识别了从复杂的工程联合燃烧中得到量化伪元件调节的等级性有毒污染物的选
Yue Zhang1, Jing Meng1, Guijin Su1
1Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
垃圾的共同燃烧,尤其是含有高塑料的垃圾,会增加有害污染物. 优化废物成分是减少这种处理方法造成的污染风险的关键.
科学领域:
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
- 废物管理 废物管理
背景情况:
- 工业和城市固体废物的联合燃烧是一种有前途的处置技术.
- 废物的复杂性往往掩盖了在联合燃烧过程中产生的未知污染物的产生.
研究的目的:
- 通过大规模实验,研究共燃对污染物产生的影响.
- 评估不同废物成分,特别是塑料对飞灰分子特性和毒性的影响.
主要方法:
- 在650t/d的焚烧炉中进行了六次大规模的联合燃烧实验.
- 采用伪成分矩阵模型分析生物质和塑料废物流中的9个组件.
- 在飞灰中选了953-1772种非目标化合物.
主要成果:
- 与生物质共同燃烧对污染物形成的影响最小.
- 塑料共同燃烧的高比率显著增加了不和碳化合物 (1949%),高度不和化合物 (1731%) 和循环化合物 (727%).
- 聚乙烯二甲 (PET) 的共同燃烧产生了更广泛的多种污染物,包括新的毒性物质.
结论:
- 由于污染物形成的增加,高比例的共燃塑料对环境构成重大风险.
- 识别特定的有毒物质,以前被忽视,突出需要谨慎的废物流管理.
- 调整废物成分可以实现更健康,更安全的共同燃烧过程,以减少污染.
更多相关视频
07:24Combustion Chemistry of Fuels: Quantitative Speciation Data Obtained from an Atmospheric High-temperature Flow Reactor with Coupled Molecular-beam Mass Spectrometer
Published on: February 19, 2018
11:19Measuring Carbon-based Contaminant Mineralization Using Combined CO2 Flux and Radiocarbon Analyses
Published on: October 21, 2016
相关概念视频
Toxic Reactions: Overview
Toxicity falls into two primary categories: local and systemic.
Local toxicity appears at the exposure site, such as protein denaturation caused by caustic substances.
In contrast, systemic toxicity requires the toxic agent's absorption and distribution,...
Types of Toxins
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
Bioremediation
Atomic Emission Spectroscopy: Interference
Gas Chromatography: Types of Detectors-II
