Environmental damage caused by coal combustion residue disposal: A critical review of risk assessment methodologies

M Petrović, Ž Fiket - Chemosphere, 2022 - Elsevier
Coal combustion generates almost 40% of world's electricity. However, it also produces 1.1
billion tons of coal combustion residues (CCR) annually, half of which end up in landfills …

Processing of coal gasification fine slag by different physical separation methods: Fate of typical heavy metals and comparison analysis on products

Y Guo, H Li, G Qiu, Y Li, Y Niu, J Xu, W Jia… - Separation and …, 2023 - Elsevier
The separation of carbon-mineral components in coal gasification fine slag (CGFS) is an
important prerequisite for achieving large-scale utilization of the CGFS resources. This study …

The migration and mineral host changes of lithium during coal combustion: Experimental and thermodynamic calculation study

F Xu, S Qin, S Li, H Wen, D Lv, Q Wang… - International Journal of …, 2023 - Elsevier
The recovery of lithium (Li) from coal ash has gained growing attention as a promising Li
resource. Compared with extensive studies on the modes of occurrence of Li in coal and …

High-efficiency extraction of aluminum and lithium from coal fly ash using a novel sodium pyrosulfate mechanochemical activation-Sodium persulfate pressure …

H Fang, C Zhou, S Xu, J Shi, Y Hu, G Liu - Journal of Cleaner Production, 2023 - Elsevier
A novel method of high-efficiency extraction of aluminum (Al) and lithium (Li) from coal fly
ash (CFA) is proposed. The mixture of CFA and sodium pyrosulfate (Na 2 S 2 O 7) was …

Efficient separation and comprehensive extraction of aluminum, silicon, and iron from coal fly ash by a cascade extraction method

X Zhao, L Zeng, J Guo, Q Zhu, Z Huang, L Lin… - Journal of Cleaner …, 2023 - Elsevier
A cascade extraction method was constructed by combining alkali desilication with
carbonation and acid leaching to achieve efficient separation and comprehensive recovery …

Sustainable application of coal fly ash: One-step hydrothermal cleaner production of silicon-potassium mineral fertilizer synergistic alumina extraction

X Chao, T Zhang, G Lv, Q Zhao, F Cheng… - Journal of Cleaner …, 2023 - Elsevier
Coal fly ash (CFA) is the main solid waste discharged from coal-fired power plants, a new
method for preparing silicon-potassium mineral fertilizer using KOH hydrothermal treatment …

High recovery of lithium from coal residue by roasting and sulfuric acid leaching

Y Xie, C Ni, Z Han, H Zhong, Z He, W Sun - Minerals Engineering, 2023 - Elsevier
As the price and demand for lithium metal continue to rise, super-enriched lithium coal is
expected to become a new resource to obtain lithium, but there are little research studies on …

A clean method for gallium recovery and the coproduction of silica-potassium compound fertilizer and zeolite F from brown corundum fly ash

G Wang, C Chen, J Li, F Yang, L Wang, X Lin… - Journal of Hazardous …, 2024 - Elsevier
Brown corundum fly ash (BCFA) is a solid waste from the brown corundum smelting process
that contains abundant Ga, K, Si, and Al, but effectively extracting Ga can be challenging …

Simultaneous and clean separation of titanium, iron, and alumina from coal fly ash in one spot: electrolysis-hydrolysis method

Y Shi, K Jiang, T Zhang, X Zhu - Separation and Purification Technology, 2022 - Elsevier
Large amounts of heavy-metal-containing coal fly ash can cause serious environmental
hazards. The separation and extraction of titanium, iron, and alumina from coal fly ash can …

[HTML][HTML] A mini review on the separation of Al, Fe and Ti elements from coal fly ash leachate

Y Shi, F Jiang, R Wang, S Yang, X Zhu… - International Journal of …, 2024 - Springer
The electricity demand is increasing rapidly with the development of society and technology.
Coal-fired thermal power plants have become one of the primary sources of electricity …