2017/8/12 0:00:00 |
Laccas modified cathode for enhanced efficiency of polyether wastewater treatment in the MFC-eletron-Fenton system |
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| FENG Junsheng,LI N,CHEN Manji,LIU Liang,SUN Zhuo,YAO Haixiang and CAI Chen.Laccas modified cathode for enhanced efficiency of polyether wastewater treatment in the MFC-eletron-Fenton system[J].Acta Scientiae Circumstantiae,2018,38(3):1031-1039. |
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| Authors: | FENG Junsheng LI N CHEN Manji LIU Liang SUN Zhuo YAO Haixiang and CAI Chen |
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| Institution: | College of Environmental and Safety Engineering, Changzhou University, Changzhou 213164,College of Environmental and Safety Engineering, Changzhou University, Changzhou 213164,Guangdong Ecological Environment Technology Research Institute, Guangzhou 510650,1. College of Environmental and Safety Engineering, Changzhou University, Changzhou 213164;2. The Wilder School, Changzhou university, Jingjiang 214500,College of Environmental and Safety Engineering, Changzhou University, Changzhou 213164,College of Environmental and Safety Engineering, Changzhou University, Changzhou 213164 and College of Environmental and Safety Engineering, Changzhou University, Changzhou 213164 |
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| Abstract: | To further enhance the degradation of polyether wastewater, the carbon felt cathode in the MFC-electro-Fenton system is modified andembedded with laccase. We find that at a pH 4 and a laccase concentration of 7 mg·mL-1, the COD degradation rate of the polyether wastewater rises to 68.1% after 24 h, 28% higher than that of the unmodified carbon felt. Furthermore, laccase modified cathode can improve the electricity production and increase the concentration of H2O2, which plays a key role in polyether wastewater degradation. The maximum voltage of MFC is 548 mV and the maximum concentration of H2O2 reaches 3.14 mg·L-1, 21.8% and 25.6% respectively higher than that of unmodified carbon felt. From the three-dimensional fluorescence spectrum analysis, it is found that the fluorescent substances such as bisphenol and toluene diamine in the polyether wastewater are degraded. In summary, embedding laccase to modify carbon felt cathode is an effective way to improve polyether wastewater treatment in an MFC-electro-Fenton system. |
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| Keywords: | microbial fuel cell-electro-Fenton polyether wastewater laccase COD degradation the concentration of H2O2 |
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