Synthesis and Characterization of Poly-Aluminum Chloride (PAC) from Aluminum Factory Waste for Water Treatment Applications
Main Article Content
Abstract
This paper presents the results of PAC synthesis from aluminum factory waste. PAC was synthesized under the following conditions: HCl 18%, reaction temperature of 70 °C, reaction time of 15 minutes for AlCl3 formation reaction; NaOH 6M, pH of 5, reaction temperature of 25 °C, and reaction time of 30 minutes for PAC synthesis from AlCl3. The synthesized PAC meets technical requirements, with an aluminum content of approximately 13%. The surface water treatment efficiency using PAC synthesized from aluminum factory waste is quite good, with turbidity notably reducing from 13NTU to 1.8NTU, meeting current Vietnam Quality Standards requirements.
Keywords:
PAC, aluminum slag waste, aluminum waste products, water treatment,...
References
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[5] A. E. Kassa et al., Synthesis of Polyaluminum Chloride: Optimization of Process Parameters, Characterization and Performance Investigation for Water Treatment, Journal of Water Process Engineering, Vol. No. 57, 2024,
https://doi.org/10.1016/j.jwpe.2023.104700.
[6] V. Dumitrascu, L. Benea, E. Danaila, Corrosion Behavior of Aluminium Oxide Film Growth by Controlled Anodic Oxidation, Material Science and Engineering, Vol. 209, 2017.
[7] M. K. Alam, J. Zanganeh, B. Moghtaderi, The Composition, Lecycling and Utilisation of Bayer Red Mud, Resources, Conservation and Recycling, Vol. 141, 2019, pp. 483-498.
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[9] A. Y. A. Mohamed et al., Physiochemical Treatment of Wastewater Utilizing Polyaluminum Chloride for Khartoum North Wastewater Effluent, University of Khartoum Engineering Journal, Vol. 7, No. 1, 2017, pp. 44-51.
[10] F. Li et al., Preparation and Performance of a High Purity Poly-aluminum Chloride, Chemical Engineering Journal, Vol. 156, No. 1, 2010, pp. 64-69.
[11] X. Tang et al., An Alternative Method for Preparation of Polyaluminum Chloride Coagulant using Fresh Aluminum Hydroxide Gels: Characterization and Coagulation Performance, Chemmical Engineering Research and Design, Vol. 104, 2015, pp. 208-217.
[12] H. Y. Hanan et al., Synthesis of Polyaluminum Chloride Coagulant from Waste Aluminum Foil and Utilization in Petroleum Wastewater Treatment, Advances in Materials for Separations: Energy and Enviroment, Vol. 10, 2023.
[13] A. I. Zouboulis, N. Tzoupanos, Alternative Cost-Effective Preparation Method of Polyaluminium Chloride (PAC) Coagulant Agent: Characterization and Comparative Application for Water/Wastewater Treatment, Desalination,
Vol. 250, No. 1, 2010, pp. 339-244.
[14] F. M. Mohamed et al., Novel Method of Poly Aluminum Chloride Extraction from Kaolin and its Application for Wastewater Treatment, Desalination and Water Treatment, Vol. 317, 2024.
[15] N. Kumar, N. Balasundaram, Efficiency of PAC in Water Treatment Plant & Disposal of its Sludge, International Journal of Applied Engineering Research, Vol. 12, 2017, pp. 3253-3262.