Results 31 to 40 of about 2,038 (178)

Sulfide mineral dissolution microbes: Community structure and function in industrial bioleaching heaps

Green Energy & Environment, 2019
Heap bioleaching is one of the most clean and economical processes for recovery of low-grade and complex ores, because the sulfide minerals are natural habitats for acidophiles capable of iron- and sulfur-oxidation.
Yan Jia, Qiaoyi Tan, Heyun Sun, Yupeng Zhang, Hongshan Gao, Renman Ruan   +5 more
doaj   +1 more source

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

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

Bioleaching of Heavy Metals from Municipal Solid Waste Incineration Fly Ash: Availability of Recoverable Sulfur Prills and Form Transformation of Heavy Metals

Metals, 2020
Bioleaching is an effective and promising approach for the recovery or removal of heavy metals from metal-laden municipal solid waste incineration fly ash. To exclude the risk of reacidification of the leached fly ash after bioleaching with sulfur powder,
Ruichang Zhang, Xuefeng Wei, Qiang Hao, Ruofan Si   +3 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

Hydrodynamic Study Of Column Bioleaching Processes

Nova Biotechnologica et Chimica, 2015
The modelling of flow leaching solution through the porous media has been considered. The heap bioleaching process can be tested using the column experimental equipment.
Sadowski Zygmunt, Baranska Joanna A.
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

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

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

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