量化"零废物城市"试点的碳减排潜力:基于源减少-回收-处置框架的深的案例研究
Nini Zhang1, Wei Liu2, Jinhui Li1
1School of Environment, Tsinghua University, Beijing 100084, China; State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University, Beijing 100084, China.
Journal of environmental sciences (China)
|December 29, 2025
概括
中国的零废物城市试点项目通过改善固体废物管理,大幅减少温室气体排放. 深实现了排放量减少102%,展示了有效的源减排和回收战略.
科学领域:
- 环境科学 环境科学
- 气候变化缓解缓解 气候变化缓解
- 废物管理 废物管理
背景情况:
- 固体废物管理是温室气体排放的一个关键因素,但尚未得到充分研究.
- 中国的"零垃圾城市" (ZWC) 试点和碳峰值计划是关键的环境战略.
- 量化ZWC倡议的碳减排影响需要强大的方法.
研究的目的:
- 为固体废物管理提出碳排放会计方法.
- 评估深ZWC试点的碳减排影响.
- 在废物管理中确定减少温室气体排放的有效策略.
主要方法:
- 开发了一种基于源减少-回收-处置 (SRD) 框架的碳排放会计方法.
- 利用ZWC试点城市深作为分析的案例研究.
- 进行了场景分析,以预测未来的碳减排潜力.
主要成果:
- 深从2018年到2020年实现了固体废物排放量减少102% (从-0.06到-0.12CO2eq/废物).
- 预计到2035年,排放量可能会减少183% (-5.0CO2eq/废物).
- 废弃的有色金属和纸张提供了最大的碳减排潜力;减少来源和回收利用是最有效的策略.
结论:
- 开发的基于SRD的会计方法有效量化了固体废物管理中的碳减排.
- 深的ZWC试点显示了温室气体减排的巨大潜力.
- 调查结果支持制定政策,推动中国的ZWC倡议和气候目标.
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