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首页> 外文期刊>Coke and chemistry >Behavior of Trace Elements During Industrial Coal Combustion. Their Scattering in Soils
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Behavior of Trace Elements During Industrial Coal Combustion. Their Scattering in Soils

机译：工业煤燃烧过程中微量元素的行为。它们在土壤中的散射

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摘要

Industrial combustion of fossil coals "mobilizes" trace elements and results in their redistribution in combustion products. Thermally inert elements are retained with the ash-slag mass and thermally mobile elements are released in the gas phase. Trace elements and their compounds with high condensation temperatures are sorbed by fly-ash particles. The enrichment ratio is 2.5-3 and may reach 7. The nonsorbable elements are released into the environment in the gas phase.There is established a correspondence between the distribution of trace elements in soil and their behavior during combustion. Excessive concentrations in soil and aureoles are formed only by emission trace elements. The sorbable elements form embryonal aureoles due to the enrichment ratio of fly ash. Nonsorbable trace elements are accumulated most intensively. There are no limiting concentration levels in soil for these elements. Thermally inert trace elements do not produce aureoles in soil.
机译：化石煤的工业燃烧“动员”微量元素，并导致其在燃烧产物中的重新分布。热惰性元素与灰渣团块一起保留，而热活动元素则以气相释放。微量元素及其高冷凝温度的化合物被飞灰颗粒吸收。富集比为2.5-3并可能达到7。不可吸收元素以气相形式释放到环境中。在土壤中微量元素的分布与其在燃烧过程中的行为之间建立了对应关系。土壤和金黄色葡萄球菌中的过量浓度仅由排放微量元素形成。由于粉煤灰的富集率，可吸收元素形成了胚芽的金黄色。不可吸收的痕量元素积累最密集。这些元素在土壤中没有限制的浓度水平。具有热惰性的微量元素不会在土壤中产生金黄色的。

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