典型文献
New mechanism of FA in composted sludge inducing Cu fixation on Albite in open-pit mine soil
文献摘要：
Fulvic acid(FA),typical organic matter derived from humification process in composted sludge,possesses the potential to remediate mine soils contaminated by heavy metals.To understand the cooper(Cu)immobilizing process in open-pit mine soil induced by FA,changes of Cu speciation in mixture of open-pit mine soil and composted sludge was tracked over 180 days.It was observed that the organic-bound and residual fraction of Cu increased dramatically with the corresponding decrease of Fe/Mn oxide-bound Cu in the first 60 days,then the organic-bound fraction decreased to about its initial proportion during 60-120 days,while residual fraction still increased,and the proportion of residual Cu accounted for over 85％and became stable after 120 days.To reveal the mechanism of FA inducing Cu fixation on Albite which is the main phase of soil primary ore,two groups of Cu adsorption experi-ments with and without FA were designed.With the addition of FA,the adsorption capacity of Cu by Albite increased by 1.55 times and the content of residual Cu in Albite increased by 7.7 times.It was found that the Cu absorbed in smaller Albite particle induced by FA formed a secondary mineral——Chrysocolla,causing increase of residual fraction of Cu.These re-sults revealed the mechanism:FA was absorbed on the surface of Albite after complexing with Cu ions in the solution,and then it induced Cu into the interlayer and pore channels of Albite.The Cu in the Albite was immobilized by forming Chrysocolla finally.
文献关键词：
中图分类号：
作者姓名：
Jiapeng Wan;Yifan Zeng;Mei Wang;Bin Dong;Zuxin Xu
作者机构：
State Key Laboratory of Pollution Control and Resource Reuse,College of Environmental Science and Engineering,Tongji University,Shanghai 200092,China;YANGTZE Eco-Environment Engineering Research Center,China Three Gorges Corporation,Beijing 100038,China;Shanghai Investigation Design&Research Institute Co.Ltd,Shanghai 200335,China
文献出处：
引用格式：
[1]Jiapeng Wan;Yifan Zeng;Mei Wang;Bin Dong;Zuxin Xu-.New mechanism of FA in composted sludge inducing Cu fixation on Albite in open-pit mine soil)[J].环境科学学报（英文版）,2022(06):142-150
A类：
composted,Albite,remediate,Chrysocolla
B类：
New,mechanism,FA,sludge,inducing,fixation,open,pit,Fulvic,acid,typical,organic,matter,derived,from,humification,process,possesses,potential,soils,contaminated,by,heavy,metals,To,understand,cooper,immobilizing,induced,changes,speciation,mixture,was,tracked,over,days,It,observed,that,bound,residual,fraction,increased,dramatically,corresponding,Mn,oxide,first,then,decreased,about,its,initial,proportion,during,while,still,accounted,became,stable,after,which,main,phase,primary,two,groups,adsorption,experi,ments,without,were,designed,With,addition,capacity,times,content,found,absorbed,smaller,particle,formed,secondary,mineral,causing,These,sults,revealed,surface,complexing,ions,solution,into,interlayer,pore,channels,immobilized,forming,finally
AB值：
0.432633
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
