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  • Title: Formation of PCDDs and PCDFs during the combustion of polyvinylidene chloride.
    Author: Ohta M, Oshima S, Iwasa T, Osawa N, Kumatoriya K, Yamazaki A, Takasuga T, Matsushita M, Umedzu N.
    Journal: Chemosphere; 2001 Sep; 44(6):1389-94. PubMed ID: 11513117.
    Abstract:
    In laboratory-scale combustion of polyvinylidene chloride (PVDC) with a quartz tubular furnace designed and fabricated to provide the desired combustion temperature and mixing state of combustion gas with air, it was found that at 800 degrees C or higher the level of polychlorinated dibenzo-p-dioxins/polychlorinated dibenzofurans [corrected] (PCDDs/PCDFs) resulting from PVDC combustion was no higher than that from heating air alone, and thus far below the levels which resulted from PVDC combustion at 750 degrees C or lower. The results provide the first laboratory confirmation of the relation between PVDC incineration temperature and PCDD/PCDF formation, and of the primary importance of high temperature, turbulence for mixing between air and combustion gas, and sufficient residence time, as governing factors for the minimization of PCDD/PCDF formation in municipal solid waste incinerators.
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