剩余污泥微生物燃料电池产电性能的优化试验研究
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摘要
通过优化阴极材料,构建新型单室无膜壁式空气阴极微生物燃料电池,开展了污泥浓度、阳极面积、导线材料和NaCl离子浓度等影响因素及其优化试验研究。结果显示:在恒温30℃和外接电阻1 000Ω的条件下,以铜线为导线,污泥浓度为21 000 mg/L,阳极面积为31.4 cm2,Na+浓度为200 mmol/L时,其产电性能最佳,最大电压为597 mV,最大输出功率密度为301 mW/m2,内阻为92.5Ω。此外,还分析了污泥运行过程中的变化。与目前其他以未经过预处理的剩余污泥作为底物的微生物燃料电池相比,该新型单室无膜壁式空气阴极微生物燃料电池功率密度较高,内阻较低。
Based on the previous studies, this experiment presented a new kind of microbial fuel cells(MFC), single-chamber air cathode microbial fuel cells without proton membrane. After investigating the influencing factors and optimizing the parameters such as sludge concentration, anode area, conductor and NaCl concentration, it was found that under the conditions of the constant temperature 30 ℃,external resistance 1 000 Ω,copper wire as conductor,sludge concentration 21 000 mg/L,anode area 31.4 cm2 and Na+concentration 200 mmol/L, a better production performance with the maximum voltage of 597 mV, the maximum output power density of 301 mW/m2 and the internal resistance of 92.5 Ω was achieved. Also the changes of sludge in this process were analyzed. Compared with the recent MFC with untreated excess sludge as substrate, the electricity production performance of MFC in this experiment shows higher power density and lower internal resistance.
Based on the previous studies, this experiment presented a new kind of microbial fuel cells(MFC), single-chamber air cathode microbial fuel cells without proton membrane. After investigating the influencing factors and optimizing the parameters such as sludge concentration, anode area, conductor and NaCl concentration, it was found that under the conditions of the constant temperature 30 ℃,external resistance 1 000 Ω,copper wire as conductor,sludge concentration 21 000 mg/L,anode area 31.4 cm2 and Na+concentration 200 mmol/L, a better production performance with the maximum voltage of 597 mV, the maximum output power density of 301 mW/m2 and the internal resistance of 92.5 Ω was achieved. Also the changes of sludge in this process were analyzed. Compared with the recent MFC with untreated excess sludge as substrate, the electricity production performance of MFC in this experiment shows higher power density and lower internal resistance.
引文
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[14]侯彬.同步脱色刚果红与产电的微生物燃料电池的性能和机理研究[D].广州:华南理工大学,2011.Hou Bin.Synchronous Decolorization of Congo Red and the Performance and Mechanism of Electricity Production by Microbial Fuel Cell Research[D].Guangzhou:South China University of Technology,2010.(in Chinese)
[15]He Zhen,Largus T Angenent.Application of bacterial biocathodes in microbial fuel cells[J].2011,56:57-60.
[16]Liu H,Shwoan C,Bruce E.Production of electricity during wastewater treatment using a single chamber microbial fuel cell[J].Environ.Sci.Technol,2004,38:2281-2285.
[17]方丽.微波预处理污泥上清液为燃料的微生物燃料电池研究[D].长沙:湖南大学,2010.
[18]左剑恶,崔龙涛,范明志,等.以模拟有机废水为基质的单池微生物燃料电池的产电能[J].太阳能学报,2007,28(3):320-323.Zuo Jian’e,Cui Longtao,Fan Mingzhi,et al.Microbial fuel cell to produce electricity with simulated organic wastewater as the substrate[J].Journal of Solar Energy,2007,28(3):320-323.(in Chinese)
[19]Logan B E Microbial fuel cell[M].New York:Johan Wiley&Sons Inc,2007:50-53.
[20]贾斌.剩余污泥为燃料的微生物燃料电池研究[D].长沙:湖南大学,2008.
[2]Gil G C,Chang I S,him B H,et al.Operational parameters affecting the performance of a mediator-less microbial fuel cell[J].Biosensors and Bioelectronics,2003,18(4):327-334.
