典型文献
High-gravity intensified iron-carbon micro-electrolysis for degradation of dinitrotoluene
文献摘要：
The application of iron-carbon(Fe-C)micro-electrolysis to wastewater treatment is limited by the passivation potential of the Fe-C packing.In order to address this problem,high-gravity intensified Fe-C micro-electrolysis was proposed in this study for degradation of dinitrotoluene wastewater in a rotating packed bed(RPB)using commercial Fe-C particles as the packing.The effects of reaction time,high-gravity factor,liquid flow rate and initial solution pH were investigated.The degradation intermediates were determined by gas chromatography-mass spectrometry,and the possible degradation pathways of nitro compounds by Fe-C micro-electrolysis in RPB were also proposed.It is found that under optimal conditions,the removal rate of nitro compounds reaches 68.4％at 100 min.The removal rate is maintained at approximately 68％after 4 cycles in RPB,but it is decreased substantially from 57.9％to 36.8％in a stirred tank reactor.This is because RPB can increase the specific surface area and the renewal of the liquid-solid interface,and as a result the degradation efficiency of Fe-C micro-electrolysis is improved and the active sites on the Fe-C surface can be regenerated for continuous use.In conclusion,high-gravity intensified Fe-C micro-electrolysis can weaken the passivation of Fe-C particles and extend their service life.
文献关键词：
中图分类号：
作者姓名：
Jiaxin Jing;Weizhou Jiao;Zhixing Li;Kechang Gao;Jingwen Zhang;Gaomiao Ren;Youzhi Liu
作者机构：
Shanxi Province Key Laboratory of Higee-Oriented Chemical Engineering,North University of China,Taiyuan 030051,China
文献出处：
引用格式：
[1]Jiaxin Jing;Weizhou Jiao;Zhixing Li;Kechang Gao;Jingwen Zhang;Gaomiao Ren;Youzhi Liu-.High-gravity intensified iron-carbon micro-electrolysis for degradation of dinitrotoluene)[J].化学科学与工程前沿,2022(11):1595-1605
A类：
dinitrotoluene
B类：
High,gravity,intensified,iron,carbon,micro,electrolysis,degradation,application,wastewater,treatment,limited,by,passivation,potential,packing,In,order,address,this,problem,high,proposed,study,rotating,packed,bed,RPB,using,commercial,particles,effects,reaction,liquid,flow,initial,solution,were,investigated,intermediates,determined,gas,chromatography,mass,spectrometry,possible,pathways,compounds,also,It,found,that,under,optimal,conditions,removal,reaches,maintained,approximately,after,cycles,but,decreased,substantially,from,stirred,tank,reactor,This,because,can,increase,specific,surface,area,renewal,solid,interface,result,efficiency,improved,active,sites,regenerated,continuous,conclusion,weaken,extend,their,service,life
AB值：
0.490182
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