Analysis of element yield, bacterial community structure and the impact of carbon sources for bioleaching rare earth elements from high grade monazite

IF 2.5 4区生物学 Q3 MICROBIOLOGY

Research in microbiology Pub Date : 2024-01-01 DOI:10.1016/j.resmic.2023.104133

Melissa K. Corbett , April Gifford , Nick Fimognari , Elizabeth L.J. Watkin

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引用次数: 0

Abstract

Rare earth element (REE) recovery from waste streams, mine tailings or recyclable components using bioleaching is gaining traction due to the shortage and security of REE supply as well as the environmental problems that occur from processing and refining. Four heterotrophic microbial species with known phosphate solubilizing capabilities were evaluated for their ability to leach REE from a high-grade monazite when provided with either galactose, fructose or maltose. Supplying fructose resulted in the greatest amount of REE leached from the ore due to the largest amount of organic acid produced. Gluconic acid was the dominant organic acid identified produced by the cultures, followed by acetic acid. The monazite proved difficult to leach with the different carbon sources, with preferential release of Ce over La, Nd and Pr.

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从高级独居石中生物浸出稀土元素的元素产率、细菌群落结构和碳源影响分析。

由于稀土元素供应短缺和安全，以及加工和精炼过程中出现的环境问题，使用生物浸出从废物流、尾矿或可回收成分中回收稀土元素越来越受到重视。评估了四种具有已知磷酸盐溶解能力的异养微生物物种，当提供半乳糖、果糖或麦芽糖时，它们从高级独居石中浸出REE的能力。由于产生的有机酸量最大，提供果糖导致矿石中浸出的REE量最大。葡萄糖酸是经鉴定的主要有机酸，其次是乙酸。独居石很难用不同的碳源浸出，Ce的释放优先于La、Nd和Pr。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Research in microbiology 生物-微生物学

CiteScore

4.10

自引率

3.80%

发文量

审稿时长

16 days

期刊介绍： Research in Microbiology is the direct descendant of the original Pasteur periodical entitled Annales de l''Institut Pasteur, created in 1887 by Emile Duclaux under the patronage of Louis Pasteur. The Editorial Committee included Chamberland, Grancher, Nocard, Roux and Straus, and the first issue began with Louis Pasteur''s "Lettre sur la Rage" which clearly defines the spirit of the journal:"You have informed me, my dear Duclaux, that you intend to start a monthly collection of articles entitled "Annales de l''Institut Pasteur". You will be rendering a service that will be appreciated by the ever increasing number of young scientists who are attracted to microbiological studies. In your Annales, our laboratory research will of course occupy a central position, but the work from outside groups that you intend to publish will be a source of competitive stimulation for all of us."That first volume included 53 articles as well as critical reviews and book reviews. From that time on, the Annales appeared regularly every month, without interruption, even during the two world wars. Although the journal has undergone many changes over the past 100 years (in the title, the format, the language) reflecting the evolution in scientific publishing, it has consistently maintained the Pasteur tradition by publishing original reports on all aspects of microbiology.