Bacterial Desulphurization of Brown Coals

P. Fecko, M. Kušnierová, M. Šafářová, V. Čablík, I. Pečtová
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Abstract

The objective of the paper was application of bacterial leaching on 2 brown coal samples from bore S 187 (CV) from locality Mine CSA Most. Based on the results of bacterial leaching and petrologic analyses of the given samples, it is possible to state that the individual samples are very similar, they contain significant shares of clay materials and pyrite is predominantly represented in a framboidal form, which intergrowths into a massive form. Applying bacterial leaching it is possible to remove from 32 to 38% of total sulphur and from 30 to 32% of pyritic sulphur from the coal; better results are obtained eliminating sulphate sulphur, i.e. up to 50% desulphurization.
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褐煤的细菌脱硫
研究了细菌浸出法在CSA Most矿区s187 (CV) 2个褐煤样品上的应用。根据细菌浸出的结果和给定样品的岩石学分析,有可能指出单个样品非常相似,它们含有大量的粘土物质,黄铁矿主要以树状形式存在,它们相互生长成块状形式。采用细菌浸出法,可以从煤中去除32 ~ 38%的总硫和30 ~ 32%的黄铁矿硫;除硫效果较好,即脱硫率达50%。
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