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Green Treatment of Cyanide Tailings Using a "Filter Press BackWash-Chemical Precipitation-Gaseous Membrane Absorption" Method

文献类型：期刊论文

作者Yan, Jingmin2,3; Wang, Yanhua2,3; Tu, Yubo4; Han, Peiwei1,2; Liu, Xiang2,3; Ye, Shufeng1,2
刊名APPLIED SCIENCES-BASEL
出版日期2021-03-01
卷号11期号:5页码:16
关键词cyanide tailings harmless gaseous membrane wastewater
DOI10.3390/app11052091
英文摘要Based on a "filter press backwash-chemical precipitation-gaseous membrane absorption" process, treatment of harmless cyanide tailings was conducted using cyanide tailings from a gold smelting enterprises (Yunnan Province, China) as the research object. The effects of air-drying time, backwash water parameters, initial pH of acidification, NaHS dosage, cyanide-containing water flow rate, and gaseous membrane stages on the process were investigated. Chemical composition, X-ray diffraction, and X-ray photoelectron spectroscopy analyses of the copper products were carried out. Results showed that the copper content in the copper product was 54.56%, and the chemical composition was mainly CuSCN, CuS, Cu2S, and CaSO4. Five cycles of experiments were carried out under optimal conditions; the results showed that the process can make the treated cyanide tailings meet the requirements of the technical specification for pollution control of cyanide leaching residue in the gold industry (TSPC) standard for storage in a tailings pond and a have certain stability. The average recovery rate of copper and total cyanide in elution water was 97.8% and 99.89%, respectively, and the average removal rate of thiocyanate was 94.09%.
资助项目Chinese Academy of Science Project[KFJ-STS-QYZD-044] ; National Key R&D Program during the 13th Five-year Plan Period[2019YFC1908405]
WOS研究方向Chemistry ; Engineering ; Materials Science ; Physics
语种英语
出版者MDPI
WOS记录号WOS:000627952100001
资助机构Chinese Academy of Science Project ; National Key R&D Program during the 13th Five-year Plan Period
源URL[http://ir.ipe.ac.cn/handle/122111/48089]  
专题中国科学院过程工程研究所
通讯作者Ye, Shufeng
作者单位1.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China
4.Beijing Bldg Mat Acad Sci Res, State Key Lab Solid Waste Reuse Bldg Mat, Beijing 100041, Peoples R China
推荐引用方式
GB/T 7714		 Yan, Jingmin,Wang, Yanhua,Tu, Yubo,et al. Green Treatment of Cyanide Tailings Using a "Filter Press BackWash-Chemical Precipitation-Gaseous Membrane Absorption" Method[J]. APPLIED SCIENCES-BASEL,2021,11(5):16.
APA Yan, Jingmin,Wang, Yanhua,Tu, Yubo,Han, Peiwei,Liu, Xiang,&Ye, Shufeng.(2021).Green Treatment of Cyanide Tailings Using a "Filter Press BackWash-Chemical Precipitation-Gaseous Membrane Absorption" Method.APPLIED SCIENCES-BASEL,11(5),16.
MLA Yan, Jingmin,et al."Green Treatment of Cyanide Tailings Using a "Filter Press BackWash-Chemical Precipitation-Gaseous Membrane Absorption" Method".APPLIED SCIENCES-BASEL 11.5(2021):16.

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来源：过程工程研究所

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