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Insight into Greenhouse Gases Emissions and Energy Consumption of Different Full-Scale Wastewater Treatment Plants via ECAM Tool

Author

Listed:
  • Yuhe Tian

    (College of Marine and Environmental Sciences, Tianjin University of Science & Technology, Tianjin 300457, China
    Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China)

  • Shuang Liu

    (College of Marine and Environmental Sciences, Tianjin University of Science & Technology, Tianjin 300457, China)

  • Zheng Guo

    (College of Marine and Environmental Sciences, Tianjin University of Science & Technology, Tianjin 300457, China
    School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China)

  • Nan Wu

    (College of Engineering and Technology, Tianjin Agricultural University, Tianjin 300384, China)

  • Jiaqi Liang

    (College of Engineering and Technology, Tianjin Agricultural University, Tianjin 300384, China)

  • Ruihua Zhao

    (College of Marine and Environmental Sciences, Tianjin University of Science & Technology, Tianjin 300457, China)

  • Linlin Hao

    (College of Marine and Environmental Sciences, Tianjin University of Science & Technology, Tianjin 300457, China)

  • Ming Zeng

    (College of Marine and Environmental Sciences, Tianjin University of Science & Technology, Tianjin 300457, China)

Abstract

Greenhouse gas (GHG) production is one of the urgent problems to be solved in the wastewater treatment industry in the context of “carbon neutrality”. In this study, the carbon emissions and energy consumption of typical wastewater treatment processes in China were evaluated, starting from different cities and water treatment plants. Tool of Energy Performance and Carbon Emission Assessment and Monitoring (ECAM) was used. By comparing the influent BOD 5 , it was found that the energy consumption for wastewater treatment was positively correlated with the influent organic load. The annual CH 4 emission of Xi’an WWTP can reach 19,215 t CO 2 eq. Moreover, GHGs are closely related to the wastewater treatment process chosen. WWTP B of Kunming used only an anaerobic process without continuous aeration, with an average monthly energy consumption of 8.63 × 10 5 kW·h. The proportion of recoverable biogas was about 90% in the GHG discharged by the traditional process. However, the anaerobic digestion-thermoelectric cogeneration process can make the recovery of the biogas utilization ratio reach 100%. Compared to the Shuozhou WWTP and WWTP A of Kunming, the Strass WWTP served the smallest population and had the largest treatment capacity, reaching the lowest energy consumption, consuming only 23,670 kW·h per month. The evaluation and analysis of ECAM provide data support and research foundation for the wastewater treatment plants to improve energy utilization and reduce greenhouse gas emissions.

Suggested Citation

  • Yuhe Tian & Shuang Liu & Zheng Guo & Nan Wu & Jiaqi Liang & Ruihua Zhao & Linlin Hao & Ming Zeng, 2022. "Insight into Greenhouse Gases Emissions and Energy Consumption of Different Full-Scale Wastewater Treatment Plants via ECAM Tool," IJERPH, MDPI, vol. 19(20), pages 1-14, October.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:20:p:13387-:d:944427
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    References listed on IDEAS

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    1. Li Zhu & Chen Wang & Ning Huang & Yu Fu & Zhexing Yan, 2022. "Developing an Indicator System to Monitor City’s Sustainability Integrated Local Governance: A Case Study in Zhangjiakou," Sustainability, MDPI, vol. 14(9), pages 1-19, April.
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