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Formation of polychlorinated dibenzo-p-dioxins (PCDD) and polychlorinated dibenzofurans (PCDF) during the combustion of impregnated wood

: Salthammer, T.; Klipp, H.; Peek, R.-D.; Marutzky, R.


Chemosphere 30 (1995), No.11, pp.2051-2060
ISSN: 0045-6535
ISSN: 0366-7111
Journal Article
Fraunhofer WKI ()
combustion; gaseous emission; imprägniertes Holz; impregnated wood; PCDD; PCDF; Verbrennung

Wood waste and industrial wood residues often contain various preservatives. The waste management can be combustion, deposition or recycling, but combustion seems to be the most efficient way of disposal. To obtain detailed information about emissions of organic compounds with environmental impact, especially polychlorinated dibenzo-p-dioxins (PCDD) and furans (PCDF), different impregnated wood materials were incinerated in two furnaces after mixing with non-treated wood in a ratio of 1:4. It was found that the concentrations of PCDD and PCDF in the exhaust gas can be kept low under good combustion conditions. However, a non-regular incineration process strongly supports increased emissions of PCDD and PCDF.