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Characterization of the anoxic sediments of Rio Tinto: biohydrometallurgical implications

机译:Rio Tinto缺氧沉积物的表征:生物术冶金意义

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Rio Tinto, a natural extreme acidic environment with a rather constant acidic pH and a high concentration of heavy metals, is the product of the metabolic activity of chemolithotrophic microorganisms thriving in the rich complex sulfides of the Iberian Pyritic Belt. Up to now the microbial characterization has been made mainly in the water column and biofilm samples. Since all ferric reducing activities will not benefit the bioleaching operations, we consider it critical to ascertain the ecology and metabolic properties of the microorganisms inhabiting the anoxic part of the sediments, to facilitate the design and control the operation of heap bioleaching processes, maximizing their efficiency. The implication of these microorganisms in biohydrometallurgical operations is discussed.
机译:Rio Tinto是一种具有相当恒定的酸性pH和高浓度的重金属的天然极端酸性环境,是在Iberian脱硫肌的富含复合硫化物中蓬勃发展的化学脱发微生物的代谢活性的产物。到目前为止,已经主要在水柱和生物膜样品中进行了微生物特征。由于所有公证的活动都不会使生物浸入业务有益,因此考虑到确定居住沉积物的缺氧部分的微生物的生态和代谢特性至关重要,以便于设计和控制堆生物浸入过程的操作,最大化它们的效率。讨论了这些微生物在生物素膜的含义。

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