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<p>Sanitary landfill is a widely used municipal solid waste (MSW) treatment method worldwide. However, existing research on greenhouse gas (GHG) emissions accounting for sanitary landfills is insufficiently detailed, resulting in lagging development of GHG reduction strategies and measures. This study proposes a comprehensive life-cycle GHG emissions accounting framework that incorporates material transformation laws and energy conversion processes to evaluate the GHG emissions and reductions of sanitary landfills. The potential for achieving carbon neutrality in well-managed sanitary landfills is also explored. Key findings include: (1) Methane from uncollected landfill gas (LFG) is the largest contributor to GHG emissions, accounting for 89.8% of the total emissions. (2) The LFG collection rate is identified as the most critical factor influencing GHG emissions. (3) A well-managed sanitary landfill has the potential to achieve carbon neutrality or even negative. The proposed framework offers an effective approach for accounting GHG emissions and exploring the carbon neutrality potential of sanitary landfills.</p> Graphical Abstract <p></p>

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Life-Cycle Greenhouse Gas Emissions Accounting for Sanitary landfills – a Case Study of a Typical Sanitary Landfill in Hangzhou, China

  • 期刊论文

  • 发表日期：

    2025年12月23日

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  • Shuai Zhang,
  • Kai Liu,
  • Xuyang Huang,
  • He Li,
  • Wenjie Xu,
  • Yuzhong Zhang,
  • Guangyao Li,
  • Liangtong Zhan,
  • Jiwu Lan,
  • Yunmin Chen

摘要

Sanitary landfill is a widely used municipal solid waste (MSW) treatment method worldwide. However, existing research on greenhouse gas (GHG) emissions accounting for sanitary landfills is insufficiently detailed, resulting in lagging development of GHG reduction strategies and measures. This study proposes a comprehensive life-cycle GHG emissions accounting framework that incorporates material transformation laws and energy conversion processes to evaluate the GHG emissions and reductions of sanitary landfills. The potential for achieving carbon neutrality in well-managed sanitary landfills is also explored. Key findings include: (1) Methane from uncollected landfill gas (LFG) is the largest contributor to GHG emissions, accounting for 89.8% of the total emissions. (2) The LFG collection rate is identified as the most critical factor influencing GHG emissions. (3) A well-managed sanitary landfill has the potential to achieve carbon neutrality or even negative. The proposed framework offers an effective approach for accounting GHG emissions and exploring the carbon neutrality potential of sanitary landfills.

Graphical Abstract