Results 31 to 40 of about 12,109 (248)

Bioleaching of Rare Earth Elements: Perspectives from Mineral Characteristics and Microbial Species

Minerals, 2023
Bioleaching exhibits high potential for the processing of low-grade complex mineral resources. With the development of the economy and an increase in demand, rare earth elements (REEs) in secondary resources, such as phosphogypsum, red mud and coal ...
Shulan Shi, Jinhe Pan, Bin Dong, Weiguang Zhou, Changchun Zhou   +4 more
semanticscholar   +1 more source

Accessing Metals from Low-Grade Ores and the Environmental Impact Considerations: A Review of the Perspectives of Conventional versus Bioleaching Strategies

Minerals, 2022
Mining has advanced primarily through the use of two strategies: pyrometallurgy and hydrometallurgy. Both have been used successfully to extract valuable metals from ore deposits. These strategies, without a doubt, harm the environment.
Rosina Nkuna, G. Ijoma, T. Matambo, Ngonidzashe Chimwani   +3 more
semanticscholar   +1 more source

Bioleaching of heavy metals from pig manure with indigenous sulfur-oxidizing bacteria: effects of sulfur concentration

Heliyon, 2018
The purpose of this work was to study the sulfur concentration on bioleaching of heavy metals from pig manure employing indigenous sulfur-oxidizing bacteria.
Xiaocheng Wei, Dongfang Liu, Lirui Liao, Zhendong Wang, Wenjiao Li, Wenli Huang   +5 more
doaj   +1 more source

BIOLOGICAL LEACHING OF NON-FERROUS METALS FROM COPPER SLAG USING A STRAIN OF SILICATE-SOLUBILISING BACTERIA [PDF]

Sustainable Extraction and Processing of Raw Materials Journal
. This study aims at the recovery of non-ferrous metals from pyrometallurgy copper slag enriched in diopside, fayalite, and protomangano-ferro-anthophyllite and containing 0.36 % copper, 1.93 % zinc, and 0.09 % cobalt by bioleaching with silicate ...
Plamen Georgiev, Marina Nicolova, Irena Spasova   +2 more
doaj   +1 more source

Bioleaching of incineration fly ash by Aspergillus niger – precipitation of metallic salt crystals and morphological alteration of the fungus

Biotechnology Reports, 2014
This study examines the bioleaching of municipal solid waste incineration fly ash by Aspergillus niger, and its effect on the fungal morphology, the fate of the ash particles, and the precipitation of metallic salt crystals during bioleaching. The fungal
Tong-Jiang Xu, Thulasya Ramanathan, Yen-Peng Ting   +2 more
doaj   +1 more source

Unveiling the Bioleaching Versatility of Acidithiobacillus ferrooxidans. [PDF]

Microorganisms
Acidithiobacillus ferrooxidans is a Gram-negative bacterium that thrives in extreme acidic conditions. It has emerged as a key player in biomining and bioleaching technologies thanks to its unique ability to mobilize a wide spectrum of elements, such as ...
Tonietti L, Esposito M, Cascone M, Barosa B, Fiscale S, Muscari Tomajoli MT, Sbaffi T, Santomartino R, Covone G, Cordone A, Rotundi A, Giovannelli D.   +11 more
europepmc   +2 more sources

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

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

Bioleaching with ultrasound

Ultrasonics Sonochemistry, 2005
Application of bioleaching of metals in a large-scale operation is reviewed briefly. Continued technical innovation is vital for the wider utilisation of this extraction process within the mineral industries. Therefore, the use of power ultrasound in combination with bioleaching (referred to as sonobioleaching) has been studied and is shown to be ...
K M, Swamy, K L, Narayana, Vibhuti N, Misra   +2 more
openaire   +2 more sources

A review on the bioleaching of toxic metal(loid)s from contaminated soil: Insight into the mechanism of action and the role of influencing factors

Frontiers in Microbiology, 2022
The anthropogenic activities in agriculture, industrialization, mining, and metallurgy combined with the natural weathering of rocks, have led to severe contamination of soils by toxic metal(loid)s.
Emmanuel Konadu Sarkodie, Luhua Jiang, Kewei Li, Jiejie Yang, Ziwen Guo, Jiaxin Shi, Yan Deng, Hongwei Liu, Huidan Jiang, Yili Liang, Huaqun Yin, Xue-duan Liu   +11 more
semanticscholar   +1 more source