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应用实用方法来选择合适的价值链,从二次原材料生产循环肥料
Lidia Paredes1, Elisa Gambuzzi2, Rita Gentili3
1Galician Water Research Center Foundation (Cetaqua Galicia), AquaHub - A Vila da Auga, Rúa José Villar 6 Granjel 33, Santiago de Compostela, 15890, Spain.
Open research Europe
|April 7, 2025
概括
欧洲需要可持续的肥料. 一种新的方法确定了来自城市废水,生物废物和其他来源的七个有希望的循环肥料价值链,为传统选择提供了替代方案.
科学领域:
- 农业科学 农业科学
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 全球人口增长增加了粮食需求,推动了欧洲对对环境有影响的传统肥料的依赖.
- 新兴的循环肥料价值链为传统农业投入提供了可持续的替代品.
研究的目的:
- 开发一种实用的方法来分析和选择最有前途的循环肥料价值链.
- 促进欧洲大规模生产和采用循环肥料.
- 减少对传统肥料的依赖,减轻它们对环境的影响.
主要方法:
- 一个两阶段的方法,包括一个道流程 (GO/NO-GO) 和一个评分系统.
- 从二次原料中确定48个价值链中的16个标准的评估.
- 基于七种原材料类型的价值链分类:城市废水 (UWW),工业废水 (IWW),污水污泥 (SS),生物废物 (BW),生物副产品 (BBP),处理过的 (TM) 和消化剂 (DIG).
主要成果:
- 道化过程将48个价值链减少到30个以供进一步分析.
- 评分系统将斯特鲁维特 (来自UWW和IWW),稳定污泥 (来自SS),堆肥生物废物 (来自BW),羽毛粉 (来自BBP),固体分量 (来自DIG) 和已使用的基板 (来自TM) 确定为表现最佳的选择.
- 这些选定的价值链显示出农业应用的巨大潜力.
结论:
- 开发的方法有效评估和选择有前途的循环肥料价值链.
- 七个特定的循环肥料价值链被确定为最适合在欧洲农业中推广的.
- 成功实施可以减少欧洲农业的环境足迹.
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