Carbon Material with High Specific Surface Area Improves Complex Copper Ores’ Bioleaching Efficiency by Mixed Moderate Thermophiles
Abstract
:1. Introduction
2. Materials and Methods
2.1. Complex Copper Ores and Carbon Materials
2.2. Preparation of the Mixed Moderate Thermophiles
2.3. Bioleaching Experiments and Scanning Electron Microscope (SEM) Analysis
2.4. Physicochemical Analysis
2.5. Microbial Community Dynamic Analysis
2.5.1. Total Genomic DNA Extraction
2.5.2. Polymerase Chain Reaction (PCR) Amplification and Sequence Analysis
3. Results and Discussion
3.1. Effect of Carbon Materials with Different Specific Surface Area (SSA) on Copper Extractions
3.2. Effect of Carbon Materials with Different SSA on Leaching Parameters
3.3. Adsorption Behaviors of Bioleaching Microbes onto Complex Copper Ores and Carbon Materials
3.4. The Copper Phase Analysis of Bioleached Residues
3.5. Microbial Community Dynamics Analysis
3.6. A Model for the Effects of Activated Carbon with High SSA on Complex Copper Ores Bioleaching
4. Conclusions
Author Contributions
Acknowledgments
Conflicts of Interest
References
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Carbon Materials | Specific Surface Area (m2/g) | Eelectrical Conductivity (S/m) | pH | S (%) | Fe (%) |
---|---|---|---|---|---|
Graphite (C2) | 2 | 0.6 | 5.2 | 0.9 | 0.9 |
Activated carbon I (C400) | 400 | 0.1 | 6.2 | 0.4 | 0.8 |
Activated carbon II (C800) | 800 | 0.1 | 6.9 | 0.5 | 0.3 |
Activated carbon III (C1200) | 1200 | 0.1 | 5.9 | 0.2 | 0.3 |
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Hao, X.; Liu, X.; Zhu, P.; Chen, A.; Liu, H.; Yin, H.; Qiu, G.; Liang, Y. Carbon Material with High Specific Surface Area Improves Complex Copper Ores’ Bioleaching Efficiency by Mixed Moderate Thermophiles. Minerals 2018, 8, 301. https://doi.org/10.3390/min8070301
Hao X, Liu X, Zhu P, Chen A, Liu H, Yin H, Qiu G, Liang Y. Carbon Material with High Specific Surface Area Improves Complex Copper Ores’ Bioleaching Efficiency by Mixed Moderate Thermophiles. Minerals. 2018; 8(7):301. https://doi.org/10.3390/min8070301
Chicago/Turabian StyleHao, Xiaodong, Xueduan Liu, Ping Zhu, Aijia Chen, Hongwei Liu, Huaqun Yin, Guanzhou Qiu, and Yili Liang. 2018. "Carbon Material with High Specific Surface Area Improves Complex Copper Ores’ Bioleaching Efficiency by Mixed Moderate Thermophiles" Minerals 8, no. 7: 301. https://doi.org/10.3390/min8070301