大学化学 >> 2025, Vol. 40 >> Issue (2): 89-96.doi: 10.12461/PKU.DXHX202409005

所属专题： 教学型仪器的研制&改进与实验教学

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BOD-Q水质测定仪的研制及其实验教学应用

宋诚, 王厦, 刘鸿   

  1. 中国科学院重庆绿色智能技术研究院, 重庆 400714
  • 收稿日期:2024-09-03 录用日期:2024-10-22 发布日期:2025-02-22
  • 通讯作者: 刘鸿 E-mail:liuhong@cigit.ac.cn
  • 基金资助:
    中科院青促会(E2296208)

Development of the BOD-Q Water Quality Analyzer and Its Application in Laboratory Teaching

Cheng Song, Sha Wang, Hong Liu   

  1. Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
  • Received:2024-09-03 Accepted:2024-10-22 Published:2025-02-22
  • Contact: Hong Liu E-mail:liuhong@cigit.ac.cn

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摘要： 生化需氧量(BOD)是水污染控制领域科学研究中关键的数据指标。传统BOD基于溶氧耗量的检测方法，具有测试周期长、结果误差大、重现性差、操作复杂等问题，严重制约着水环境水生态领域的发展和实验教学的应用。本文提出一种BOD检测的新原理、新方法、新仪器，阐述了一项原始创新科学仪器——“BOD-Q水质测定仪”的研制及其实验教学应用，结果表明，该仪器将BOD检测时间从传统的5天缩短至0.5-5小时，检测误差≤10%，将该仪器引入实验教学中可丰富教学内容，提高教学质量。

关键词: BOD, 微生物库伦法, BOD-Q水质测定仪, 原始创新科学仪器, 实验教学

Abstract: Biochemical oxygen demand (BOD) is a critical indicator in scientific research related to water pollution control. The traditional BOD testing method, based on dissolved oxygen consumption, has several disadvantages, including a long testing period, significant errors, poor reproducibility, and complex procedures, which hinder the advancement of water environment and ecology research as well as its application in experimental teaching. This paper presents a new principle, method, and instrument for BOD detection, detailing the development of an innovative scientific instrument—the “BOD-Q Water Quality Analyzer”—and its application in laboratory teaching. The results indicate that this instrument reduces the BOD detection time from the conventional 5 days to just 0.5 to 5 hours, with a detection error of less than 10%. Integrating this instrument into laboratory teaching enriches the curriculum and enhances teaching quality.

Key words: Biochemical oxygen demand (BOD), Microbial coulometric method, BOD-Q water quality analyzer, Original innovative scientific instruments, Laboratory teaching