使用材料流分析确定杆点,以循环利用来自城市废水和有机废物的资源
Gregory A Hatley1, Markus Pahlow2, Ricardo Bello-Mendoza2
1Institute of Environmental Science and Research, Christchurch, New Zealand.
Journal of environmental management
|August 30, 2024
概括
这项研究模拟了克莱斯特彻奇的城市物质流,揭示了海洋的大量营养损失. 识别废物和水系统中的杆点是实现资源循环性的关键.
科学领域:
- 环境科学 环境科学
- 城市的新陈代谢.
- 循环经济是一个循环经济.
背景情况:
- 人为系统中的线性经济导致资源浪费和环境破坏.
- 城市地区集中资源消耗和废物产生.
- 要过渡到循环系统,需要对材料流量有详细的了解.
研究的目的:
- 在城市有机废物和废水系统中建模材料和物质流 (,,碳).
- 将这个模型应用于新西兰的克赖斯特彻奇,作为一个案例研究.
- 在已识别的系统中确定资源循环化的杆点.
主要方法:
- 开发和应用本地级材料和物质流分析模型.
- 在废物和废水系统中量化,和碳流.
- 系统输入,输出和损失的识别.
主要成果:
- 地下水,透水和工业废水是主要的系统输入.
- 显著的 (~66%) 和 (~63%) 从克赖斯特彻奇的废水系统排入海洋.
- 堆肥可以回收一些营养物质,但挥发会导致气损失,填埋场处置不合适的废物.
结论:
- 克赖斯特彻奇的废水系统是线性经济的典范,有大量的营养损失.
- 供水泄漏和废水透减少了资源效率和营养恢复潜力.
- 针对食品废弃物,洗剂等特定流量,以及改善废水处理,为资源循环化提供了机会.
更多相关视频
16:33Methods for Facilitating Microbial Growth on Pulp Mill Waste Streams and Characterization of the Biodegradation Potential of Cultured Microbes
Published on: December 12, 2013
9.5K
08:49Vegetated Treatment Systems for Removing Contaminants Associated with Surface Water Toxicity in Agriculture and Urban Runoff
Published on: May 15, 2017
10.5K
相关概念视频
01:17Design Example: Analyzing Capacity Contours for Flood Risk Assessment
41
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
41
01:27Laminar Flow
1.0K
Laminar flow represents a smooth, orderly fluid motion where particles move along parallel paths, resulting in minimal mixing between layers. Streamlined particle paths characterize this flow regime and occur under conditions where viscous forces dominate over inertial forces. The distinction between laminar, transitional, and turbulent flow is primarily determined by the Reynolds number, a dimensionless quantity calculated as:
1.0K