Journal of Shandong University(Engineering Science) ›› 2026, Vol. 56 ›› Issue (2): 181-188.doi: 10.6040/j.issn.1672-3961.0.2024.298

• Environment Engineering • Previous Articles     Next Articles

Comparison on manual and automatic monitoring of greenhouse gases from fixed pollution sources in sewage treatment plants and waste incineration power plants

LIU Tiedong1, LIN Na1, XIE Tingting1, LENG Yaling1, YAO Tingting1, MA Zhitong1, ZHAO Hongxia2*   

  1. LIU Tiedong1, LIN Na1, XIE Tingting1, LENG Yaling1, YAO Tingting1, MA Zhitong1, ZHAO Hongxia2*(1. Shenzhen Academy of Metrology and Quality Inspection, Shenzhen 518107, Guangdong, China;
    2. School of Nuclear Science, Energy and Power Engineering, Shangdong University, Jinan 250061, Shangdong, China
  • Online:2026-04-20 Published:2026-04-13

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Abstract: In order to solve the monitoring difficulties of greenhouse gas emissions in industries such as sewage treatment plants and municipal waste incineration power plants, break the dependence of monitoring equipment performance indicators on foreign countries, and establish a traceability system for N2O and CH4 monitoring equipment, by manual monitoring and portable device, this article analyzed the differences in mass concentration of N2O and CH4 emissions through two methods: manual monitoring and portable device measurements. Results showed that, at three different locations in a typical wastewater treatment plant scenario, the differences in average mass concentrations were 8.66, 12.20, 0.75 mg/m3 for N2O, respectively, and 45.74, 64.30, 214.82 mg/m3 for CH4 respectively. The two measurement methods showed significant discrepancies. In typical scenarios of power plants, manual monitoring data showed little difference from that of online monitoring, but significant to portable device measurements, which was mainly due to the portable device being susceptible to temperature, humidity and mutual interference between different gases. Research on portable devices in terms of water vapor, high temperature, high humidity, and the coexistence of multiple gases should be strengthened to improve the accuracy of portable devices. Generally, manual monitoring was more accurate and reliable compared to other methods.

Key words: sewage treatment and power generation industry, greenhouse gases, mass concentration, manual monitoring, portable devices

CLC Number: 

  • X703
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