Results 21 to 30 of about 6,655 (164)

Advances in bioleaching of waste lithium batteries under metal ion stress

Bioresources and Bioprocessing, 2023
In modern societies, the accumulation of vast amounts of waste Li-ion batteries (WLIBs) is a grave concern. Bioleaching has great potential for the economic recovery of valuable metals from various electronic wastes.
Xu Zhang, Hongjie Shi, Ningjie Tan, Minglong Zhu, Wensong Tan, Damilola Daramola, Tingyue Gu   +6 more
doaj   +1 more source

Interrelationship of hydrology, microbial colonisation and hydrometallurgy in a simulated chalcopyrite heap leach [PDF]

, 2008
Includes bibliographical references (leaves 104-115).Chalcopyrite is the most abundant primary copper sulphide mineral found worldwide. As copper grades of ores available for extraction decrease, heap bioleaching is gaining interest as a potential ...
Spurr, Nicholas Robert Louis
core   +1 more source

Bioleaching of Chalcopyrite-bornite and Chalcopyrite-pyrite Mixed Ores in The Presence of Moderately Thermophilic Microorganisms

International Journal of Electrochemical Science, 2017
In this work, bioleaching of chalcopyrite-pyrite and chalcopyrite-bornite mixed ores in the presence of moderately thermophilic microorganisms (A.caldus, L.ferriphilum and mixed culture) were carried out.
Yulin Huang, Yisheng Zhang, Hongbo Zhao, Yanjun Zhang, Yuming Xiong, Luyuan Zhang, Jun Zhou, Jun Wang, Wenqing Qin, Guanzhou Qiu   +9 more
doaj   +1 more source

A Comparative Study on Bioleaching Properties of Various Sulfide Minerals Using Acidiphilium cryptum

Applied Sciences, 2023
Bioleaching has been regarded as a green alternative to chemical leaching in metal extraction processes. In this study, the bioleaching properties of indigenous acidophilic bacteria for various sulfide minerals were compared and evaluated in terms of pH ...
Kang-Hee Cho, Hyun-Soo Kim, Chang-Gu Lee, Seong-Jik Park, Nag-Choul Choi   +4 more
doaj   +1 more source

Removal behavior and chemical speciation distributions of heavy metals in sewage sludge during bioleaching and combined bioleaching/Fenton-like processes

Scientific Reports, 2021
The removal and chemical speciation changes of heavy metals in the sewage sludge during the single bioleaching and combined bioleaching/Fenton-like processes were compared in this study.
Chunsheng Qiu, Shangyu Xie, Nannan Liu, Kequan Meng, Chenchen Wang, Dong Wang, Shaopo Wang   +6 more
doaj   +1 more source

The effect of carbon dioxide on the growth and activity of leptospirillum ferriphilum [PDF]

, 2010
Includes bibliographical references (leaves 81-87).Microbial oxidation rates catalysed by the acidophilic micro-organisms mediating mesophilic and thermophilic bioleaching of mineral sulphides have been well characterised under conditions typical of ...
Naik, Linus
core   +1 more source

Effect of amount of inoculum on the bioleaching of heavy metals from sewage sludge

浙江大学学报. 农业与生命科学版, 2005
Four different amounts of inoculum in mixed sludge, namely 2%, 5%, 10% and 20%, were adopted to investigate the bioleaching of heavy metals from sludge by batch experiment.
HUA Yu-mei, LI Wen-hong, CHEN Ying-xu, TIAN Guang-ming   +3 more
doaj   +1 more source

Genome mining to unravel potential metabolic pathways linked to gallium bioleaching ability of bacterial mine isolates

Frontiers in Microbiology, 2022
Gallium (Ga) is considered a high-tech Critical Metal, used in the manufacture of several microelectronic components containing either gallium arsenide (GaAs) or gallium nitride (GaN). The current high demand for this critical metal urges the development
Ana Paula Chung, Romeu Francisco, Paula V. Morais, Rita Branco   +3 more
doaj   +1 more source

Insight into the promotion mechanism of humic acid on arsenopyrite bioleaching mediated by Acidithiobacillus ferrooxidans

Results in Engineering
Arsenopyrite is an important gold-bearing sulfide mineral, and pretreatment is essential before gold extraction to maximize gold recovery. Bioleaching, with its advantages of simple operation and environmental friendliness, has received widespread ...
Baojun Yang, Xin Zhang, Yuling Liu, Xin Sun, Yang Liu, Jun Wang, Shitong Liu, Rui Liao, Guanzhou Qiu   +8 more
doaj   +1 more source

IRON REMOVAL FROM LADEN BIOLEACHING SOLUTION BY PROCESSES OF SOLVENT EXTRACTION AND MAGNETITE SYNTHESIS [PDF]

, 2023
Laden leach solution, generated from bioleaching of pyrometallurgical copper slags with a mixed culture of moderately thermophilic bacteria in a bioreactor, contains several base metals (Cu, Co, Zn) and a very high concentration of iron (33,9 g/ L ...
Stoyan Groudev, Plamen Georgiev, Marina Nicolova, Irena Spasova   +3 more
core   +2 more sources