相关实验视频

Updated: Jul 15, 2025

Separation and Identification of Conventional Microplastics from Farmland Soils

Separation and Identification of Conventional Microplastics from Farmland Soils

Published on: March 21, 2025

通过垃圾填埋采矿终止塑料废物泄漏的碳可行性:基于中国实践项目的案例研究

Mengqi Han¹, Yinglei Wu², Jian Sun³

¹Innovation Centre for Environment and Resources, Shanghai University of Engineering Science, No. 333 Long teng Road, Songjiang District, Shanghai 201620, China.

The Science of the total environment

|October 1, 2023

概括

在中国,对塑料废物 (PW) 的垃圾填埋采矿带来了重大的气候挑战. 机械和化学回收提供了最可行的碳解决方案来管理这些废物和减轻环境风险.

科学领域:

环境科学环境科学
气候变化研究气候变化研究
废物管理工程废物管理工程

背景情况:

中国在垃圾填埋场处置超过9亿的塑料废物,造成持续的环境风险.
垃圾填埋场采矿是一个潜在的解决方案,但需要能源密集型的过程,具有显著的气候影响.

研究的目的:

评估垃圾填埋场开采的碳可行性和中国的各种PW处理方法.
量化与消除垃圾填埋场PW泄漏相关的温室气体排放.
引导利益相关者平衡废物管理与气候行动目标.

主要方法:

试点规模填埋场采矿项目的生命周期评估 (LCA).
挖掘,分类和处理过程 (焚烧,机械回收,化学回收) 产生的碳排放的分析.
考虑电力部门脱碳场景的未来碳影响的预测.

主要成果:

焚烧与发电导致每废物产生134.10公斤的二氧化碳等值,预计到2050年将增加一倍.
通过焚烧完全消除PW可以产生2457.66Mt的CO2-eq,占中国2020年排放量的17.69%.
机械和化学回收的组合是最可行的碳方法,尽管化学回收面临着工业的不确定性.

结论:

用于塑料废物管理的垃圾填埋场采矿带来了重大的气候变化挑战.
机械和化学回收的结合为碳中和废物管理提供了最有希望的途径.
化学回收的进一步发展和工业应用对于有效的塑料废物减排至关重要.

关键词:

年长的拒绝拒绝我们的碳足迹脱碳化是指去碳化.在垃圾填埋场开采采矿业.塑料废弃物塑料废弃物分析物质流量分析

更多相关视频

Isolation of Native Soil Microorganisms with Potential for Breaking Down Biodegradable Plastic Mulch Films Used in Agriculture

Isolation of Native Soil Microorganisms with Potential for Breaking Down Biodegradable Plastic Mulch Films Used in Agriculture

Published on: May 10, 2013

Forming Micro-and Nano-Plastics from Agricultural Plastic Films for Employment in Fundamental Research Studies

Forming Micro-and Nano-Plastics from Agricultural Plastic Films for Employment in Fundamental Research Studies

Published on: July 27, 2022

相关概念视频

Environmental Applications of Microorganisms

Environmental Applications of Microorganisms

Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...

Bioremediation

Bioremediation

Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.