期刊名称：International Journal of Advances in Engineering and Management
电子版ISSN：2395-5252
出版年度：2021
卷号：3
期号：6
页码：1773-1782
DOI：10.35629/5252-030615991607
语种：English
出版社：IJAEM JOURNAL
摘要：Many different methods of extraction of metal from its ores have been processed using chemicals like cyanide, ammonia, acids and alkali with the drawback of depositing significant quantities of effluent or waste into the environment. To overcome these issues, two different ecological approaches have been applied viz. Bioleaching and Phytomining. Bioleaching is an effective simple technology for the extraction of metals from low-grade ores and mineral concentrates. This phenomenon has the potential to recover metals, detoxify industrial waste products, sewage sludge, and can also beused in the remediation of soil.It is a simple eco-friendly method for the extraction of minerals or heavy metals from mineral wastes and ores when compared to other conventional methods. Several minerals and heavy metals like Copper, Zinc, Gold, Mercury, Uranium, Arsenic, etc. can be mined using this approach. Another effective method for extraction of heavy metal is Phytominingwhere extraction or mining of metals using hyperaccumulators (metal crops). Metals extracted from these high biomass crops producesulphide-free 'bio-ore' and are safely disposable. This method could be applied in degraded or mined land which provides a good economical profit in the extraction of metals via cropping and also increases the level of the plantation. As these two methods have to get explored on a large scale, this review has been designed to describe the extraction of the most important heavy metals like Copper, Nickel, Uranium, and other heavy metals using bioleaching and phytomining.
