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An emergy based sustainability evaluation on a combined landfill and LFG power generation system

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  • Pan, Hengyu
  • Geng, Yong
  • Jiang, Ping
  • Dong, Huijuan
  • Sun, Lu
  • Wu, Rui

Abstract

Recovering the landfill gas from municipal solid wastes for power generation is one feasible approach to respond both climate change and resource depletion issues. Under such a circumstance, it is important to evaluate the overall performance of its production process. This study proposes an integrated evaluation method by integrating emergy analysis and eco-indicator 99 method. Key impact factors influencing the sustainability are uncovered by adopting Kaya identity and index decomposition analysis (IDA). One MSW treatment plant in Yunnan province of China was selected as one case study site. The results indicate that the overall performance of the MSW treatment plant has been improved after operating a power generation system. The emissions' impact has been reduced by 56.85% and 2.44gCO2eq has been offset when generating 109sej of electricity. However, the low economic benefit, the increase of nonrenewable empower density and the low investment effectiveness are still key factors that hinder its sustainability. In order to address these issues, several suggestions are raised by considering the local realities.

Suggested Citation

  • Pan, Hengyu & Geng, Yong & Jiang, Ping & Dong, Huijuan & Sun, Lu & Wu, Rui, 2018. "An emergy based sustainability evaluation on a combined landfill and LFG power generation system," Energy, Elsevier, vol. 143(C), pages 310-322.
    • Handle: RePEc:eee:energy:v:143:y:2018:i:c:p:310-322
    DOI: 10.1016/j.energy.2017.10.144
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    Cited by:

    1. Dianfa Wu & Zhiping Yang & Ningling Wang & Chengzhou Li & Yongping Yang, 2018. "An Integrated Multi-Criteria Decision Making Model and AHP Weighting Uncertainty Analysis for Sustainability Assessment of Coal-Fired Power Units," Sustainability, MDPI, vol. 10(6), pages 1-27, May.
    2. Junxue Zhang & Lin Ma, 2021. "Urban ecological security dynamic analysis based on an innovative emergy ecological footprint method," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 23(11), pages 16163-16191, November.
    3. Clasen, Arno P. & Agostinho, Feni & Sulis, Federico & Almeida, Cecília M.V.B & Giannetti, Biagio F., 2024. "Unlocking the potential of municipal solid waste: Emergy accounting applied in a novel biorefinery," Ecological Modelling, Elsevier, vol. 492(C).

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