• 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

• 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）

• 冯俊生
• 常州大学环境与安全工程学院, 常州 213164

• 李娜
• 常州大学环境与安全工程学院, 常州 213164

• 陈曼佳
• 广东省生态环境技术研究所, 广州 510650

• 刘亮
• 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

• 孙卓
• 常州大学环境与安全工程学院, 常州 213164

• 姚海祥
• 常州大学环境与安全工程学院, 常州 213164

• 蔡晨
• 常州大学环境与安全工程学院, 常州 213164

• 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H₂O₂的浓度，且H₂O₂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，H₂O₂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.

• 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.

• Key words：microbial fuel cell-electro-Fenton  polyether wastewater  laccase  COD degradation  the concentration of H₂O₂

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