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A novel process for sorting fine-sized sulphide minerals by biocoagulation 被引量:1

A novel process for sorting fine-sized sulphide minerals by biocoagulation
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摘要 基于一个过程设计想法,在柏林的技术大学的调查证实微生物的 biocoagulation 和稳固的粒子将是一个新方法产生对排序合适的更粗糙的粒子。微生物的选择 biocoagulation 的过程,分别地例如酵母喜欢 Saccharomyces cerevisiae 和 Yarrowia lipolytica,并且例如象方铅矿和闪锌矿一样的矿物质,微分散固体作为一个新奇排序过程的一个基础被分析了。因此,特别微生物的房间表面的特征例如静电的费用和细胞外的聚合物质的作文,以及他们对选择 biocoagulation 的影响被学习。在 10 m 下面的微生物和硫醚粒子有效地凝结的试验性的调查表演。而且,筹款对有选择地形成的 biocoagulates 的分离合适。与设计的列筹款,令人满意的恢复率被到达。 Based on a process design idea, investigations at Technical University of Berlin confirm that the biocoagulation of microorganisms and solid particles would be a new method to generate coarser particles suitable for sorting. The procedure of selective biocoagulation of microorganisms, e.g. yeasts like Saceharomyces cerevisiae and Yarrowia lipolytica respectively, and micro-dispersed solids, e.g. minerals like galena and sphalerite, has been analyzed as a basis for a novel sorting process. Therefore, especially the characteristics of the cell surface of the microorganisms, e.g. the electrostatic charge and the composition of extracellular polymeric substances, as well as their influence on the selective biocoagulation were studied. Experimental investigations show that the microorganisms and the sulphide particles below 10 μm coagulate effectively. Furthermore, the flotation is suitable for the separation of the selectively formed biocoagulates. With the designed column flotation, satisfying recovery rates are reached.
出处 《中国有色金属学会会刊:英文版》 EI CSCD 2008年第6期1473-1479,共7页 Transactions of Nonferrous Metals Society of China
基金 The research work has the Integrated EC Project been executed as a part of "Biotechnology for Metal Bearing Materials in Europe (BioMinE)". The authors thank the European Commission for the financial support of the work.
关键词 硫矿 拣选 生物凝固 微生物 sulphide mineral sorting biocoagulation
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