公共废物的组成 - - 来自奥地利的案例研究
Veronika Kladnik1, Sabine Dworak1, Therese Schwarzböck1
1Institute for Water Quality and Resource Management, Technische Universität Wien (TU Wien), Karlsplatz 13/226, 1040 Vienna, Austria.
Waste management (New York, N.Y.)
|February 26, 2024
概括
街道和公园的公共废物是一个未开发的资源. 这项研究发现,公共废物中52%是可回收的,这突显了改善废物管理和回收计划的潜力.
科学领域:
- 环境科学 环境科学
- 废物管理 废物管理
- 城市规划 城市规划
背景情况:
- 公共空间产生了大量,但尚未研究的废物流.
- 关于公众场所 (如公园和人行道) 垃圾的数量和成分的数据有限.
- 有效的废物管理规划需要详细描述这种废物流.
研究的目的:
- 评估奥地利一个中型城市公共垃圾的质量和数量.
- 为公共废物开展详细的废物表征活动.
- 为资源潜力评估和废物管理战略提供数据基础.
主要方法:
- 在整个城镇 (人口25000人) 进行了全面的抽样活动.
- 将近1000公斤的废物分类成多达88个不同的碎片.
- 分析了成分,重点是包装废物和一次性塑料.
主要成果:
- 公共废物约占城市固体废物的2.6%,平均每人每年4.1公斤.
- 大约52%的公共废物包括可回收材料 (玻璃,金属,纸张,轻质包装).
- 包装废物占总量的44%,其中狗便 (18%) 和生物废物 (17%) 也是重要的组成部分.
结论:
- 公共废物中含有很高比例的有价值的可回收材料,这表明了大量尚未开发的资源潜力.
- 目前的收集方法,主要是混合废物,导致可回收材料的损失.
- 这些发现为决策者和地方当局提供了关键数据,以制定针对公共空间废物管理和回收利用的有针对性的战略.
相关概念视频
03:35Classifying Matter by Composition
71.2K
Matter: Pure Substances and Mixtures
According to its composition, the matter can be classified into two broad categories — pure substances and mixtures.
A pure substance is a form of matter that has a constant composition throughout with uniform properties. For example, any sample of sucrose has the same composition and same physical properties, such as melting point, color, and sweetness, regardless of the source from which it is isolated.
A mixture is composed of two or...
According to its composition, the matter can be classified into two broad categories — pure substances and mixtures.
A pure substance is a form of matter that has a constant composition throughout with uniform properties. For example, any sample of sucrose has the same composition and same physical properties, such as melting point, color, and sweetness, regardless of the source from which it is isolated.
A mixture is composed of two or...
71.2K
01:08Sample Preparation for Analysis: Advanced Techniques
343
Accurate analysis of complex samples often requires advanced preparation techniques to achieve reliable and reproducible results. Samples containing inorganic or organic materials can be challenging to dissolve or decompose effectively. Standard sample preparation methods include acid digestion, fusion, dry ashing, and wet digestion.
Acid digestion with strong acids is commonly used to dissolve inorganic materials that are insoluble (do not dissolve) in water. This method can be useful for...
Acid digestion with strong acids is commonly used to dissolve inorganic materials that are insoluble (do not dissolve) in water. This method can be useful for...
343