为什么可回收材料回收设施在经济上不能自给自足? 基于巴西单位数据的技术,财务和社会分析
Igor Matheus Benites1, Júlia Fonseca Colombo Andrade1, Ana Teresa Rodrigues de Sousa1
1Department of Hydraulic Engineering and Sanitation, São Carlos School of Engineering, Solid Waste Research Center (NEPER), University of São Paulo, São Carlos, SP, Brazil.
概括
这项关于巴西材料回收设施 (MRF) 的研究发现了显著的性能差异. 可持续的MRF运营需要提高效率,创新融资和支持性政策,以获得长期成功.
科学领域:
- 环境科学 环境科学
- 废物管理 废物管理
- 循环经济是一个循环经济.
背景情况:
- 材料回收设施 (MRF) 对废物管理和回收至关重要.
- 了解MRF的运营和财务绩效是提高回收率的关键.
- 巴西MRF在运营效率和财务可持续性方面面临着独特的挑战.
研究的目的:
- 评估12个巴西MRF的运营,财务和社会/劳动绩效.
- 开发和应用一个分析框架,用13个指标来评估MRF的表现.
- 确定影响MRF生产率,成本,收入和劳动力指标的因素.
主要方法:
- 利用了来自巴西4个地区的12个MRF的月度数据 (2024年数据).
- 开发并应用了13个指标的绩效评估分析框架.
- 进行统计分析以探索性能指标之间的关系.
主要成果:
- 在MRF的生产率和每批加工的成本 (每11.13-41.08美元) 中存在显著的变化.
- 高员工流动率 (17-81%) 对成本和效率产生了负面影响;劳动力成本占主导地位.
- 大多数MRF依赖补贴,只有两个实现了超过70%的财务自给自足.
结论:
- 对于MRF的可持续性,需要进行运营改进和创新的融资 (例如,服务费,EPR).
- 有效的政策对于技术效率,社会公平和收入稳定至关重要.
- 拟议的指标作为标准化MRF绩效评估的全球关键绩效指标 (KPIs).
相关概念视频
01:43Sustainable Development
15.1K
As the human population continues to grow and use resources, we must be mindful of our planet’s natural limits. Sustainable development provides a pathway to maintain and improve human life now while also ensuring that future generations will have the resources that they need. The long-term success of sustainability efforts rests on understanding the interplay between human actions and ecological systems.
15.1K
00:52Social Proof
32.4K
Social proof is a form of persuasion based on comparison and conformity. People compare their behavior and actions to what others are doing and will change to conform to do what their peers do.
32.4K
02:06Social Exchange Theory
40.8K
We have discussed why we form relationships, what attracts us to others, and different types of love. But what determines whether we are satisfied with and stay in a relationship? One theory that provides an explanation is social exchange theory. According to social exchange theory, we act as naïve economists in keeping a tally of the ratio of costs and benefits of forming and maintaining a relationship with others (Rusbult & Van Lange, 2003).
40.8K
02:10Social Scripts
10.3K
People tend to know what behavior is expected of them in specific, familiar settings. A script is a person’s knowledge about the sequence of events expected in a specific setting (Schank & Abelson, 1977). Essentially, scripts are a particular kind of schema, one containing default values for the features within an event. In the restaurant example, the script's features include the props (e.g., tables, menu, food, and money), the roles to be played (e.g., customer and waiter),...
10.3K
03:38Measurement: Standard Units
79.6K
Every measurement provides three kinds of information: the size or magnitude of the measurement (a number), a standard of comparison for the measurement (a unit), and an indication of the uncertainty of the measurement. While the number and unit are explicitly represented when a quantity is written, the uncertainty is an aspect of the errors in the measurement results.
79.6K
01:41Social Traps
26.9K
Social traps are negative situations where people get caught in a direction or relationship that later proves to be unpleasant, with no easy way to back out of or avoid. The concept was orignally introduced by John Platt who applied psychology to Garrett Hardin's "Tragedy of the Commons", where in New England herd owners could let their cattle graze in the common ground. This situation seems like a good idea, but an individual could have an advantage. If they owned...
26.9K