After recycle of spent materials has been optimized, a proportion of waste must be dealt with in the most environmentally friendly manner available.
For materials such as municipal waste, clinical waste, toxic waste and special wastes such as low radioactive wastes, incineration is often the most appropriate technology.
The study of incineration must take a process system approach covering the following aspects :
Collection and blending of waste,
The two stage combustion process,
Quenching, scrubbing and polishing of the flue gases,
Dispersion ofthe flue gases and disposal of any solid or liquid effluent.
The design of furnaces for burning a bed of material is being hampered by lack of an accurate mathematical model of the process, and some semi-empirical correlations have to be used at present.
The prediction of the incinerator gas phase flow is in a more advanced stage of development using computational fluid dynamics (CFD) analysis, although further validation data is still required.
Unfortunately, it is not possible to scale down many aspects of waste incineration, and tests on full scale incinerators are essential.
Thanks to a close relationship between SUWIC and Sheffield Heat & Power Ltd., an extended research program has been carried out at the Bernard Road Incinerator plant in Sheffield.
This plant consists of two Municipal (35 MW) and two Clinical (5 MW) Waste Incinerators which provide district heating for a large part of city. (...)
Mots-clés Pascal : Traitement déchet, Déchet urbain, Déchet hospitalier, Incinérateur, Usine incinération, Mécanique fluide numérique, Formation polluant, Cendre volante, Réutilisation, Impact environnement, Analyse risque
Mots-clés Pascal anglais : Waste treatment, Urban waste, Hospital waste, Incinerator, Incineration plant, Computational fluid dynamics, Pollutant creation, Fly ash, Reuse, Environment impact, Risk analysis
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 97-0224475
Code Inist : 001D16B02. Création : 11/06/1997.