Feasibility Analysis of Bacterial-Treated Coal Gangue for Soil Improvement: Growth-Promoting Effects of Alfalfa

Minerals, Год журнала: 2024, Номер 14(7), С. 676 - 676

Опубликована: Июнь 28, 2024

The long-term storage of coal gangue (CG) mountains causes serious environmental problems such as water and air pollution. Thus, sustainable reclamation practices are urgently needed to minimize the impacts brought by CG mountains. Pikovskaya medium was employed screen microorganisms, which were subsequently utilized promote solubilization CG. XRF, SEM, XRD, HPLC techniques characterize before after bacterial treatment. In this study, we have successfully isolated purified a strain, identified Stenotrophomonas bentonitica BII-R7, possesses ability facilitate nutrient elements from Factors including initial inoculation ratio, incubation time, particle size, concentration, pH, temperature examined investigate their effects on biosolubilization Furthermore, mechanism underlying also probed. Our data demonstrated that low-molecular-weight organic acids, acetic acid formic acid, may harbor crucial role in promoting Lastly, found conjugation with CG, can increase alfalfa seed germination percentage growth alfalfa. Together, these provide evidence bacterial-treated be for soil improvement land reclamation.

Язык: Английский

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Coal and Coal By-Products as Unconventional Lithium Sources: A Review of Occurrence Modes and Hydrometallurgical Strategies for Metal Recovery

Minerals, Год журнала: 2024, Номер 14(8), С. 849 - 849

Опубликована: Авг. 22, 2024

Lithium, a critical material for the global development of green energy sources, is anomalously enriched in some coal deposits and by-products to levels that may be considered economically viable. Recovering lithium from coal, particularly gangue or ashes, offers promising alternative extracting this element. This process could potentially lead economic gains positive environmental impacts by more efficiently utilizing coal-based waste materials. review focuses on concentrations by-products, modes occurrence, methods used identify lithium-enriched phases, currently available hydrometallurgical recovery methods, correlated with pretreatment procedures enable release inert aluminosilicate minerals. Leaching raw appears inefficient, whereas fly ash are feasible due their simpler composition higher contents. Lithium extraction can achieve rates over 90%, but low high impurity leachates require advanced selective separation techniques. Bottom has not yet been evaluated recovery, despite its content compared feed coal.

Язык: Английский

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Mechanism study on the generation of oxygen vacancies by ball milling surface modification of siliceous minerals in coal gangue to enhance reactivity

Applied Surface Science, Год журнала: 2024, Номер 686, С. 162189 - 162189

Опубликована: Дек. 24, 2024

Язык: Английский

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Coal-bearing kaolinite-based plant growth-promoting fertilizer with integrated slow-release and water-retention properties

The Science of The Total Environment, Год журнала: 2025, Номер 959, С. 178235 - 178235

Опубликована: Янв. 1, 2025

Язык: Английский

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Convert Iron Tailings Waste into a Novel Mg-Fe-Al Hybrid Magnetic Coagulant for Enhanced Pretreatment of Swine Wastewater

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 115546 - 115546

Опубликована: Янв. 1, 2025

Язык: Английский

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An overview of the coal circularity in Brazil: A new sustainable approach based on sampling method, characterization, and waste valorization

Resources Policy, Год журнала: 2025, Номер 102, С. 105496 - 105496

Опубликована: Фев. 3, 2025

Язык: Английский

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Eco-friendly utilization and microbiological characteristics of coal gangue substrate via functional microbial fermentation

Environmental Research, Год журнала: 2025, Номер 271, С. 121035 - 121035

Опубликована: Фев. 4, 2025

Язык: Английский

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Outer space migration, soil first: Preparation of soil like matrix by co-pyrolysis of coal gangue and biomass

Industrial Crops and Products, Год журнала: 2025, Номер 226, С. 120733 - 120733

Опубликована: Фев. 18, 2025

Язык: Английский

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Research on innovative PVC-steel wire mesh composite confined spontaneous combustion coal gangue concrete: Experiment and finite element analysis

Structures, Год журнала: 2025, Номер 74, С. 108603 - 108603

Опубликована: Март 8, 2025

Язык: Английский

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Pedogenesis of Coal Gangue Heaps in High-altitude Plateau Areas driven by the In-situ Formation of Layered Double Hydroxides

Environmental Technology & Innovation, Год журнала: 2025, Номер unknown, С. 104145 - 104145

Опубликована: Март 1, 2025

Язык: Английский

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