Journal
JOURNAL OF CLEANER PRODUCTION
Volume 362, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2022.132363
Keywords
Handling Editor; Zhen Leng; Organic waste; Smouldering combustion; Flaming combustion; Airflow velocity
Categories
Funding
- National Natural Science Foundation of China (NSFC) [51876183]
- ZJU SKLCEU Open Fund [2018012]
- Sichuan Science and Technology Program [2019YFSY0040]
- Society of Fire Protection Engineers (SFPE) Educational & Scientific Foundation
Ask authors/readers for more resources
This study applies a newly developed smouldering-based waste removal technology to purify smouldering emissions using a flame, reducing CO and VOCs emission significantly. It enriches strategies for the clean treatment of smouldering emissions and promotes an energy efficient and environmentally friendly method for organic waste removal.
Smouldering is slow, low-temperature and flameless, and has been potentially regarded as an alternative for organic waste removal technology. However, as an incomplete combustion process, toxic smoke and pollution from the smouldering are significant concerns that limit its popularization. This work applies a newly developed smouldering-based waste removal technology to investigate the removal of coffee waste, wood waste, and organic soil (simulated sludge) via using a flame to clean smouldering emissions at different airflow velocities (3-24 mm/s). Once ignited from the top, the smouldering front first propagates downwards where a stable flame situated above could be piloted and sustained to purify the smouldering emissions until the smouldering front reached the bottom of the fuel bed. The efficiency of pollution mitigation was demonstrated by significantly lower CO and VOCs emission after purification by self-sustained flame. The equivalent critical mass flux of flammable gases required for igniting the smouldering emissions is 0.5 g/m2 center dot s, regardless of the fuel type. The smouldering temperature, propagation rate and burning flux all increase with the airflow velocity but are also slightly sensitive to the type of waste. This work enriches strategies for the clean treatment of smouldering emissions and promotes an energy efficient and environmentally friendly method for organic waste removal.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available