中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 海洋研究所
  3. 中国科学院海洋研究所
  4. 海洋腐蚀与防护研究发展中心
Characterization of Bacterial Communities from an Artsvanik Active Tailing Dump and Evaluation of their Potential to Improve Copper Recovery from Flotation Copper Concentrate

文献类型：期刊论文

作者Khachatryan, Anna3; Vardanyan, Narine3; Melkonyan, Zaruhi3; Zhang, Yimeng1; Wang, Can1; Zhang, Ruiyong1,2; Vardanyan, Arevik3
刊名GEOMICROBIOLOGY JOURNAL
出版日期2025-08-01
页码16
关键词Tailing dump indigenous microbial consortium flotation concentrate chalcocite bioleaching of copper
ISSN号0149-0451
DOI10.1080/01490451.2025.2539507
通讯作者Vardanyan, Narine(nvard@sci.am)
英文摘要This study explores the biohydrometallurgical extraction of copper from a chalcocite-rich sulfidic flotation concentrate produced in Armenia, using an indigenous microbial consortium (ArM1) isolated from the Artsvanik active tailing dump. Chalcocite, the secondary copper sulfide with the highest copper content, is of strategic importance for efficient copper recovery. Bioleaching experiments demonstrated that reducing particle size from 120 mu m to <45 m significantly enhanced copper dissolution, achieving near-complete recovery within 9-12 d. The impact of pH, pulp density (PD), as well as exogenous Fe (II) on leaching efficiency was evaluated. Both biotic and abiotic Fe (III) were employed in indirect bioleaching assays. Mineralogical characterization of the feed material and post-leaching residues provided insight into the mechanisms of copper dissolution. This is the first study based on molecular biological analysis to assess microbial communities from an active tailing dump in Armenia and their potential for copper bioleaching. The findings highlight the combined importance of particle size, pH, PD optimization, and indigenous native and adapted microbial consortia in enhancing copper recovery, offering a sustainable and region-specific approach to processing refractory copper concentrate and low-grade sulfide ores.
WOS关键词SULFIDE ORE ; STIRRED-TANK ; COLUMN ; LEPTOSPIRILLUM ; CHALCOPYRITE ; BIOOXIDATION ; FERROOXIDANS ; MINERALS ; PYRITE ; IRON
资助项目Higher Education and Science Committee of the Ministry of Science, Education, Culture, and Sports of the Republic of Armenia[22rl-031] ; Young Scientist Support Program Research project[23-YSIP-012]
WOS研究方向Environmental Sciences & Ecology ; Geology
语种英语
WOS记录号WOS:001543453200001
出版者TAYLOR & FRANCIS INC
源URL[http://ir.qdio.ac.cn/handle/337002/202803]  
专题海洋研究所_海洋腐蚀与防护研究发展中心
通讯作者Vardanyan, Narine
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao, Peoples R China
2.Guangxi Acad Sci, Inst Marine Corros Protect, Guangxi Key Lab Marine Environm Sci, Nanning, Peoples R China
3.Natl Acad Sci Armenia, Dept Microbiol, SPC Armbiotechnol, 14 Gyurjyan Str, Yerevan 0056, Armenia
推荐引用方式
GB/T 7714		 Khachatryan, Anna,Vardanyan, Narine,Melkonyan, Zaruhi,et al. Characterization of Bacterial Communities from an Artsvanik Active Tailing Dump and Evaluation of their Potential to Improve Copper Recovery from Flotation Copper Concentrate[J]. GEOMICROBIOLOGY JOURNAL,2025:16.
APA Khachatryan, Anna.,Vardanyan, Narine.,Melkonyan, Zaruhi.,Zhang, Yimeng.,Wang, Can.,...&Vardanyan, Arevik.(2025).Characterization of Bacterial Communities from an Artsvanik Active Tailing Dump and Evaluation of their Potential to Improve Copper Recovery from Flotation Copper Concentrate.GEOMICROBIOLOGY JOURNAL,16.
MLA Khachatryan, Anna,et al."Characterization of Bacterial Communities from an Artsvanik Active Tailing Dump and Evaluation of their Potential to Improve Copper Recovery from Flotation Copper Concentrate".GEOMICROBIOLOGY JOURNAL (2025):16.

入库方式： OAI收割

来源：海洋研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。