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首页> 外文期刊>International journal of environmental analytical chemistry >STUDY OF Cr(VI) IN ASHES FROM FLUIDISED BED COMBUSTION OF LEATHER WASTE: APPLICABILITY OF DIFFERENT SPECIATION METHODS
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STUDY OF Cr(VI) IN ASHES FROM FLUIDISED BED COMBUSTION OF LEATHER WASTE: APPLICABILITY OF DIFFERENT SPECIATION METHODS

机译：皮革床流化床燃烧灰烬中Cr（VI）的研究：不同专门方法的适用性

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摘要

Leather waste originated from shoe industry is considered potential hazardous waste as a consequence of the chrome tanned leather process. On the other hand, the leather waste has an inherent value as fuel that makes feasible its use as a very interesting potential source of energy; nevertheless ash residues are produced during the combustion process. This waste disposed in landfills can cause leachate problems. For that reason, determination of hexavalent chromium is considered as an essential input parameter for the safe disposal of these residues. However the current methods provide ambiguity in the results. The objective of this work was to evaluate two different speciation methods: Method SLC 22 (IUC 18) called Method Ⅰ, used for leather technicians and Method Ⅱ, developed by the Analytical Chemistry Laboratory of CIEMAT, to analyse the Cr(VI) content in ashes from fluidised bed combustion of leather waste. Both methods provide appropriate results for these kinds of samples when a non-reducing environment is present.
机译：源自制鞋业的皮革废料被认为是潜在的有害废料，原因是铬鞣制皮革工艺。另一方面，皮革废料作为燃料具有内在价值，使其成为一种非常有趣的潜在能源成为可能。但是，在燃烧过程中仍会产生灰渣。丢弃在垃圾填埋场中的废物可能会导致渗滤液问题。因此，六价铬的测定被认为是安全处置这些残留物的基本输入参数。但是，当前的方法在结果中存在歧义。这项工作的目的是评估两种不同的形态形成方法：用于皮革技术人员的称为方法Ⅰ的方法SLC 22（IUC 18）和由CIEMAT的分析化学实验室开发的方法Ⅱ，用于分析皮革中的Cr（VI）含量。流化床燃烧皮革废物产生的灰烬。当存在非还原性环境时，两种方法均可为此类样品提供适当的结果。

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