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Influence of combustion conditions on the PCDD/F-,PCB-,PCBz- and PAH-concentrations in the post-combustion chamber of a waste incineration pilot plant.
Chemosphere 40, 987-993 (2000)
xperiments at a pilot scale waste incinerator (0.5 MW thermal power) showed that the conditions in the postcombustion chamber (650-900 degrees C) are strongly influencing the formation of chlorinated and non-chlorinated aromatics. Non-optimal combustion conditions resulted in increased concentrations of mono- to trichlorinated dibenzo-p-dioxins (PCDD), dibenzofurans (PCDF) and polycyclic aromatic hydrocarbons (PAH), while chlorinated benzenes (PCBz), polychlorinated biphenyls (PCB) and the higher chlorinated PCDD/F are only weakly affected or even decrease. The changes in concentration of the compounds investigated over a time span of hours gave hints on 'memory effects' in this combustion zone. For mono- and dichlorinated benzenes, a high correlation (r(2) = 0.80) with the international toxicity equivalent (I-TEQ) value of PCDD/F was observed. As recently has been demonstrated, this correlation can be utilized for an indirect on-line measurement of the I-TEQ by a novel laser mass spectrometric technique (REMPI-TO-FMS).
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Waste incineration; Post combustions chamber; Flue gas; PCDD/F; I-TEQ; PCB; PCBz; PAH; Principle component analysis (PCA); Memory effects; Surrogate components; REMPI-TOFMS
Language
english
Publication Year
2000
HGF-reported in Year
0
ISSN (print) / ISBN
0045-6535
e-ISSN
1879-1298
Journal
Chemosphere
Quellenangaben
Volume: 40,
Issue: 9-11,
Pages: 987-993
Publisher
Elsevier
Publishing Place
Kidlington, Oxford
Reviewing status
Peer reviewed
Institute(s)
Institute of Ecological Chemistry (IOEC)
PSP Element(s)
G-505100-006
Erfassungsdatum
2000-12-31