Document Detail


Perspectives and limits for cement kilns as a destination for RDF.
MedLine Citation:
PMID:  18248807     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
RDF, the high calorific value fraction of MSW obtained by conventional separation systems, can be employed in technological plants (mainly cement kilns) in order to obtain a useful energy recovery. It is interesting and important to evaluate this possibility within the general framework of waste-to-energy solutions. The solution must be assessed on the basis of different aspects, namely: technological features and clinker characteristics; local atmospheric pollution; the effects of RDF used in cement kilns on the generation of greenhouse gases; the economics of conventional solid fuels substitution and planning perspectives, from the point of view of the destination of RDF and optimal cement kiln policy. The different experiences of this issue throughout Europe are reviewed, and some applications within Italy are also been considered. The main findings of the study are that the use of RDF in cement kilns instead of coal or coke offers environmental benefits in terms of greenhouse gases, while the formation of conventional gaseous pollutants is not a critical aspect. Indeed, the generation of nitrogen oxides can probably be lower because of lower flame temperatures or lower air excess. The presence of chlorinated micro-pollutants is not influenced by the presence of RDF in fuel, whereas depending on the quality of the RDF, some problems could arise compared to the substituted fuel as far as heavy metals are concerned, chiefly the more volatile ones.
Authors:
G Genon; E Brizio
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Publication Detail:
Type:  Journal Article     Date:  2008-01-08
Journal Detail:
Title:  Waste management (New York, N.Y.)     Volume:  28     ISSN:  0956-053X     ISO Abbreviation:  Waste Manag     Publication Date:  2008 Nov 
Date Detail:
Created Date:  2008-09-04     Completed Date:  2009-02-26     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9884362     Medline TA:  Waste Manag     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2375-85     Citation Subset:  IM    
Affiliation:
Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy.
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MeSH Terms
Descriptor/Qualifier:
Air Pollutants / analysis*
Air Pollution* / prevention & control
Calorimetry
Cermet Cements*
City Planning / standards
Coal*
Environmental Pollution / prevention & control
Equipment Design
Gases / analysis
Greenhouse Effect
Humans
Hydrocarbons, Chlorinated / analysis
Incineration / instrumentation,  methods*
Italy
Seasons
Static Electricity
Chemical
Reg. No./Substance:
0/Air Pollutants; 0/Cermet Cements; 0/Coal; 0/Gases; 0/Hydrocarbons, Chlorinated

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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