摘要微生物燃料电池（Microbial fuel cell）可以通过微生物的催化作用将燃料内储存的化学能直接转化为电能，已经成为当前环境工程领域运用于废水处理及同步产电的新兴技术，可用于处理多种类型的废水。畜禽废水由于其高有机物浓度、高氨氮含量的特点，成为了含氮污染物废水生化处理领域的难题。本文通过构建双极室联合生物电化学系统，将其运用于实际畜禽废水污染物去除研究，并重点考察硝氮浓度、HRT及外阻的变化对MFC系统脱氮及产电性能的影响，同时通过阳极碳毡上生物膜外部EPS及细胞色素c含量的测定，探究其与MFC产电性能及电子传递影响机理。研究结果表明：硝氮促进反硝化作用，但对MFC产电存在抑制作用；HRT=6 h，外阻=250 Ω为本系统最优参数；MFC用于实际畜禽废水处理性能较低，推荐作为畜禽废水后续深度处理工艺环节；生物膜外EPS及细胞色素c含量与电压输出呈正相关，即对电子传递起促进作用。28486
 关键词  畜禽废水  微生物燃料电池  阳极反硝化  产电  EPS
毕业论文设计说明书外文摘要
Title  The study of electrochemical properties of  bioelectrochemical  systems for the treatment of livestock wastewater
Abstract
Microbial fuel cells can transfer the stored chemical energy directly into electricity with the catalysis of microorganisms, so it has become the emerging technology which was applied to simultaneous wastewater treatment and electricity generation in the field of environmental engineering. Livestock poultry wastewater with high concentrations of organic matter and nitrogen has become a problem in the field of degradation for nitrogenous pollutants in water. In this experiment, we construct a two-chamber bioelectrochemical system to study the pollutant removal performance of MFC when used to the actual livestock poultry wastewater, and focus on the effect of nitrate concentration, HRT and external resistance on MFC performance. At the same time, we measured the EPS and cytochrome c content outside the biofilm on the anode carbon felt to explore the relationship between the two with the electron transport mechanism. The results showed that: Nitrate promotes denitrification, but inhibits electricity production; HRT = 6 h, external resistance = 250 Ω are the optimal parameters; MFC showed low performance in actual livestock wastewater treatment, we recommended that it could be set as the follow-depth treatment process for livestock poultry wastewater treatment; the EPS and cytochrome c content were positively correlated with the voltage output, namely they played a catalytic role in electron transfer.
Keywords  livestock poultry wastewater, microbial fuel cell, anode denitrification, electricity production, EPS
目   次
1 绪论    1
1.1 高氨氮废水处理的研究现状    1
1.2 MFC研究现状    4
1.3 研究内容    7
2 实验部分    8
2.1 反应器构型    8
2.2 原料与试剂    8
2.3 实验仪器及设备    9
2.4 实验方法    9
3 MFC的正常启动    13
3.1 启动操作    13
3.2 生物群落分析    13
3.3 SEM扫描电镜    15
4 不同硝氮初始浓度对MFC性能影响研究    16
4.1 不同初始硝氮浓度下的电压变化    16
4.2 库伦效率    16
4.3 不同初始浓度下硝酸盐降解情况    17
4.4 过高浓度硝氮对微生物的抑制作用    18
4.5 不同硝氮浓度下MFC内阻变化    19
4.6 本章小结    19
5 反应器HRT及外阻参数优化    21 用于处理畜禽废水的生物电化学系统性能研究:http://www.751com.cn/huaxue/lunwen_23343.html