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生命周期评估应用于从生物废弃物中生产高质量的土壤修饰剂

Francesco Arfelli¹, Daniele Cespi², Luca Ciacci²

¹Department of Industrial Chemistry "Toso Montanari", University of Bologna, via Piero Gobetti 85, 40129 Bologna, Italy.

Waste management (New York, N.Y.)

|November 4, 2023

概括

本研究介绍了一种创新的系统,将农业和畜牧业废物转化为高质量的土壤调节剂. 该过程能自给自足,并提供显著的环境效益,与传统方法相比减少碳排放.

科学领域:

环境科学环境科学
废物管理废物管理
可持续农业可持续农业

背景情况:

快速的城市化和工业化导致全球固体废物产生增加.
有机废物是城市固体废物的重要组成部分,为价值化提供了机会.
开发有机废物管理的可持续解决方案至关重要.

研究的目的:

评估一个创新的系统的环境性能,将农业和畜牧业废物转化为高质量的土壤调节剂.
评估拟议系统的能源自给自足和发电能力.
将土壤调节剂对环境的影响与替代情景进行比较.

主要方法:

使用生命周期评估 (LCA) 来评估环境影响.
该系统整合了无氧消化和废物处理的生物堆肥.
无氧消化燃料光伏和热电联产厂产生的沼气.

主要成果:

该系统产生了类似泥炭的土壤调节剂,具有高碳含量,多孔性和水能力.
综合能源发电厂使该系统自给自足,每年产生1177兆瓦时的余.
与替代品相比,土壤调节剂在18个影响类别中的15个环境性能优越.
实现了显著的碳节约:397公斤二氧化碳eq/与泥炭和传统废物管理相比,165公斤二氧化碳eq/与生物甲升级相比.

结论:

开发的系统为有机废物提供了一个环境可持续和可再生的价值化战略.
高质量的土壤调节剂为泥炭提供了可行的替代品,带来了更大的环境效益.
这种方法有效地将废物转化为可用于能源和土壤调节的有价值资源.

关键词:

农业废弃物农业废弃物生物废弃物价值化生物废物价值化循环经济是一个循环经济.生命周期思考生命周期思考微生物堆肥是一种微生物堆肥.

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