海底微生物燃料电池电催化降解有机碳  

Electro-catalytic degradation of organic carbon by using benthonic microbial fuel cells

作　　者：张业龙[1] 付玉彬[1] 卢志凯[1] 刘媛媛[1] 于建[1] 王丹玉[1] 

机构地区：[1]中国海洋大学材料科学与工程研究院,山东青岛266100

出　　处：《化学工程》2013年第5期10-13,28,共5页Chemical Engineering(China)

基　　金：国家海洋局可再生能源专项资金项目(GHME2011GD04);山东省自然科学重点基金项目(ZR2011BZ008)

摘　　要：利用混酸[V(质量分数32%HNO3)∶V(质量分数49%H2SO4)=1∶1]和Fenton试剂分别改性海底微生物燃料电池(BMFCs)阳极,与未改性的BMFCs(P-BMFC)作对比,研究了BMFCs的产电性能,探索了BMFCs对海底沉积层中有机碳的电催化降解作用。系统运行50 d后测定显示,混酸改性BMFC(H-BMFC),Fenton试剂改性BMFC(F-BMFC)和未改性BMFC(P-BMFC)产生的电量分别为6213,5521,4969 C;对海泥中有机碳的降解率分别为58.9%,39.2%,26.7%,分别是有机碳自然降解效率的58.9倍,39.2倍,26.7倍。结果表明:BMFCs对海底沉积层有机碳电催化加速降解效果明显;BMFCs的产电量与有机碳降解效果具有明显正相关性。为海底污染物绿色化及监测技术提供了新思路。The anodes of benthonic microbial fuel cells （BMFCs） were respectively modified by mixed acid （32% HNO3： 49% H2SO4 = 1：1）, called H-BMFC, and Fenton reagents, called F-BMFC. The electricity production performance and the electro-catalytic degradation of organic carbon in seafloor sediments by using H-BMFC and F-BMFC were investigated and compared with those by using unmodified BMFCs （P-BMFC）. Running for 50 days, the electricity generated by H-BMFC, F-BMFC, P-BMFC is respectively 6213, 5521, 4969 C; the degradation rate of organic carbon by using H-BMFC, F-BMFC, P-BMFC is respectively 58. 9%, 39. 2% , 26.7% , which is separately 58.9, 39.2 and 26.7 times that of by nature. The results show that BMFCs have a promoting effect on degrading organic carbon in seafloor sediments. The degradation rate is obviously positive correlated with the electricity generated. The study provides a new way for greening and monitoring benthonic sludge.

关 键 词：海底微生物燃料电池 电催化降解 有机碳 电池性能 降解速率 

分 类 号：TM911.45[电气工程—电力电子与电力传动]