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城市化对源隔离系统的影响:生命周期评估
Mathilde Besson1, Ligia Tiruta-Barna1, Etienne Paul1
1TBI, Université de Toulouse, CNRS, INRAE, INSA, 135 avenue de Rangueil, 31077 Toulouse CEDEX 04, France.
The Science of the total environment
|February 18, 2024
概括
尿源分离在各种城市环境中提供了环境效益,优于先进的废水处理厂. 然而,下水道基础设施对人口密度较低的地区产生影响,灰色水处理带来了能源挑战.
科学领域:
- 环境工程 环境工程
- 城市规划 城市规划
- 废水管理 废水管理
背景情况:
- 城市结构对选择合适的废水管理策略有重大影响.
- 资源分离系统为资源回收提供了潜力,但需要仔细考虑城市环境.
- 现有的先进的水资源回收设施 (WRRF) 专注于营养和有机物质的回收.
研究的目的:
- 评估不同城市结构对选择采用源分离的废水管理系统的影响.
- 为研究人员和城市规划人员提供指导,帮助他们为特定的城市环境选择最佳的源隔离解决方案.
- 将不同源隔离场景的环境性能与先进的WRRF进行比较.
主要方法:
- 采用综合建模方法来模拟各种城市规划场景.
- 生命周期评估 (LCA) 使用全面的生命周期库存进行.
- 评估了六个不同的城市配置,使用三个源隔离场景.
主要成果:
- 在所有测试的城市配置中,尿源分离显示出与先进的WRRF相比的环境优势.
- 下水道建设成为低密度 (亭子) 配置的主要环境负担,减少源隔离的好处.
- 分散的黑水分离仅在人口密集地区具有优势;灰水处理以重复使用由于能源需求而产生更高的环境影响.
结论:
- 尿源分离是不同城市密度的有利废水管理策略.
- 资源分离的环境可行性取决于城市形式,在人口密度较低的地区,基础设施的影响至关重要.
- 需要进一步的研究,以减少与灰色水处理和再利用系统相关的能源消耗.
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