Utilization of MSW-Derived Biochar for Production of Iron Through Solid–Solid Reaction
Every year, the increasing human population has contributed to the abundance of Municipal Solid Waste (MSW) at designated landfills, especially in Malaysia. On the other hand, in the iron and steel industry, a high demand for steel production has caused an increase in CO2 production, which would, u...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IIUM Press, International Islamic University Malaysia
2025-05-01
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| Series: | International Islamic University Malaysia Engineering Journal |
| Subjects: | |
| Online Access: | https://journals.iium.edu.my/ejournal/index.php/iiumej/article/view/3509 |
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| Summary: | Every year, the increasing human population has contributed to the abundance of Municipal Solid Waste (MSW) at designated landfills, especially in Malaysia. On the other hand, in the iron and steel industry, a high demand for steel production has caused an increase in CO2 production, which would, unfortunately, contribute to global warming. Therefore, sustainable solutions are needed to avoid this environmental crisis from worsening. This study employed an effective approach, utilizing low-grade iron ore from Pahang to produce iron by using MSW-derived biochar as an alternative to coal as a reductant and energy source. This project aims to study the mechanism of the solid-solid reduction reaction of iron ore with carbon. MSW was collected and prepared before the slow pyrolysis to obtain the MSW-derived biochar. Iron ore was characterized by using X-Ray Fluorescence (XRF) for elemental composition determination and X-Ray Diffraction (XRD) to observe the presence of mineral phases. In this research, the solid-solid reaction was conducted for the reduction reaction at 900? with residence times of 1 hour, 3 hours, and 5 hours. From the research that has been conducted, temperature and residence time were found to influence the elemental composition, reduction degree, and mineral phase transformation of iron.
ABSTRAK: Setiap tahun, peningkatan populasi manusia telah menyumbang kepada kelimpahan Sisa Pepejal Perbandaran (MSW) di tapak pelupusan yang ditetapkan, terutamanya di Malaysia. Manakala dalam industri besi, permintaan yang tinggi terhadap pengeluaran keluli telah menyebabkan peningkatan pengeluaran karbon dioksida, yang malangnya menyumbang kepada pemanasan global. Oleh itu, penyelesaian yang mampan diperlukan untuk mengelakkan krisis alam sekitar ini menjadi lebih buruk. Dalam kajian ini, pendekatan yang berkesan digunakan dengan memanfaatkan bijih besi gred rendah untuk pembuatan besi dengan menggunakan arang yang dihasilkan daripada MSW sebagai alternatif kepada arang batu sebagai bahan agen penurunan serta sumber tenaga. Tujuan projek ini adalah untuk mengkaji mekanisma tindak balas dalam pembuatan besi. MSW telah dikumpulkan dan disediakan sebelum menjalani proses pirolisis untuk mendapatkan arang yang dihasilkan daripada MSW. Bijih besi dianalisa menggunakan Fluoresens X-Ray (XRF) untuk penentuan komposisi unsur dan Penghabluran X-Ray (XRD) untuk memperoleh komposisi fasa mineral. Dalam penyelidikan ini, eksperimen dijalankan untuk tindak balas penurunan pada suhu 900? dengan masa selama 1 jam, 3 jam dan 5 jam. Berdasarkan kajian yang telah dijalankan, suhu dan masa didapati mempengaruhi komposisi unsur serta tahap penurunan besi.
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| ISSN: | 1511-788X 2289-7860 |