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Investigating the use of agricultural waste and products in the leaching process of manganese oxide ore as a reductant | ||
| SUSTAINABILITY RESEARCH: Technology Development and Assessment | ||
| مقاله 3، دوره 1، شماره 1، تیر 2026 اصل مقاله (1.71 M) | ||
| نوع مقاله: Original Article | ||
| شناسه دیجیتال (DOI): 10.22098/sr.2025.14924.1023 | ||
| نویسندگان | ||
| Meysam Naseri1؛ mehdi Irannajad* 2؛ akbar mehdilo3 | ||
| 1PhD student, Amirkabir University of Technology, Tehran, Iran | ||
| 2Professor, Amirkabir University of Technology, Tehran, Iran | ||
| 3Assistant Professor, Mohaghegh Ardabili University, Ardabil, Iran | ||
| چکیده | ||
| Introduction: Manganese and its derivatives have various applications in different industries such as battery manufacturing, metallurgical, and chemicals. In recent years, the use of low-grade manganese resources has gained attention due to the depletion of high-grade manganese deposits. The gravity and magnetic separation methods are commonly used for concentration of manganese oxide ores. Pyrometallurgical (thermal treatments), biohydrometallurgical and hydrometallurgical methods have been used to extract manganese from manganese oxide sources. The leaching in an acidic medium is one of the suitable methods for processing the low-grade manganese resources, in which the presence of a reductant agent is necessary for the dissolution of manganese ore. Materials and Methods: In the previous studies, various reductant agents including sulphur dioxide, hydrogen peroxide, iron sulphate, different microorganisms, and organic chemicals have been used. There are different categories for reductants used in manganese oxide ore leaching process. The use of plant-based reductant agents is another option, where the reductant agent contains chemical compounds such as glucose and sucrose. The biocompatibility, cost-effectiveness, and availability are some of the advantages of plant-based reductant agents in the manganese ore dissolution. Conclusion: In this regard, banana peel, tea waste, processed straw, powdered dry leaves, molasses, and bamboo shoot powder are among the plant-based reductant agents used in the leaching of manganese oxides. Among them, Tea waste and bamboo shoot powder have shown the highest and lowest levels of recovery, respectively. Plant-based reductant agents require more reaction time and higher temperatures compared to other reducing agents. In general, the use of agricultural wastes and residues instead of chemicals in various processes leaching can be appropriate for various reasons, including low cost, improvement of agricultural waste management, and etc. | ||
| کلیدواژهها | ||
| Manganese ore؛ manganese dioxide؛ wastes؛ agricultural products؛ reducing agents؛ leaching | ||
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