Bioleaching of uranium from ores and rocks using filamentous fungi DOI Creative Commons
Tariq M. Bhatti, Olli H. Tuovinen

Frontiers in Microbiology, Journal Year: 2025, Volume and Issue: 16

Published: April 30, 2025

The purpose of this article is to review the role filamentous fungi in leaching uranium from ores and rocks. Fungi produce short-chain fatty acids through fermentation partial oxidation organic compounds. Biomass can be separated culture, while spent media dissolve sequester minerals Oxide, carbonate, silicate containing hexavalent are suitable for treatment. maximize production acids. Uranium dissolution sequestration attributed mostly formation soluble U(VI)-carboxylate complexes with citric oxalic acids, although other carboxylic also uranium. leach solutions maintain a pH level between 1.5 3.5, as low facilitates proton attack on minimizes precipitation metals solution. Two types processes using have been tested: one-step leaching, where biomass not before contact mineral, two-step which employs medium after removal fungal biomass. Process optimization pilot stage has yet reported literature. To date, first bioleaching

Language: Английский

Discarded e-waste/printed circuit boards: a review of their recent methods of disassembly, sorting and environmental implications DOI Creative Commons
Emmanuel A. Oke, J.H. Potgieter

Journal of Material Cycles and Waste Management, Journal Year: 2024, Volume and Issue: 26(3), P. 1277 - 1293

Published: March 2, 2024

Abstract The improper disposal of discarded electronic and electrical equipment raises environmental health concerns, spanning air pollution to water soil contamination, underscoring the imperative for responsible management practises. This review explores complex composition printed circuit boards (DPCBs), crucial components in devices. Comprising substrates, elements solder, DPCBs showcase a heterogeneous structure with metal (30.0–50.0%) non-metal (50.0–70.0%) fractions. Notably abundant precious metals such as Au, Ag, Pd, offer compelling avenue recycling initiatives. inclusion heavy flame retardants adds complexity, necessitating environmentally sound methods. Ongoing research on smart disassembly, utilising 3D image recognition technology, underscores importance accurate identification positioning (ECs). targeted approach centred valuable components, highlights its significance, albeit challenges costs capacity limitations. In mechanical techniques grinding heat application are employed extract ECs, innovations addressing gas emissions damage induced by overheating. Chemical disassembly methods, encompassing epoxy resin delamination tin removal, present promising recovery options, whilst integration chemical electrochemical processes shows potential. Efficient sorting, both manual automated is post-disassembly, sorting technologies augmenting accuracy categorisation ECs. addition, explorations into NH 3 /NH 4 + solutions selective underscore stress necessity meticulous process optimisation sustainable PCB recycling. Challenges future perspectives have also been expounded.

Language: Английский

Citations

18
Biomining for sustainable recovery of rare earth elements from mining waste: A comprehensive review DOI
Hoang Nhat Phong Vo,

Soroosh Danaee,

Ho Truong Nam Hai

et al.

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 908, P. 168210 - 168210

Published: Nov. 2, 2023

Language: Английский

Citations

31
Scientists’ call to action: Microbes, planetary health, and the Sustainable Development Goals DOI Creative Commons
Thomas W. Crowther, Rino Rappuoli, Cinzia Corinaldesi

et al.

Cell, Journal Year: 2024, Volume and Issue: 187(19), P. 5195 - 5216

Published: Sept. 1, 2024

Language: Английский

Citations

15
Metal recovery from industrial solid waste by ultrasonic-assisted hydrometallurgical leaching: a review DOI
Jianfeng Ran, Yun Li, Xuxu Wang

et al.

Environmental Chemistry Letters, Journal Year: 2024, Volume and Issue: 22(4), P. 2055 - 2090

Published: May 6, 2024

Language: Английский

Citations

12
A review of bioleaching combined with low-cost fermentation and metabolic engineering technology to leach rare earth elements DOI

Li Shen,

Hao Zhou,

Guanzhou Qiu

et al.

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(2), P. 112117 - 112117

Published: Feb. 15, 2024

Language: Английский

Citations

11
Critical Review of Lithium Recovery Methods: Advancements, Challenges, and Future Directions DOI Open Access

Subin Antony Jose,

Jonathan Luke Stoll,

Tyson Smith

et al.

