生物废物堆肥系统的参数化,用于生命周期评估
Nomena Ravoahangy1, Guillaume Majeau-Bettez2, Olivier Schoefs3
1CIRAIG, Department of Chemical Engineering, Polytechnique Montréal, 2500 Chemin de Polytechnique, Montréal, QC H3T 0A3, Canada; TIMR, ESCOM, Université de Technologie de Compiègne, Centre de recherche Royallieu - CS 60 319 - F- 60 203, Compiègne Cedex, France.
Waste management (New York, N.Y.)
|January 16, 2026
概括
一个新的工具,环境评估的参数化堆肥工具 (PaCTEA),改善了生物废物堆肥的生命周期评估 (LCA). 它准确地模拟了排放和堆肥质量,揭示了被动通风和特定的生物废物成分,从而产生更好的环境结果.
科学领域:
- 环境科学 环境科学
- 生物技术是生物技术.
- 化学工程是化学工程的重要组成部分.
背景情况:
- 堆肥是一种关键的生物废物管理策略,使用生命周期评估 (LCA) 来评估环境影响.
- 现有的LCA模型往往过于简化复杂的堆肥过程,限制了准确的环境评估.
- 生物废物成分和运行参数显著影响堆肥结果.
研究的目的:
- 引入环境评估的参数化堆肥工具 (PaCTEA) 以改进生物废物堆肥LCA.
- 提高生物废物变异性和操作参数对环境影响影响的建模.
- 能够更准确地估计堆肥在替代肥料和泥炭方面的潜力.
主要方法:
- 开发了PaCTEA,集成了一个详细的堆肥模型与操作参数化.
- PaCTEA预测了直接排放 (CO2,NH3,CH4,N2O) 和堆肥的营养成分.
- 模拟的堆肥场景,变化生物废物成分,通风模式和环境温度.
主要成果:
- 生物废物组成的变化影响了生态系统质量 (减少了高达29%) 和自然资源 (减少了高达52%),同时增加了对人类健康的益处 (近9%).
- 被动通风显著优于主动通风,提高了生态系统质量 (高达175%) 和人类健康 (35%),同时减少了对资源的影响 (50%).
- 较低的温度 (5°C与25°C相比) 显示出混合的结果,增加了生态系统质量和资源影响,但减少了人类健康的益处.
结论:
- PaCTEA提供了一个更强大的工具来评估堆肥的环境足迹.
- 操作参数,如通风模式和温度,以及生物废物成分,极大地影响LCA结果.
- 优化这些因素可以显著提高生物废物堆肥对环境的好处.
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