A Pitot-tube jet pump for separating and transporting liquids of different densities is in use for processing oil-polluted water. The remaining oil-in-water (OiW) concentration is a main indicator for the process efficiency and requires a precise measuring method. Hence, a simple approach delivering reliable oil concentrations has been developed in this project. The measurement principle relies on the image acquisition of an OiW emulsion, where the oil phase is seeded with a selective dye tracer. In this concept study, a detailed description of the preparation procedure is provided. Suitable operation parameters leading to sufficiently stable emulsions have been obtained. Finally, a calibration function was determined. It can be used to correlate uniquely the image intensity to the oil concentration.

中文翻译：

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用于水包油浓度测量的荧光成像方法

用于分离和输送不同密度液体的皮托管喷射泵用于处理含油污水。剩余水包油 (OiW) 浓度是工艺效率的主要指标，需要精确的测量方法。因此，在该项目中开发了一种提供可靠油浓度的简单方法。测量原理依赖于 OiW 乳液的图像采集，其中油相接种有选择性染料示踪剂。在这个概念研究中，提供了制备过程的详细描述。已获得导致足够稳定的乳液的合适操作参数。最后，确定了校准函数。它可用于将图像强度与油浓度唯一地相关联。