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From laboratory to application heap bioleach or not

机译：从实验室到应用堆生物ache或没有

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The importance of comprehensive laboratory evaluation for development of an ore body to commercial processing using biohydrometallurgy cannot be understated. Laboratory evaluation for a biohydrometallurgical process must include the microbiological component and definition of operating parameters for the engineers to design the commercial plant. Failure to meet commercial production at a mine site can be a consequence of incomplete understanding of biohydrometallurgical technologies for processing a specific ore. One example is the inability of a copper bioleach process to meet the design criteria in part because of lack of sufficient testing to demonstrate the ramifications of fluoride toxicity to the microbial component of the bioleach process. Laboratory research has demonstrated toxicity of low levels of fluoride to Acidithiobacillus species. However, laboratory determined toxicity values are not always relevant to field conditions at commercial bioleach operations. This is the case with fluoride toxicity where complexing reactions increase the amount of fluoride required for toxicity. Consequently, the toxic fluoride concentrations at field sites can be significantly higher than toxic levels reported in the laboratory, but still achieve concentration inhibitory for the microorganisms.
机译：综合实验室评估对使用BioHydometallyhurgy进行商业加工的矿石对商业加工的重要性。对生物素冶金工艺的实验室评估必须包括微生物组件和用于工程师设计商业植物的操作参数的定义。未能在矿区达到商业生产可能是对处理特定矿石的生物术冶金技术不完全理解的结果。一个例子是铜Biolo烷工艺的不可能满足设计标准，部分原因是缺乏足够的测试来证明氟化物毒性对生物植物的微生物组分的分枝。实验室研究表明氟化含量低水平的含氟虫草。然而，实验室确定的毒性值与商业Bioleach行动的现场条件并不总是相关的。这是氟化物毒性的情况，其中络合反应增加了毒性所需的氟化物量。因此，现场位点的毒性氟化物浓度可以显着高于实验室中报道的毒性水平，但仍然达到微生物的浓度抑制。

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