About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
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| Symposium
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Characterization of Minerals, Metals and Materials 2026 - In-Situ Characterization Techniques
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| Presentation Title |
Experimental Research of Municipal Solid Waste Incineration Fly Ash in Electric Arc Furnace Melting Process integrated with Water Washing and Na2CO3 Addition |
| Author(s) |
Hang Hu, Chen Gong, Shuai Wang, Feng Chen, Yufeng Guo, Ling-zhi Yang |
| On-Site Speaker (Planned) |
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| Abstract Scope |
Municipal solid waste incineration fly ash (MSWI-FA) has the prominent issues of high content of heavy metals and chlorides, significant environmental hazards, and the substantial challenges in achieving large-scale and harmless treatment. This study employs a 50kVA semi-industrial electric arc furnace (EAF) melting experiment to investigate the impact of water washing and Na2CO3 addition on the vitrified product (VP) generated during the harmless treatment of MSWI-FA via EAF melting. The results demonstrate that water washing significantly reduces the chloride content in MSWI-FA, achieving removal efficiencies of 95.2%, 94.2% and 91.6% for NaCl, KCl and CaCl2 respectively. The addition of Na2CO3 exerts an even greater influence on the chlorine content within VP, reducing the final chlorine content to nearly 0%. The heavy metal toxicity of final VP is substantially lower than the limits stipulated for Class III water quality standards in the “Environmental Quality Standards for Surface Water” (GB 3838-2002). |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, Sustainability, Characterization |