石油化工高等学校学报

石油化工高等学校学报 ›› 2023, Vol. 36 ›› Issue (4): 13-19.DOI: 10.12422/j.issn.1006-396X.2023.04.002

• 石油化工 • 上一篇    下一篇

基于抽提萃取⁃智能手机图片比色法的含油污泥含油率测定

冯恩临(), 吴限, 邹尉婕, 李丽华()   

  1. 辽宁石油化工大学 石油化工学院,辽宁 抚顺 113001
  • 收稿日期:2022-03-20 修回日期:2023-05-06 出版日期:2023-08-25 发布日期:2023-09-05
  • 通讯作者: 李丽华
  • 作者简介:冯恩临(1996⁃),男,硕士研究生,从事石油类污染物分析测试方面的研究; E⁃mail:915547021@qq.com
  • 基金资助:
    辽宁省教育厅资助项目(2018CYY015);辽宁省地方(盘锦)创新项目(2018010398)

Determination of Oil Content in Oily Sludge Based on Extraction and Smartphone Image Colorimetry

Enlin Feng(), Xian Wu, Weijie Zou, Lihua Li()   

  1. School of Petrochemical Engineering,Liaoning Petrochemical University,Fushun Liaoning 113001,China
  • Received:2022-03-20 Revised:2023-05-06 Published:2023-08-25 Online:2023-09-05
  • Contact: Lihua Li

摘要:

对传统含油污泥含油率测定方法进行改进,将图片比色法与热溶剂抽提的前处理方法相结合,建立了抽提萃取?智能手机图片比色法,并考察了RGB颜色通道、曝光时间、感光度、白平衡值等参数对含油率测定结果的影响。以碘钨灯为光源,使用三星A8s手机前置摄像头拍摄,确定了最佳测试条件:曝光时间为1/2 000 s,感光度为100,白平衡值为2 800 K。在最佳测试条件下该方法的线性相关系数大于0.99,线性范围与分光光度法相近,检出限为0.06%,测定下限为0.24%。8组平行标准样品测试的加标回收率为96%~103%,相对标准偏差为2.26%,说明该方法准确度相对较高。该方法比传统含油污泥含油率测定方法更加简单快速,准确度满足常规含油率测定需求,有望实现工厂大规模含油污泥含油率的现场快速测定。

关键词: 含油污泥, 图片比色法, 数字图像, 定量测定

Abstract:

The traditional method for determining the oil content of oily sludge was improved, and the extraction smartphone image colorimetry was established by combining the image colorimetry with the pretreatment method of hot solvent extraction. The effects of RGB value, different color channels, shutter time, sensitivity, white balance and other parameters on the determination of oil content were investigated. Under the premise that the light source was tungsten iodide lamp and the front camera of Samsung A8s mobile phone was used, the best test conditions were finally determined: white balance value was 2 800 K, sensitivity value was 100, shutter time was 1 / 2 000 s. The linear correlation coefficients of the method under the optimal test conditions were more than 0.99 under the optimal test conditions, and the linear range was similar to that of the spectrophotometric method, with the detection limit of 0.06% and the lower limit of 0.24%. The recoveries of 8 groups of parallel standard samples were 96%~103%, and the relative standard deviation was 2.26%, which indicated that the accuracy of this method was relatively high. Compared with the traditional method, this method is more simple and rapid, and its accuracy can meet the needs of conventional oil content measurement, which is expected to realise the rapid on?site determination of oil content of large?scale oil?containing sludge in plants.

Key words: Oily sludge, Picture colorimetry, Digital image, Quantitative determination

中图分类号: 

引用本文

冯恩临, 吴限, 邹尉婕, 李丽华. 基于抽提萃取⁃智能手机图片比色法的含油污泥含油率测定[J]. 石油化工高等学校学报, 2023, 36(4): 13-19.

Enlin Feng, Xian Wu, Weijie Zou, Lihua Li. Determination of Oil Content in Oily Sludge Based on Extraction and Smartphone Image Colorimetry[J]. Journal of Petrochemical Universities, 2023, 36(4): 13-19.

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