典型文献
Clean and effective removal of Cl(-I)from strongly acidic wastewater by PbO2
文献摘要：
Recycling strongly acidic wastewater as diluted H2SO4 after contaminants contained be-ing removed was previously proposed,however,Cl(-I),a kind of contaminant contained in strongly acidic wastewater,is difficult to remove,which severely degrades the quality of recycled H2SO4.In this study,the removal of Cl(-I)using PbO2 was investigated and the in-volved mechanisms were explored.The removal efficiency of Cl(-I)reached 93.38％at 50℃when PbO2/Cl(-I)mole ratio reached 2:1.The identification of reaction products shows that Cl(-I)was oxidized to Cl2,and PbO2 was reduced to PbSO4.Cl2 was absorbed by NaOH to form NaClO,which was used for the regeneration of PbO2 from the generated PbSO4.Cl(-I)was removed through two pathways,i.e.,surface oxidation and·OH radical oxidation.·OH generated by the reaction of PbO2 and OH-plays an important role in Cl(-I)removal.The re-generated PbO2 had excellent performance to remove Cl(-I)after six-time regeneration.This study provided an in-depth understanding on the effective removal of Cl(-I)by the oxidation method.
文献关键词：
中图分类号：
作者姓名：
Jinmin Zhao;Linghao Kong;Xingyun Hu;Xianjia Peng
作者机构：
State Key Laboratory of Environmental Aquatic Chemistry,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China;National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China;University of Chinese Academy of Sciences,Beijing 100049,China
文献出处：
引用格式：
[1]Jinmin Zhao;Linghao Kong;Xingyun Hu;Xianjia Peng-.Clean and effective removal of Cl(-I)from strongly acidic wastewater by PbO2)[J].环境科学学报（英文版）,2022(10):1-8
A类：
B类：
Clean,effective,removal,from,strongly,acidic,wastewater,by,PbO2,Recycling,diluted,H2SO4,after,contaminants,contained,removed,previously,proposed,however,kind,difficult,which,severely,degrades,quality,recycled,In,this,study,using,investigated,volved,mechanisms,were,explored,efficiency,reached,when,mole,identification,reaction,products,shows,that,oxidized,Cl2,reduced,PbSO4,absorbed,NaOH,NaClO,used,regeneration,generated,through,two,pathways,surface,oxidation,radical,plays,important,role,had,excellent,performance,six,This,provided,depth,understanding,method
AB值：
0.471854
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