典型文献
Enhanced Mn2+solidification and NH4+-N removal from electrolytic manganese metal residue via surfactants
文献摘要:
Electrolytic manganese metal residue(EMMR)harmless treatment has always lacked a low-cost and quick processing technology.In this study,surfactants,namely tetradecyl trimethylammonium chloride(TTC),sodium dodecyl benzene sulfonate(SDBS),sodium lignin sulfonate(SLS),and octadecyl trimethy-lammonium chloride(OTC),were used in the solidification of Mn2+and removal of NH4+-N from EMMR.The Mn2+and NH4+-N concentrations under different reaction conditions,Mn2+solidification and NH4+-N removal mechanisms,and leaching behavior were studied.The results revealed that the surfactants could enhance the Mn2+solidification and NH4+-N removal from EMMR,and the order of enhancement was as follows:TTC>SDBS>OTC>SLS.The NH4+-N and Mn2+concentrations were 12.3 and 0.05 mg·L-1 with the use of 60.0 mg·kg1 TTC under optimum conditions(solid-liquid ratio of 1.5:1,EMMR to BRM mass ratio of 100:8,temperature of 20℃,and reaction duration of 12 h),which met the integrated wastewater discharge standard(GB8978-1996).Mn2+was mainly solidified as Mn(OH)2,MnOOH and MnSiO3,and NH4+-N in EMMR was mostly removed in the form of ammonia.The results of this study could provide a new idea for cost-effective EMMR harmless treatment.
文献关键词:
中图分类号:
作者姓名:
Jiancheng Shu;Xiangfei Zeng;Danyang Sun;Yong Yang;Zuohua Liu;Mengjun Chen;Daoyong Tan
作者机构:
School of Environment and Resource,Southwest University of Science and Technology,Mianyang 621010,China;School of Chemistry and Chemical Engineering,Chongqing University,Chongqing 400044,China
文献出处:
引用格式:
[1]Jiancheng Shu;Xiangfei Zeng;Danyang Sun;Yong Yang;Zuohua Liu;Mengjun Chen;Daoyong Tan-.Enhanced Mn2+solidification and NH4+-N removal from electrolytic manganese metal residue via surfactants)[J].中国化学工程学报(英文版),2022(09):205-212
A类:
Mn2+solidification,EMMR,trimethylammonium,octadecyl,trimethy,lammonium,Mn2+concentrations
B类:
Enhanced,NH4+,removal,from,electrolytic,manganese,metal,residue,via,surfactants,Electrolytic,harmless,treatment,has,always,lacked,cost,quick,processing,technology,In,this,study,namely,tetradecyl,chloride,TTC,sodium,dodecyl,benzene,sulfonate,SDBS,lignin,SLS,OTC,were,used,Mn2+and,under,different,reaction,conditions,mechanisms,leaching,behavior,studied,results,revealed,that,could,order,enhancement,follows,kg1,optimum,liquid,BRM,mass,temperature,duration,which,integrated,wastewater,discharge,standard,GB8978,Mn2+was,mainly,solidified,MnOOH,MnSiO3,mostly,removed,form,ammonia,provide,new,idea,effective
AB值:
0.475344
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