The leaching kinetics of cadmium from hazardous Cu-Cd zinc plant residues
Li, Meng1,2,3; Zheng, Shili2; Liu, Biao2; Du, Hao2,4; Dreisinger, David Bruce3; Tafaghodi, Leili3; Zhang, Yi2
2017-07-01
发表期刊WASTE MANAGEMENT
ISSN0956-053X
卷号65页码:128-138
摘要A large amount of Cu-Cd zinc plant residues (CZPR) are produced from the hydrometallurgical zinc plant operations. Since these residues contain substantial amount of heavy metals including Cd, Zn and Cu, therefore, they are considered as hazardous wastes. In order to realize decontamination treatment and efficient extraction of the valuable metals from the CZPR, a comprehensive recovery process using sulfuric acid as the leaching reagent and air as the oxidizing reagent has been proposed. The effect of temperature, sulfuric acid concentration, particle size, solid/liquid ratio and stirring speed on the cadmium extraction efficiency was investigated. The leaching kinetics of cadmium was also studied. It was concluded that the cadmium leaching process was controlled by the solid film diffusion process. Moreover, the order of the reaction rate constant versus H2SO4 concentration, particle size, solid/liquid ratio and stirring speed was calculated. The XRD and SEM-EDS analysis results showed that the main phases of the secondary sulfuric acid leaching residues were lead sulfate and calcium sulfate. (C) 2017 Elsevier Ltd. All rights reserved.
关键词Cu-cd Zinc Plant Residues (Czpr) Hazardous Wastes Sulfuric Acid Leaching Kinetics Diffusion Control
文章类型Article
WOS标题词Science & Technology ; Technology ; Life Sciences & Biomedicine
DOI10.1016/j.wasman.2017.03.039
收录类别SCI
语种英语
关键词[WOS]ACID-MEDIUM ; DISSOLUTION ; RECOVERY ; MODEL
WOS研究方向Engineering ; Environmental Sciences & Ecology
WOS类目Engineering, Environmental ; Environmental Sciences
项目资助者National Natural Science Foundation of China(51404227 ; Science and Technology Service Network Initiative for the Chinese Academy of Sciences(KFJ-SW-STS-148) ; National Basic Research Program of China (973 Program)(2013CB632605) ; China Scholarship Council (CSC)(201506080059) ; 51604254 ; 91634111)
WOS记录号WOS:000404490000014
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/22803
专题湿法冶金清洁生产技术国家工程实验室
作者单位1.Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
3.Univ British Columbia, Dept Mat Engn, Vancouver, BC V6T 1Z4, Canada
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Li, Meng,Zheng, Shili,Liu, Biao,et al. The leaching kinetics of cadmium from hazardous Cu-Cd zinc plant residues[J]. WASTE MANAGEMENT,2017,65:128-138.
APA Li, Meng.,Zheng, Shili.,Liu, Biao.,Du, Hao.,Dreisinger, David Bruce.,...&Zhang, Yi.(2017).The leaching kinetics of cadmium from hazardous Cu-Cd zinc plant residues.WASTE MANAGEMENT,65,128-138.
MLA Li, Meng,et al."The leaching kinetics of cadmium from hazardous Cu-Cd zinc plant residues".WASTE MANAGEMENT 65(2017):128-138.
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