摘要
综述稀土钇(Y)在自然界的赋存状态及分布情况、主要的化学提取与生物提取方法,并从稀土钇生物浸出(微生物吸附、微生物代谢物浸取)、稀土钇对微生物的影响等方面探讨稀土钇与微生物之间的关系.生物法提取稀土钇前景广阔,但仍然面临着优势浸矿菌株匮乏、矿物-微生物互作机制尚不明确等诸多问题,在此基础上进一步提出建立高通量浸矿微生物筛选和功能菌种快速识别方法、加强微生物与钇在分子水平上的相互作用机制和微生物对钇元素的选择性浸出研究、推广微生物代谢产物生物浸取,优化原位浸提工艺技术等建议,期望能对我国钇资源的设计开发提供参考.
Abstract
The occurrence and distribution of rare earth yttrium(Y)in nature,the main chemical extraction and biological extraction methods were reviewed,and the relationship between rare earth yttrium and microorganisms was discussed from the aspects of rare earth yttrium bioleaching(microbial adsorption,microbial metabolite leaching)and the effect of rare earth yttrium on microorganisms.The biological extraction of rare earth yttrium has broad prospects,but it still faces many problems,such as the lack of dominant leac-hing strains and the unclear mechanism of mineral-microbial interaction.On this basis,this paper further put forward some suggestions,such as establishing a high-throughput microbial screening method and rapid identification of functional strains,strengthening the inter-action mechanism between microorganisms and yttrium at the molecular level and the selective leaching of yttrium by microorganisms,popularizing the biological leaching of microbial metabolites,and optimizing the in-situ extraction technology,hoping to provide refer-ence for the design and development of yttrium resources in China.
维普
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