Results 41 to 50 of about 2,042 (158)

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

Electrochemical behaviour of L-cysteine on massive chalcopyrite (CuFeS2) bioleached by leptospirillum ferrooxidans

International Journal of Electrochemical Science, 2019
This study introduces a mechanism for speeding up the bioleaching process. We examine the effects and kinetics of L-cysteine on the bioleaching of chalcopyrite via Potetiodynamic polarisation, electrochemical impedance spectroscopy (EIS) and cyclic ...
Yue Liu, Hongai Zheng, Yiheng Zhou, Mengqian Wang, Jianshe Liu, Daquan Zhang, Lizhi Zhang   +6 more
doaj   +1 more source

Thermoacidophilic Bioleaching of Industrial Metallic Steel Waste Product

Frontiers in Microbiology, 2022
The continuous deposition of hazardous metalliferous wastes derived from industrial steelmaking processes will lead to space shortages while valuable raw metals are being depleted.
Denise Kölbl, Alma Memic, Holger Schnideritsch, Dominik Wohlmuth, Gerald Klösch, Mihaela Albu, Gerald Giester, Marek Bujdoš, Tetyana Milojevic   +8 more
doaj   +1 more source

Electrochemical Dissolution of Chalcopyrite Concentrates in Stirred Reactor in the Presence of Acidithiobacillus ferrooxidans

International Journal of Electrochemical Science, 2015
In this work, a new stirred reactor was designed and then a comparative study of bioleaching using stirred reactor and shake flask was carried out to investigate the bioleaching performance of the new stirred reactor.
Hongbo Zhao, Jun Wang, Wenqing Qin, Minghao Hu, Guanzhou Qiu   +4 more
doaj   +1 more source

Optimization of Lithium‐Ion Battery Circular Economy in Electric Vehicles in Sustainable Supply Chain

Battery Energy, Volume 4, Issue 2, March 2025.
Lithium batteries constitute a pivotal component in electric vehicles (EVs) owing to their rechargeability and high‐power output capabilities. ABSTRACT Lithium batteries constitute a pivotal component in electric vehicles (EVs) owing to their rechargeability and high‐power output capabilities.
Mohsen Alizadeh Afroozi, Mohammad Gramifar, Babak Hazratifar, Mohammad Mahdi Keshvari, Seyed Behnam Razavian   +4 more
wiley   +1 more source

Bacterial leaching of an Indonesian complex copper sulfide ore using an iron-oxidizing indigenous bacterium

Microbiology Indonesia, 2018
The bioleaching of an Indonesian complex copper sulfide ore was studied in shake flasks over a period of 14 days using an iron-oxidizing indigenous bacterium at room temperature (28 oC) and various pulp densities (5% and 20%). The bioleaching suspensions
doaj   +1 more source

Peroxodisulfate‐Enhanced Leaching of Deep‐Sea Manganese Crusts and Sulfides

Chemie Ingenieur Technik, EarlyView.
Ammonium peroxodisulfate enables efficient leaching of deep‐sea manganese crusts and massive sulfides while offering electrolytic recycling. High leaching yields for V, Mn, Co, Mo, Sn, and W, along with complete leaching of As and Sb, highlight its potential as a powerful and sustainable oxidant for marine resource processing.
Bastian Hansel, Lucas Thumeyer, Ebbe H. Hartz, Håvard Hallås Stubseid, Peter Fröhlich, Martin Bertau   +5 more
wiley   +1 more source

Metabolomic Analysis Reveals Contributions of Citric and Citramalic Acids to Rare Earth Bioleaching by a Paecilomyces Fungus

Frontiers in Microbiology, 2020
Conventional methods for extracting rare earth elements from monazite ore require high energy inputs and produce environmentally damaging waste streams. Bioleaching offers a potentially more environmentally friendly alternative extraction process.
Vanessa L. Brisson, Vanessa L. Brisson, Wei-Qin Zhuang, Lisa Alvarez-Cohen, Lisa Alvarez-Cohen   +4 more
doaj   +1 more source

Sustainable Revival of Spent Lithium Iron Phosphate Cathodes in Li‐Ion Batteries: Recycling and Surface Engineering Approaches

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Schematic illustration of the lifecycle of LiFePO4 cathodes. Lithiation and delithiation reactions happen through its discharging and charging processes. Recycling pathways including hydrometallurgy, pyrometallurgy, and direct regeneration enable sustainable reuse of spent LFP materials. Surface modification approaches (carbon, polymer, and metal/metal
Yan He, Ruigang Wang
wiley   +1 more source

Bioleaching of Al from spent fluid catalytic cracking catalyst using Aspergillus species

Biotechnology Reports, 2019
Bioleaching uses biodegradable organic acids, thereby making the process environmental friendly as compared to chemical leaching. In this work, bioleaching of aluminium (Al) metal from spent catalyst was investigated by using three Aspergillus strains (A.
Sutapa Das, Narendra Naik Deshavath, V.V. Goud, V. Venkata Dasu   +3 more
doaj   +1 more source