焚烧过程中的非故意持久性有机污染物:排放量,特征和库存
Rongrong Lei1, Yunchen He2, Wenbin Liu3
1School of Energy and Environmental Engineering, The University of Science and Technology Beijing, Beijing 100083, China.
The Science of the total environment
|April 22, 2024
概括
焚烧会无意释放持续性有机污染物 (UPOPs),汽车型炉的含量更高. 由于COVID-19,排放量在2021年增加了24%,这凸显了需要更好地控制污染.
科学领域:
- 环境化学:对无意持续性有机污染物 (UPOPs) 的分析.
- 环境科学:研究火葬过程中的排放.
- 公共卫生:评估火葬污染物对全球健康的影响.
背景情况:
- 全球火葬率正在上升,人们越来越担心相关的污染物排放.
- 无意持续有机污染物 (UPOPs) 是一个重要的环境问题.
- 了解火葬的UPOP对于环境和健康风险评估至关重要.
研究的目的:
- 调查火葬中UPOPs的水平,模式和排放因子.
- 为了比较不同炉型 (汽车型与平板) 之间的UPOP排放量.
- 评估污染控制装置的有效性和评估全球UPOPs排放.
主要方法:
- 在烟气和飞灰中测量多二二氧化物和二酸 (PCDD/F),多二 (PCB) 和多纳 (PCN) 的数量.
- 计算有毒等效 (TEQ) 度和排放因子.
- 2019年和2021年的全球排放评估,考虑到COVID-19大流行的影响.
主要成果:
- UPOPs度有显著的变化,在汽车型炉中观察到的平均水平更高.
- 二级室和空气污染控制装置有效地减少了UPOP,而热交换器效率较低.
- 在烟气和飞灰之间,UPOPs的配置不同,与2019年相比,2021年全球排放量增加了24%.
结论:
- 焚烧是UPOP的重要来源,受炉类型和控制技术的影响.
- 随着COVID-19大流行,火葬的全球UPOP排放受到重大影响.
- 进一步的研究和改进的排放控制策略是必要的,以减轻火葬的UPOPs.
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