Manganese is a critical element found in various natural and industrial environments, primarily sourced from crustal rock and mining ores. Its extensive use in industries such as steel manufacturing has led to significant environmental concerns due to contamination from mining activities. Traditional methods of manganese recovery are often environmentally damaging, necessitating the exploration of alternative techniques. Now, in our new article, we explore bioleaching as a sustainable method for manganese recovery, focusing on its potential to mitigate environmental impacts while efficiently extracting manganese from low-grade ores and industrial waste. This study reviews the bioleaching process, which involves using microorganisms to solubilize metals from ores. We detail the mechanisms by which microbes, including bacteria and fungi, facilitate manganese recovery through direct and indirect pathways. The study examines various microbial strains and their enzymatic activities that contribute to manganese oxidation and reduction. We also discuss the role of organic acids produced by these microorganisms in enhancing metal solubilization. The review highlights the advantages of bioleaching over conventional methods, such as reduced environmental impact and cost-effectiveness. This comprehensive review synthesizes current knowledge on microbial bioleaching processes and their application in recovering manganese from diverse waste materials. The results indicate that bioleaching is a promising technique for manganese recovery, offering an eco-friendly alternative to traditional methods. The review concludes that optimizing microbial strains and process parameters can enhance leaching efficiency, making it a viable option for large-scale applications. Future implications include the potential for bioleaching to be integrated into existing waste management strategies, contributing to sustainable metal recovery practices globally.
Manganese is essential for industrial processes, especially in steel production, and is commonly found in rocks, soil, and water. However, mining and industrial activities release manganese into the environment, causing pollution. Traditional methods to recover manganese are costly and harmful to the environment. This article explores bioleaching as an alternative method for manganese recovery. Bioleaching uses microbes (tiny organisms) to extract metals from ores and waste materials. This method is eco-friendly and cost-effective. The study reviews various bioleaching techniques, including using bacteria and fungi to recover manganese from different waste sources like spent batteries and industrial slag. It highlights how microbes convert insoluble manganese compounds into soluble forms through biological processes. This review also discusses the role of organic acids produced by microbes in enhancing metal recovery. The results show that bioleaching is a promising method for recovering manganese with minimal environmental impact. The review concludes that bioleaching could replace traditional methods, offering a sustainable solution for metal recovery. Future work could focus on optimizing microbial strains for better efficiency in different environments.
Manganese is a natural element found in various forms in the Earth's crust, with significant deposits in countries like Australia, Russia, and India. The growing demand for manganese in industries such as steel production has led to environmental concerns due to mining activities. This article published in Reviews in Environmental Science and Bio/Technology by Sansuta Mohanty and colleagues explores the potential of bioleaching as an eco-friendly method for recovering manganese from low-grade ores and industrial waste. The authors discuss how bioleaching utilizes microorganisms to solubilize metals from ores, offering a cost-effective and environmentally friendly alternative to traditional methods. The study highlights various microbial mechanisms involved in manganese recovery, including the use of bacteria and fungi that produce organic acids to dissolve manganese compounds. The article also analyzes the application of bioleaching in recovering manganese from spent batteries, silico-manganese slag, and electric furnace dust, demonstrating its potential for sustainable metal recovery. The review suggests that bioleaching could significantly reduce the environmental impact of manganese mining while providing an efficient recovery method. Future work may focus on optimizing microbial strains and process parameters to enhance leaching efficiency and expand the application of bioleaching technologies on a larger scale.
Our recent review published in Reviews in Environmental Science and Bio/Technology discusses the rising global demand for manganese and the urgent need for its recovery from metal-containing wastes. We highlight bioleaching as a sustainable solution for this challenge.
This article emphasizes the importance of microbial bioleaching for manganese recovery, addressing environmental concerns linked to mining. By exploring modern biomining techniques, we aim to enhance eco-friendly practices and promote health safety in industrial applications.
Our paper reviews the increasing global demand for manganese and the urgent need for its recovery from metal-containing wastes. We discuss the advantages of bioleaching using microbes as a cost-effective and eco-friendly method compared to traditional recovery techniques. The review highlights recent advancements in biomining, the selection criteria for manganese recovery methods, and the potential of molecular technologies in bioremediation. These insights aim to contribute to pollution reduction and improve occupational health outcomes. Read the full paper here.
Manganese is a critical element with rising industrial demand, yet its natural reserves are depleting rapidly. Our article highlights that bioleaching, a microbial process for recovering manganese from waste, offers a sustainable solution to this challenge. This review explores recent advancements in biomining and emphasizes the importance of selecting appropriate recovery techniques. Notably, it identifies that bioleaching not only aids in efficient metal recovery but also plays a significant role in reducing environmental pollution and preventing health disorders associated with manganese exposure. However, more work is still needed to optimize these methods for broader application in society. Read the full article here.