Before wastewater (WW) can be emitted into the municipal treatments plants, its organic matter content has to be assessed and found to comply with legislations. The chemical oxygen demand (COD) and total organic carbon (TOC) are among the most commonly used methods for such analysis. However, volatile organic compounds (VOC) present in the WW might hinder a correct organic matter estimation using these conventional methods. In this study, nuclear magnetic resonance (NMR) was used to identify and quantify VOC in dairy WW. It was determined that the NMR, COD and TOC analyses complement each other providing a more accurate estimation of the organic matter content in WW. In addition, NMR provides data on the metabolic composition of the dairy WW. This information was used to assess the possibility to reutilize dairy WW for the production of high added value compounds.

中文翻译：

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核磁共振波谱法和常规分析方法在食品工业废水评估中的应用

在将废水排放到市政处理厂之前，必须对其废水中的有机物含量进行评估，并确保其符合法规要求。化学需氧量（COD）和总有机碳（TOC）是此类分析中最常用的方法。但是，WW中存在的挥发性有机化合物（VOC）可能会妨碍使用这些常规方法进行正确的有机物估算。在这项研究中，核磁共振（NMR）用于鉴定和量化乳品废水中的VOC。已确定NMR，COD和TOC分析相辅相成，可以更准确地估算WW中的有机物含量。另外，NMR提供了关于乳品WW代谢成分的数据。