Characterization of Galvanizing Flue Dust and Recycling Possibilities
Abstract
:1. Introduction
2. Materials and Methods
Sample Preparation and Characterization
3. Results
3.1. Surface Analysis
3.2. The Chemical Composition Analysis
3.3. The Phase Analysis
3.4. Morphology of Samples
3.5. Leachability Testing
4. Recycling Possibilities
4.1. Proposed Two-Step Leaching Recycling Method
4.2. Proposed Solution Refining and Zinc Recovery
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Sample | Degasified in Vacuum 30 °C/24 h | Specific Surface Area (m2 g−1) | Density (g cm−3) |
---|---|---|---|
A—grey | ≈1% | 1.74 | 1.88 |
B 1—brown | ≈0.3% | 0.28 | 1.72 |
B 2—brown | 0.3 + 0.3% | 0.55 | 1.69 |
C—light gray | ≈1.2% | 2.41 | 1.85 |
Sample | Zn | Fe | Cu | Pb | Al | Si | Sn | Ca | Cl− | Residue |
---|---|---|---|---|---|---|---|---|---|---|
A | 27.49 | 0.34 | <LoD | 0.07 | 1.03 | <LoD | <LoD | 0.17 | 23.40 | 47.5 |
B | 26.9 | 0.32 | <LoD | 0.06 | 0.38 | <LoD | <LoD | 0.05 | 28.37 | 43.98 |
C | 28.0 | 0.35 | <LoD | 0.07 | 0.97 | <LoD | <LoD | 0.08 | 42.56 | 29.01 |
Sample | Concentration (mg.l−1) | |||||||||
Al | As | Cd | Co | Cr | Cu | Hg | Mo | Ni | Pb | |
A | 2.118 | <LoD | 0.5041 | 0.025 | <LoD | 1.76 | 0 | 0 | 0.7561 | 41.225 |
B | 1.952 | <LoD | 0.5233 | 0.010 | <LoD | 1.05 | 0 | 0 | 0.6542 | 39.013 |
C | 2.206 | <LoD | 0.5122 | 0.026 | <LoD | 1.43 | 0 | 0 | 0.8241 | 40.325 |
Sample | Concentration (mg.l−1) | |||||||||
Sb | Se | Sn | V | Zn | Cl− | F- | pH | |||
A | 0 | 0 | <LoD | 0 | 80,145 | 43,024 | 1.52 | 50 | 5.872 | |
B | 0 | 0 | <LoD | 0 | 72,750 | 37,871 | 1.23 | 48 | 5.682 | |
C | 0 | 0 | <LoD | 0 | 87,780 | 47,123 | 1.01 | 43 | 5.914 |
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Pirošková, J.; Klimko, J.; Trpčevská, J.; Laubertová, M.; Plešingerová, B.; Liptai, P.; Vindt, T.; Oráč, D. Characterization of Galvanizing Flue Dust and Recycling Possibilities. Metals 2022, 12, 744. https://doi.org/10.3390/met12050744
Pirošková J, Klimko J, Trpčevská J, Laubertová M, Plešingerová B, Liptai P, Vindt T, Oráč D. Characterization of Galvanizing Flue Dust and Recycling Possibilities. Metals. 2022; 12(5):744. https://doi.org/10.3390/met12050744
Chicago/Turabian StylePirošková, Jana, Jakub Klimko, Jarmila Trpčevská, Martina Laubertová, Beatrice Plešingerová, Pavol Liptai, Tomáš Vindt, and Dušan Oráč. 2022. "Characterization of Galvanizing Flue Dust and Recycling Possibilities" Metals 12, no. 5: 744. https://doi.org/10.3390/met12050744