Results 21 to 30 of about 1,776 (188)

Electrochemistry of oxidation of chalcocite in the presence and absence of microorganisms

工程科学学报, 2018
The electrochemical behavior of the chalcocite oxidation process in the presence and absence of microorganisms was investigated using electrochemical techniques, including cyclic voltammetry, anodic polarization curves, Tafel curves, and X-ray ...
LIAO Bo, WEN Jian-kang, WU Biao, SHANG He, CHEN Bo-wei   +4 more
doaj   +1 more source

The Interaction Force between Scheelite and Scheelite/Fluorite/Calcite Measured Using Atomic Force Microscopy

Journal of Chemistry, 2020
The mechanism of the formation of the hydrophobic agglomerate in fine scheelite flotation was studied using zeta potential measurement, contact angle measurement, optical microscope measurement, and atomic force microscopy (AFM) colloid probe technology.
Junyan Yang, Shen Qi, Bo Song, Qi Zheng, Xiaokui Che, Lijun Wang   +5 more
doaj   +1 more source

Shifts in the Microbial Populations of Bioleach Reactors Are Determined by Carbon Sources and Temperature

Biology, 2023
In the present study, the effect of additional carbon sources (carbon dioxide and molasses) on the bio-oxidation of a pyrite–arsenopyrite concentrate at temperatures of 40–50 °C was studied, and novel data regarding the patterns of the bio-oxidation of ...
Aleksandr Bulaev, Vitaliy Kadnikov, Yulia Elkina, Aleksey Beletsky, Vitaliy Melamud, Nikolai Ravin, Andrey Mardanov   +6 more
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PCR-mediated detection of acidophilic, bioleaching-associated bacteria [PDF]

, 1997
The detection of acidophilic microorganisms from mining environments by culture methods is time consuming and unreliable. Several PCR approaches were developed to amplify small-subunit rRNA sequences from the DNA of six bacterial phylotypes associated ...
Altschul S. F., Amaro A. M., Apel W. A., Durand P., Goebel B. M., Golovacheva R. S., Hallberg K. B., Hallberg K. B., Hallman R., Harrison A. P., Harrison A. P., Jerez C. A., Johnson D. B., Khalid A. M., Lane D. J., Maidak B. C., Markosyan G. E., Merrettig U., Moreira D., Norris P. R., Novo M. T. M., Peng J. B., Pizarro J., Sand W., Somerville C. C., Stoner D. L., Tsai Y. L.   +26 more
core   +1 more source

Microbial community and metabolic pathway succession driven by changed nutrient inputs in tailings: effects of different nutrients on tailing remediation

Scientific Reports, 2017
To solve the competition problem of acidophilic bacteria and sulfate-reducing bacteria in the practical application of mine tailing bioremediation, research into the mechanisms of using different nutrients to adjust the microbial community was conducted.
Mingjiang Zhang, Xingyu Liu, Yibin Li, Guangyuan Wang, Zining Wang, Jiankang Wen   +5 more
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Flotation separation of chalcopyrite and molybdenite by externally controlled potential method

工程科学学报, 2019
Chalcopyrite-molybdenite separation has always been a major difficulty in mineral processing. At present, chemical agents are commonly used to regulate the pulp potential.
SONG Kun, SONG Yong-sheng, ZHANG Qi-dong, LI Wen-juan, LE Guan   +4 more
doaj   +1 more source

Recycling of Lithium Batteries—A Review

Energies, 2022
With the rapid development of the electric vehicle industry in recent years, the use of lithium batteries is growing rapidly. From 2015 to 2040, the production of lithium-ion batteries for electric vehicles could reach 0.33 to 4 million tons.
Xiaowei Duan, Wenkun Zhu, Zhongkui Ruan, Min Xie, Juan Chen, Xiaohan Ren   +5 more
doaj   +1 more source

Isolation and Identification of Uranium Tolerant Phosphate-Solubilizing Bacillus spp. and Their Synergistic Strategies to U(VI) Immobilization

Frontiers in Microbiology, 2021
The remediation of uranium (U) through phosphate-solubilizing bacteria (PSB) is an emerging technique as well as an interesting phenomenon for transforming mobile U into stable minerals in the environment.
Juan Zhong, Juan Zhong, Juan Zhong, Xuewu Hu, Xuewu Hu, Xuewu Hu, Xingyu Liu, Xingyu Liu, Xinglan Cui, Xinglan Cui, Ying Lv, Ying Lv, Chuiyun Tang, Chuiyun Tang, Mingjiang Zhang, Mingjiang Zhang, Hongxia Li, Hongxia Li, Lang Qiu, Weimin Sun   +19 more
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Effect of desliming on the flotation of a complax copper ore from China

MATEC Web of Conferences, 2016
The complex copper oxide ore sample was taken from Deerni copper deposit, Qinghai Province of China. Batch flotation tests had been conducted to upgrade the copper concentrate by conventional amyl xanthate reagents under 73% -74 μm of the particle size ...
Chen Yong, Song Yong Sheng, Li Wen Juan, Zhou Gui Ying   +3 more
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Bridging the Bottlenecks in Biohydrometallurgy: Enhancing Kinetics, Resource Utilization, and Sustainability for Scalable Metal Recovery [PDF]

E3S Web of Conferences
Biohydrometallurgy provides eco-friendly alternatives for extracting metals from primary and secondary resources. However, its industrial scalability is limited due to slow bioleaching kinetics, a lack of process adaptability to complex waste, and ...
Aachhera Sugandha
doaj   +1 more source