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INVESTIGATION ON THE FORMATION POSSIBILITY OF PCDD/F BY SYNTHETIC REACTIONS FROM THEIR SURROGATES |
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Staff: |
Vladimír Církva, Lenka Slavětínská, Leona Vlková |
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Co-workers: |
Vladimír Pekárek, Eva Fišerová, Miroslav Punčochář, Jindřich Karban |
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External co-workers: |
Tomáš Ocelka, Roman Grabic, Tomáš Tomšej (Institute of public health Ostrava, National reference laboratory for POP, Frýdek-Místek) |
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Financing, funding: |
GACR (104/07/1212) Investigation on the formation possibility of PCDD/F by synthetic reactions from their surrogates
The project is directed toward a study of the synthetic reactions producing persistent organic pollutants of the type of PCDD and PCDF, with special emphasis on the conditions of formation of these substances in combustion plants. Investigation is focused on the formation possibility of PCDD/F from their surrogates. As the major proposed surrogates are chlorinated phenols and benzenes. The research is also oriented on the formation study of new PCDD/F intermediates and precursors on suitable solid supports from corresponding surrogates. Attention is paid to the effects of matrice and of copper metal forms with various physico-chemical properties on the course of the synthetic reactions. The experiments are designed to also permit a solution to a basic question, i.e., whether copper acts as a catalyst, or as a reaction component. The research results should contribute to initiation of further technical measures in combustion plants that would decrease PCDD/F emissions. |
What is PCDD/F?
PCDD/F is abbreviation for polychlorinated dibenzo-p-dioxines and dibenzofurans.
What are surrogates?
The surrogates (substitutes) are serving as easy measurable compounds to correlate PCDD/F concentrations at the fast control of incinerators. The major proposed surrogates are chlorinated benzenes, phenols, PCBs, PAHs and lower chlorinated dioxines and furans (i.e., mono-, di and tri-CDD/F).
What are formation reaction paths for PCDD/F from surrogates?
De novo- and precursor syntheses of PCDD/F formation
Solved problematics:
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Study on the formation of PCDD/F by synthetic reactions from their surrogates
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Study of formation of new PCDD/F intermediates and precursors on suitable solid supports
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Study of the effects of matrice and of copper metal forms on the course of the synthetic reactions
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Publications:
[1] Vlková, L.; Pekárek, V.; Pacáková, V.; Karban, J.; Bureš, M.; Štulík, K.: Chemosphere 56 (2004) 935-942. Dechlorination ability of municipal waste incineration fly ash for polychlorinated phenols.
[2] Vlková, L.; Církva, V.: Chem. Listy 99 (2005) 125-130. Chlorované fenoly a způsoby jejich degradace. (Chlorinated phenols and methods of their degradation)
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