Processes, Journal Year: 2024, Volume and Issue: 12(10), P. 2203 - 2203

Published: Oct. 10, 2024

The integration of lithium into technological applications has profoundly influenced human development, particularly in energy storage systems like lithium-ion batteries. With global demand for surging alongside advancements, the sustainable extraction and recovery this critical material have become increasingly vital. This paper explores lithium’s role, its chemical properties, environmental economic considerations associated with recovery. We examine various methods, including conventional techniques such as hydrometallurgy, pyrometallurgy, direct physical recycling, well emerging technologies mechanochemistry, ion pumping, bioleaching while emphasizing need practices to address challenges. review also discusses challenges future directions Advances technology streamlined processes spurred development innovative techniques. concludes an emphasis on further research essential deepen our understanding their strengths limitations, explore new strategies meet growing indispensable resource.

Language: Английский

Citations

11
Bioleaching for metals removal from mine tailings flotation fractions DOI Creative Commons
Tamara A. Schueler, Axel Schippers, Daniel Goldmann

et al.

Hydrometallurgy, Journal Year: 2024, Volume and Issue: 225, P. 106286 - 106286

Published: Feb. 20, 2024

This study investigated two bioleaching strategies for removing heavy metals from three mine tailings fractions generated by flotation processes. On the one hand, with microbial consortia of acidophilic mesophiles and moderate thermophiles efficiently extracted Co, Cu, Zn, As, while leaching Pb was facilitated through use organic acids produced a heterotrophic bacterium fungus. Approximately 100% 68% 63% 31% Cu were bioleached barite (BT) sample after 14 days, whereas concentrate (BC) results showed about 70% Zn 45% removal at same period. The sulfide (SC) underwent both consortia, over 28 days. Approximately, 67% 28% 56% 6% Mn using mesophiles, efficiency 72% 50% 36% 5% in 20 L bioreactors. other explored Gluconobacter oxydans fungus Penicillium simplicissimum production gluconic acid citric acid, respectively. Additionally, besides glucose-based media, glycerol crystal sugar tested as alternative cheaper carbon sources. metabolic activity P. allowed maximum 39–43% BT days glycerol-based medium, BC sample, extraction around 60% medium. A lower achieved G. samples. 34% 39% reached within 7 when glucose used source. Further optimization should address enhancement – especially reduction costs related to media formulation fungal biomass on larger scale.

Language: Английский

Citations

8
Bioleaching for the recovery of rare earth elements from industrial waste: A sustainable approach DOI Creative Commons

Khyati Joshi,

Sara Magdouli, Satinder Kaur Brar

et al.

Resources Conservation and Recycling, Journal Year: 2025, Volume and Issue: 215, P. 108129 - 108129

Published: Jan. 18, 2025

Language: Английский

Citations

1
Efficient bioleaching of Li from waste lithium–iron phosphate batteries by acidophilic bacterial consortium: Enrichment condition, Li recovery, and brief carbon footprint analysis DOI

Jinghan Gu,

Yuanyuan Nie,

Zaiyu Li

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161450 - 161450

Published: March 1, 2025

Language: Английский

Citations

1
Techno-economic assessment of bioleaching for metallurgical by-products DOI Creative Commons
Ipek Tezyapar Kara, Stuart Wagland, Frédéric Coulon

et al.

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 358, P. 120904 - 120904

Published: April 21, 2024

This study focused on the economic feasibility of two potential industrial-scale bioleaching technologies for metal recovery from specific metallurgical by-products, mainly basic oxygen steelmaking dust (BOS-D) and goethite. The investigation compared scaling technology configurations, including an aerated bioreactor stirred across different scenarios. Results indicated that using Acidithiobacillus ferrooxidans proved financially viable copper extraction goethite, particularly when 5% 10% pulp densities were used in bioreactor, density was bioreactor. Notably, a net present value (NPV) $1,275,499k internal rate return (IRR) 65% Cu goethite achieved over 20-years after project started plant with capital expenditure (CAPEX) $119,816,550 operational (OPEX) $5,896,580/year. It is expected will start to make profit one year operation. Aerated appeared more reliable alternative as consists 12 reactors which can allow better management operation small volume multiple reactors. Despite limitations, this techno-economic assessment emphasized significance selective design, underscored major expenses associated process.

Language: Английский

Citations

6