摘要
以牛粪为主要底物,研究了以KMnO4、O2和KMnO4+O2作为阴极电子受体时,对微生物燃料电池产电性能的影响。实验结果表明,KMnO4+O2作为电子受体时微生物燃料电池的产电效果最好,其输出电压达到0.55 V,电流密度达到88 m A/m2,功率密度达到156 m W/m2。对COD去除率也最高,达86.95%。使用不同的电子受体时,阳极室pH变化规律基本相同,由6.3降至5.2左右,后又回升至6.8,而VFA含量先升高后降低,最终趋于稳定。风干后的阳极反应产物的有机质含量达到91.80%,总养分8.89%,含水率9.02%,达到了有机肥料的标准。
The effect of KMnO4,O2 and KMnO4+O2 as electron acceptors on the electricity generation performance of microbial fuel cells with dairy manure as the main substrate wasstudied.The results showed that the MFC with O2+KMn O4 as electron acceptors had the best electricity generation performance,the output voltage,the current density and power density were 0.55 V,88 mA/m2 and 156 mW/m2 respectively.Besides,the COD removal rate was the highest of 86.95%.When different electron acceptors were used,the changes of p H of the anode chamber were basically the same.It was reduced from about 6.3 to 5.2,and then raised to 6.8.While the VFA content first increased and then decreased,and finally tended to be stable.After air-drying,the organic matter content of the anodic reaction product was 91.80%,total nutrient was 8.89%,and water content was 9.02%,whichreached the standard of organic fertilizer.
作者
陈翔
胡春光
沈建国
宋志文
CHEN Xiang;HU Chunguang;SHEN Jianguo;SONG Zhiwen(School of Environmental and Municipal Engineering,Qingdao University of Technology,266033;Qingdao Engineering Research Center for Rural Environment,College of Resources and Environment,Qingdao Agricultural University,Qingdao 266109,China)
出处
《水处理技术》
CAS
CSCD
北大核心
2020年第3期76-79,共4页
Technology of Water Treatment
基金
国家自然基金资助项目(6622316062)
山东省教育厅科技计划(6682216118).
关键词
微生物燃料电池
牛粪污水
电子受体
产电性能
microbial fuel cell
dairy manuresewage
electron acceptor
electricity generation performance
