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| 厨余垃圾厌氧消化沼渣与物流垃圾混合燃烧过程气体污染物排放特性研究 |
| Gaseous pollutants emission characteristics during the co-combustion of food waste-derived anerobic digestates and waste logistics packaging |
| 投稿时间：2025-07-22 |
| DOI：10.13259/j.cnki.eri.2025.03.007 |
| 中文关键词: 聚乙烯|纸板|交互作用|HCl|NO|SO2 |
| 英文关键词:polyethylene cardboard interaction HCl NO SO2 |
| 基金项目: |
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| 中文摘要: |
| 焚烧是实现城市有机固废减容减量的有效途径。厨余垃圾厌氧消化产生的沼渣水分和灰分含量高，热值低，易出现燃烧不稳定及结焦结渣问题；而物流垃圾中纸板和聚乙烯具有高热值、低灰分特征，与沼渣混合燃烧有望改善其燃烧特性，但需关注混合燃烧过程中HCl、NO和SO2等气体污染物的排放规律。考察了燃烧温度、纸板和聚乙烯质量分数对燃烧过程中HCl、NO和SO2排放特性的影响。结果表明：较高的燃烧温度会促进HCl和SO2释放，但会使NO浓度降低。混合燃烧过程中存在的交互作用会促进HCl排放；添加聚乙烯会促进NO和SO2等气态污染物生成。工程实践中应注意控制聚乙烯掺烧比例。研究结果可为沼渣和物流垃圾的清洁协同焚烧提供理论参考。 |
| 英文摘要: |
| Incineration is a promising way for the volume reduction of municipal organic waste. Food waste-derived anaerobic digestate (AD) contains high moisture, abundant ash, and low calorific value, unstable combustion and severe slagging and fouling always occur during combustion. Co-combustion of AD with high-calorific value and low-ash cardboard (CB) and polyethylene (PE) from waste logistics packaging can improve its combustion performance effectively. However, the gaseous pollutants emission characteristics such as HCl, NOx, and SO2 are crucial for their clean incineration. The influence of combustion temperature, CB blending ratio, and PE blending ratio on the gaseous pollutants emissions during the combustion process was examined. Results indicate that higher combustion temperature enhances the emissions of HCl and SO2 while it reduces NO emission. The co-combustion process of AD, CB, and PE releases more HCl due to the interaction. Adding PE favors the formation of gaseous pollutants such as NO and SO2. It is critical to control PE blending ratio in the practical project. This work can provide a theoretical reference for the clean co-incineration of AD and waste logistics packaging. |
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