A review of rare earth elements and yttrium in coal ash: Content, modes of occurrences, combustion behavior, and extraction methods

B Fu, JC Hower, W Zhang, G Luo, H Hu… - Progress in Energy and …, 2022 - Elsevier
Rare earth elements and yttrium (REY) have attracted considerable attention over the last
decade because of their vital roles in clean energy, consumer product, national defense and …

Opportunities, challenges and modification methods of coal gangue as a sustainable soil conditioner—a review

T Tang, Z Wang, L Chen, S Wu, Y Liu - Environmental Science and …, 2024 - Springer
The persistent reliance on coal has resulted in the accumulation of substantial coal gangue,
a globally recognized problematic solid waste with environmental risks. Given the coal …

Co-combustion of wheat straw and camphor wood with coal slime: Thermal behaviour, kinetics, and gaseous pollutant emission characteristics

L **njie, Z Shihong, W **ncheng, S **ai, Z **ong… - Energy, 2021 - Elsevier
The disposal of coal slime has attracted increasing attention due to its increasing production
and consequent environmental pollution. The co-combustion with biomass is a promising …

Multifaceted evaluation of distribution, occurrence, and leaching features of typical heavy metals in different-sized coal gasification fine slag from Ningdong region …

Y Guo, Y Zhang, X Zhao, J Xu, G Qiu, W Jia… - Science of the Total …, 2022 - Elsevier
The coal gasification fine slag (CGFS) from the entrained-flow coal gasification unit faces the
challenge of safe disposal and clean utilization in the Ningdong region, China. This study …

Characteristics and speciation of heavy metals in fly ash and FGD gypsum from Chinese coal-fired power plants

B Fu, G Liu, MDM Mian, M Sun, D Wu - Fuel, 2019 - Elsevier
This research focused on the distribution and chemical speciation of Cr, Pb, Cd, Cu, Zn, and
As in fly ash and flue gas desulfurization gypsum (FGD gypsum) from a large-scale …

Co-combustion of industrial coal slurry and sewage sludge: Thermochemical and emission behavior of heavy metals

B Fu, G Liu, MM Mian, C Zhou, M Sun, D Wu, Y Liu - Chemosphere, 2019 - Elsevier
A combination of thermogravimetric analysis and lab-scale fixed bed combustion
experiments was carried out to study the thermochemical, kinetic and heavy metals emission …

Research of the workability, mechanical and hydration mechanism of coal gangue-construction solid waste backfilling materials

H Wu, S Kang, H Zhang, Q Sun, R Shen… - Construction and Building …, 2023 - Elsevier
In order to effectively address the issues of coal gangue emissions and the accumulation of
construction solid waste, a combined treatment of coal gangue and construction solid waste …

Comparative study on the structure characteristics, combustion reactivity, and potential environmental impacts of coal gasification fine slag with different particle size …

Y Guo, C Ma, Y Zhang, L Zhou, Z Guo, Z Miao, X Zhao… - Fuel, 2022 - Elsevier
This study aims to further reveal the properties of coal gasification fine slag (CGFS) and
provide the essential basis for the efficient and environmentally friendly utilization of solid …

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 …

Mineralogical and morphological factors affecting the separation of copper and arsenic in flash copper smelting slag flotation beneficiation process

H Zhou, G Liu, L Zhang, C Zhou - Journal of Hazardous Materials, 2021 - Elsevier
Separating copper and arsenic has always been a major problem in the copper slag
flotation process, which influences copper slag utilization and the environmental safety. A …