Stack emissions tests in a brick manufacturing Hoffmann kiln: firing of municipal solid waste

This article reviews the results obtained from stack emissions analysis during the co-firing process of municipal solid waste (MSW) from the municipality of Tabio, Colombia, in a Hoffmann-type brick kiln. MSW (2 tonne) was incinerated and about 18.5 tonnes of clay were processed into brick using one...

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Bibliographic Details
Published in:Waste management & research 2010-07, Vol.28 (7), p.596-608
Main Authors: García Ubaque, C.A., Gonzales Hässig, A., Acosta Mendoza, C.
Format: Article
Language:English
Subjects:
Air Pollutants - analysis
Air Pollution
Building materials
Cadmium
Cities
Colombia
Confidence intervals
Construction Materials
Emission analysis
Emissions control
Incineration
Incineration - instrumentation
Incineration - methods
Kilns
Municipal solid waste
Refuse Disposal - methods
Solid wastes
Stack emissions
Statistical analysis
Studies
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Summary:This article reviews the results obtained from stack emissions analysis during the co-firing process of municipal solid waste (MSW) from the municipality of Tabio, Colombia, in a Hoffmann-type brick kiln. MSW (2 tonne) was incinerated and about 18.5 tonnes of clay were processed into brick using one and four kiln chambers, respectively. During the process, the following emissions were investigated: particulate emissions, emissions of SO2, SO3, NO X, metals (Sb, As, Cd, Co, Sn, Cr, Cu, Mn, Ni, Hg), hydrofluoric and hydrochloric acid, hydrocarbons (such as methane) and emission of polychlorinated dioxins and furans. Also, CO emissions were monitored during each test to evaluate the influence of MSW co-firing on that parameter. The observed emissions concentrations proved to be below the threshold values issued by MAVDT, the environmental authority in Colombia, indicating that the emissions were under control during the proposed process. In addition, statistical analysis showed that the emissions were 10—40% below the regulation limit with a confidence of 95%.
ISSN:0734-242X
1096-3669
DOI:10.1177/0734242X09357222