Preparation of Poly Aluminum-Ferric Chloride (PAFC) Coagulant by Extracting Aluminum and Iron Ions from High Iron Content Coal Gangue
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Procedure
2.3. Instrumentation and Characterization
2.4. Source of Wastewater
2.5. Determination of Turbidity Removal Performance
3. Results and Discussion
3.1. XRD Analysis of Coal Gangue
3.2. Morphology and Energy Spectrum Analyses of the Coal Gangue
3.3. XRD Analysis of Calcined Powder and Acid Leaching Residue of Coal Gangue
3.4. XRD and Composition Analysis of Calcined Powder and Acid Leaching Filter Residue of Coal Gangue
3.5. Effect of pH of the Preparation System on the Turbidity Removal Performance
3.6. Effect of Microwave Power on Turbidity Removal Performance
3.7. Effect of Radiation Time on Turbidity Removal Performance
3.8. XRD Analysis of the Products
3.9. FT-IR Analysis of the Product
3.10. Treatment of Mine Wastewater
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Components | Coal Gangue | Calcined Powder | Residue |
---|---|---|---|
SiO2 | 44.23 | 52.1 | 78 |
Al2O3 | 18.78 | 21.89 | 2.84 |
Fe2O3 | 12.46 | 14.34 | 1.28 |
CaO | 2.40 | 2.72 | 0.02 |
MgO | 0.75 | 0.84 | _ |
MnO | 0.19 | 0.23 | _ |
P2O5 | 0.30 | 0.34 | _ |
TiO2 | 3.98 | 4.48 | 15.5 |
S | 0.31 | 0.35 | _ |
K2O | 1.24 | 1.37 | 0.78 |
Na2O | 0.22 | 0.24 | 0.02 |
FC and others | 15.14 | 1.1 | 0.92 |
PAC | PAF | PAFC | |
---|---|---|---|
Turbidity removal ratio/% | 96.4 | 93.7 | 99.6 |
residual turbidity/NTU | 176.26 | 308.45 | 29.38 |
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Kong, D.; Zhou, Z.; Song, S.; Feng, S.; Lian, M.; Jiang, R. Preparation of Poly Aluminum-Ferric Chloride (PAFC) Coagulant by Extracting Aluminum and Iron Ions from High Iron Content Coal Gangue. Materials 2022, 15, 2253. https://doi.org/10.3390/ma15062253
Kong D, Zhou Z, Song S, Feng S, Lian M, Jiang R. Preparation of Poly Aluminum-Ferric Chloride (PAFC) Coagulant by Extracting Aluminum and Iron Ions from High Iron Content Coal Gangue. Materials. 2022; 15(6):2253. https://doi.org/10.3390/ma15062253
Chicago/Turabian StyleKong, Deshun, Zihan Zhou, Shuojiang Song, Shan Feng, Minglei Lian, and Rongli Jiang. 2022. "Preparation of Poly Aluminum-Ferric Chloride (PAFC) Coagulant by Extracting Aluminum and Iron Ions from High Iron Content Coal Gangue" Materials 15, no. 6: 2253. https://doi.org/10.3390/ma15062253