Moderate permeability enhanced microbial community turnover and copper extraction during bioleaching of low-grade copper ores
文献类型：期刊论文
| 作者 | Liu, Wenxian2,3; Sun, Jianxing2,3; Ai, Chenbing4,5; Zhang, Ruiyong1; Cheng, Haina2,3; Chen, Zhu2,3; Zhou, Hongbo2,3; Wang, Yuguang2,3 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2024-12-01 |
| 卷号 | 954页码:10 |
| 关键词 | Bioleaching Low-grade copper ores Microbial community Permeability |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2024.176563 |
| 通讯作者 | Wang, Yuguang(ygwang@csu.edu.cn) |
| 英文摘要 | Heap bioleaching is one of the most promising technologies for extracting valuable metals from low-grade ores. However, the effects of permeability of the heap on microbial community and bioleaching efficiency remain unclear. In this study, heap bioleaching systems with different permeability were constructed. Despite the high content of larger particles had better permeability (0.25 cm/s) and oxygen transfer efficiency (0.14), there was a 25 % decrease in copper extraction compared with the moderate permeability group (81.2 %), while low permeability (0.025 cm/s) could cut the extraction in half (48.5 %). The fine profiles of microbial communities based on relatively and absolutely quantitative technologies suggested that permeability significantly affected microbial diversity, biomass, and composition. Microbial community evenness was crucial to improving extraction than biomass. Additionally, Thermoplasmatales except for Acidiplasma and Ferroplasma played vital roles in bioleaching. This study highlighted the delicate trade-off of particle size-mediated permeability for intensifying bioleaching efficiency of low-grade copper ores. |
| WOS关键词 | HEAP CONSTRUCTION METHODS ; CHALCOPYRITE CONCENTRATE ; FLOTATION TAILINGS ; METAL EXTRACTION ; SULFUR OXIDATION ; PARTICLE-SIZE ; SULFIDE ORE ; TEMPERATURE ; PH ; RESPONSES |
| 资助项目 | National Natural Sci-ence Foundation of China[42073079] ; Natural Science Foundation of Hunan, China[2021JJ30843] ; Foundation of National Key Laboratory of Human Factors Engineering[HFNKL2023J12] ; Foundation of National Key Laboratory of Human Factors Engineering[GJSD22008] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001331093200001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/199297]  |
| 专题 | 中国科学院海洋研究所 |
| 通讯作者 | Wang, Yuguang |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Shandong, Peoples R China 2.Cent South Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Hunan, Peoples R China 3.Cent South Univ, Key Lab Biomet, Minist Educ, Changsha 410083, Hunan, Peoples R China 4.Guangxi Normal Univ, Coll Life Sci, Guilin 541004, Guangxi, Peoples R China 5.Guangxi Normal Univ, Key Lab Ecol Rare & Endangered Species & Environm, Minist Educ, Guilin 541004, Guangxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Wenxian,Sun, Jianxing,Ai, Chenbing,et al. Moderate permeability enhanced microbial community turnover and copper extraction during bioleaching of low-grade copper ores[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2024,954:10. |
| APA | Liu, Wenxian.,Sun, Jianxing.,Ai, Chenbing.,Zhang, Ruiyong.,Cheng, Haina.,...&Wang, Yuguang.(2024).Moderate permeability enhanced microbial community turnover and copper extraction during bioleaching of low-grade copper ores.SCIENCE OF THE TOTAL ENVIRONMENT,954,10. |
| MLA | Liu, Wenxian,et al."Moderate permeability enhanced microbial community turnover and copper extraction during bioleaching of low-grade copper ores".SCIENCE OF THE TOTAL ENVIRONMENT 954(2024):10. |
入库方式： OAI收割
来源：海洋研究所
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