在中国的MSW焚烧厂中,对超低排放技术的生命周期评估
Jiangwei Zhang1, Ming Zhang2, Junxiao Wei1
1School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China.
Waste management (New York, N.Y.)
|October 1, 2025
概括
在中国,用于城市固体废物焚烧的先进空气污染控制技术增加了能源消耗,可能会造成更大的环境影响. 传统系统的整体环境潜力低于超低排放改造.
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:
- 城市固体废物 (MSW) 焚烧在中国很普遍.
- 更严格的排放标准推动了对超低排放 (ULE) 的先进空气污染控制 (APC) 技术的采用.
- 由于资源消耗增加,ULE技术可能会带来环境权衡.
研究的目的:
- 评估ULE技术与中国MSW焚烧中的传统APC系统之间的环境权衡.
- 为了比较不同APC配置的生命周期环境影响.
主要方法:
- 应用了生命周期评估 (LCA) 方法.
- 根据每烧毁的MSW,制定了三个工艺库存:传统 (APCDs1),ULE首先采用选择性催化降解 (APCDs2) 和ULE首先采用湿 (APCDs3).
- 用脚印方法版本3.1来评估环境影响.
主要成果:
- 传统的APC系统 (APCDs1) 显示出整体环境影响潜力最低.
- ULE系统,APCDs3和APCDs2,显示出更高的环境影响潜力.
- 来自ULE系统的全球变暖潜力增加往往抵消了其他影响类别的好处.
结论:
- 复杂,资源密集型的ULE改造可能并不像最初认为的那样可持续.
- 优先考虑短期流程,共同控制污染技术可以提供更平衡的环境性能.
- 调查结果支持在中国为可持续的MSW焚烧提供明智的技术选择和政策制定.
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