[3]王烨.微生物燃料电池法污泥消化与产电试验研究[D].合肥:合肥工业大学,2009.Wang Ye.Method of Microbial Fuel Cell on Sludge Digestion and Electricity Production Test[D].Hefei:Hefei University of Technology,2009.(in Chinese)
[4]贾斌,刘志华,李小明,等.剩余污泥为燃料的微生物燃料电池产电特性研究[J].环境科学,2009,30(4):1227-1231.Jia Bin,Liu Zhihua,Li Xiaoming,et al.Excess sludge as fuel of microbial fuel cell to produce electrical characteristics[J].Journal of Environmental Science,2009,30(4):1227-1231.(in Chinese)
[5]杨慧,刘志华,李小明,等.外加酶强化剩余污泥微生物燃料电池产电特性的研究[J].环境科学,2012,33(1):216-221.Yang Hui,Liu Zhihua,Li Xiaoming,et al.Plus enzyme to strengthen electrical property of excess sludge microbial fuel cell[J].Journal of Environmental Science,2012,33(1):216-221.(in Chinese)
[6]赵庆良,姜珺秋,王琨,等.微生物燃料电池处理剩余污泥与同步产电性能[J].哈尔滨工程大学学报,2010,31(6):780-785.Zhao Qingliang,Jiang Junqiu,Wang Kun,et al.Microbial fuel cells to deal with excess sludge and synchronous electrical production[J].Journal of Harbin Engineering University,2010,31(6):780-785.(in Chinese)
[7]陈青,周顺桂,袁勇,等.外阻对污泥微生物燃料电池产电以及有机物降解的影响[J].生态环境学报,2011,20(5):946-950.Chen Qin,Zhou Shungui Yuan Yong,et al.Resistance of sludge microbial fuel cell to produce electricity and the influence of organic matter degradation[J].Journal of Ecological Environment,2011,20(5):946-950.(in Chinese)
[8]刘志华,李小明,杨慧,等.不同处理方式污泥为燃料的微生物燃料电池特性研究[J].中国环境科学,2012,32(3):523-528.Liu Zhihua,Li Xiaoming,Yang Hui,et al.Different ways to deal with the sludge as fuel characteristics of microbial fuel cell[J].Journal of Environmental Science in China,2012,32(3):523-528.(in Chinese)
[9]刘志华,李小明,方丽,等.污泥为燃料的微生物燃料电池运行特性研究[J].中国环境科学,2012,32(2):268-273.Liu Zhihua,Li Xiaoming,Fang Li,et al.Microbial fuel cells running characteristics of the sludge as fuel[J].Journal of Environmental Science in China,2012,32(2):268-273.(in Chinese)
[10]Liu H,Logan BE.Power electronic converters for microbial fuel cell energy extraction:effects of inductance,duty ratio and switching frequency[J].Journal of Power Sources,2012,220(14):89-94.
[11]严丰,黄少斌,许玫英,等.微生物燃料电池处理晚期垃圾渗滤液的特性研究[J].工业水处理,2013,33(1):52-55.Yan Feng,Huang Shaobin,Xu Meiying,et al.Microbial fuel cells processing characteristics of landfill leachate[J].Industrial Water Treatment,2013,33(1):52-55.(in Chinese)
[12]Rozendal R A,Hamelers H V,Euverink G J,et al.Princi pleand Perspectives of hydrogen production through biocatalyzed electrolysis[J].International Journal of Hydrogen Energy,2006,31(12):1632-1640.
[13]郑峣.剩余污泥的微生物燃料电池的产电性能及基质变化研究[D].长沙:湖南大学,2010.Zheng Yao.Excess Sludge Production Performance of Microbial Fuel Cells and Matrix Change[D].Changsha:University of Hunan,2010.(in Chinese)
[14]侯彬.同步脱色刚果红与产电的微生物燃料电池的性能和机理研究[D].广州:华南理工大学,2011.Hou Bin.Synchronous Decolorization of Congo Red and the Performance and Mechanism of Electricity Production by Microbial Fuel Cell Research[D].Guangzhou:South China University of Technology,2010.(in Chinese)
[15]He Zhen,Largus T Angenent.Application of bacterial biocathodes in microbial fuel cells[J].2011,56:57-60.
[16]Liu H,Shwoan C,Bruce E.Production of electricity during wastewater treatment using a single chamber microbial fuel cell[J].Environ.Sci.Technol,2004,38:2281-2285.
[17]方丽.微波预处理污泥上清液为燃料的微生物燃料电池研究[D].长沙:湖南大学,2010.
[18]左剑恶,崔龙涛,范明志,等.以模拟有机废水为基质的单池微生物燃料电池的产电能[J].太阳能学报,2007,28(3):320-323.Zuo Jian’e,Cui Longtao,Fan Mingzhi,et al.Microbial fuel cell to produce electricity with simulated organic wastewater as the substrate[J].Journal of Solar Energy,2007,28(3):320-323.(in Chinese)
[19]Logan B E Microbial fuel cell[M].New York:Johan Wiley&Sons Inc,2007:50-53.
[20]贾斌.剩余污泥为燃料的微生物燃料电池研究[D].长沙:湖南大学,2008.