关键词: Algae Bioaccumulation Bioleaching Microorganisms Rare earth elements Recovery

Mesh : Microalgae / metabolism Metals, Rare Earth / metabolism Biodegradation, Environmental Bacteria / metabolism classification Environmental Restoration and Remediation / methods Biotechnology / methods Industrial Waste / analysis Bioaccumulation

来  源:   DOI:10.1007/s11274-024-03974-4   PDF(Pubmed)

Abstract:
Rare Earth Elements (REEs) are indispensable in contemporary technologies, influencing various aspects of our daily lives and environmental solutions. The escalating demand for REEs has led to increased exploitation, resulting in the generation of diverse REE-bearing solid and liquid wastes. Recognizing the potential of these wastes as secondary sources of REEs, researchers are exploring microbial solutions for their recovery. This mini review provides insights into the utilization of microorganisms, with a particular focus on microalgae, for recovering REEs from sources such as ores, electronic waste, and industrial effluents. The review outlines the principles and distinctions of bioleaching, biosorption, and bioaccumulation, offering a comparative analysis of their potential and limitations. Specific examples of microorganisms demonstrating efficacy in REE recovery are highlighted, accompanied by successful methods, including advanced techniques for enhancing microbial strains to achieve higher REE recovery. Moreover, the review explores the environmental implications of bio-recovery, discussing the potential of these methods to mitigate REE pollution. By emphasizing microalgae as promising biotechnological candidates for REE recovery, this mini review not only presents current advances but also illuminates prospects in sustainable REE resource management and environmental remediation.
摘要:
稀土元素(REE)在当代技术中不可或缺,影响我们日常生活和环境解决方案的各个方面。对稀土需求的不断增长导致了开采的增加,导致产生各种含稀土的固体和液体废物。认识到这些废物作为稀土次要来源的潜力,研究人员正在探索微生物解决方案来恢复它们。这篇小型评论提供了对微生物利用的见解,特别关注微藻,从矿石等来源回收稀土,电子垃圾,和工业废水。综述概述了生物浸出的原理和区别,生物吸附,和生物积累,对它们的潜力和局限性进行了比较分析。强调了在REE回收中表现出功效的微生物的具体例子,伴随着成功的方法,包括增强微生物菌株以实现更高的稀土回收率的先进技术。此外,这篇评论探讨了生物回收对环境的影响,讨论这些方法减轻稀土元素污染的潜力。通过强调微藻是REE回收的有希望的生物技术候选物,这项小型审查不仅介绍了当前的进展,而且阐明了可持续稀土资源管理和环境修复的前景。
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