Composition and Morphology Characteristics of Magnetic Fractions of Coal Fly Ash Wastes Processed in High-Temperature Exposure in Thermal Power Plants
Abstract
:1. Introduction
2. Materials and Methods
2.1. Sampling and Size Analysis
2.2. Characterization
3. Results and Discussion
3.1. The particle Size Distribution
3.2. Mineralogical Analysis
3.3. Morphological Analysis
4. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Element (%) | The Concentration of Major Elements (%) of Magnetic Fly Ash | |
---|---|---|
UB | PL | |
SiO2 | 43.64 | 42.85 |
TiO2 | 0.83 | 0.76 |
Al2O3 | 21.97 | 21.05 |
T-Fe2O3 | 23.54 | 22.79 |
MnO | 0.26 | 0.22 |
MgO | 1.89 | 1.96 |
CaO | 1.85 | 1.53 |
Na2O | 0.03 | 0.05 |
K2O | 2.47 | 2.71 |
P2O5 | 0.22 | 0.2 |
SO3 | 0.34 | 0.47 |
LOI * | 3.0 | 5.6 |
Size (µm) | Content (%) | |||||
---|---|---|---|---|---|---|
Uong Bi (UB) Fly Ash | Pha Lai (PL) Fly Ash | |||||
Fly ash | Magnetic | Nonmagnetic | Fly ash | Magnetic | Nonmagnetic | |
>250 | 0.41 | 0.14 | 0.27 | 0.33 | 0.12 | 0.21 |
90–250 | 16.48 | 2.03 | 14.45 | 14.48 | 2.59 | 11.89 |
45–90 | 25.58 | 3.52 | 22.06 | 31.19 | 4.62 | 26.57 |
32–45 | 31.18 | 2.43 | 28.75 | 36.66 | 3.23 | 33.43 |
<32 | 26.24 | 2.11 | 24.13 | 16.93 | 2.51 | 14.42 |
Total | 99.89 | 10.23 | 89.66 | 99.59 | 13.07 | 86.52 |
Element (%) | The Concentration of Trace Elements (ppm) of Magnetic Fly Ash | |
---|---|---|
UB | PL | |
Co | 26.13 | 34.27 |
Ni | - | - |
Cu | 42.92 | 39.38 |
Zn | 15.51 | - |
Mo | 1.24 | 1.15 |
Cd | - | 0.23 |
Pb | 27.22 | 21.73 |
Mn | 739.38 | 1237.46 |
Mg | 700.94 | 754.2 |
Cr | 148.75 | 132.18 |
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Vu, D.-H.; Bui, H.-B.; Kalantar, B.; Bui, X.-N.; Nguyen, D.-A.; Le, Q.-T.; Do, N.-H.; Nguyen, H. Composition and Morphology Characteristics of Magnetic Fractions of Coal Fly Ash Wastes Processed in High-Temperature Exposure in Thermal Power Plants. Appl. Sci. 2019, 9, 1964. https://doi.org/10.3390/app9091964
Vu D-H, Bui H-B, Kalantar B, Bui X-N, Nguyen D-A, Le Q-T, Do N-H, Nguyen H. Composition and Morphology Characteristics of Magnetic Fractions of Coal Fly Ash Wastes Processed in High-Temperature Exposure in Thermal Power Plants. Applied Sciences. 2019; 9(9):1964. https://doi.org/10.3390/app9091964
Chicago/Turabian StyleVu, Dinh-Hieu, Hoang-Bac Bui, Bahareh Kalantar, Xuan-Nam Bui, Dinh-An Nguyen, Qui-Thao Le, Ngoc-Hoan Do, and Hoang Nguyen. 2019. "Composition and Morphology Characteristics of Magnetic Fractions of Coal Fly Ash Wastes Processed in High-Temperature Exposure in Thermal Power Plants" Applied Sciences 9, no. 9: 1964. https://doi.org/10.3390/app9091964