title: Formation of PCDDs and PCDFs during the combustion of polyvinylidene chloride.
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.
authors.affiliation: Conference on Hygiene of Vinylidene Chloride Products, Tokyo, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Ohta
authors.forename: S
authors.initials: S
authors.lastname: Oshima
authors.forename: T
authors.initials: T
authors.lastname: Iwasa
authors.forename: N
authors.initials: N
authors.lastname: Osawa
authors.forename: K
authors.initials: K
authors.lastname: Kumatoriya
authors.forename: A
authors.initials: A
authors.lastname: Yamazaki
authors.forename: T
authors.initials: T
authors.lastname: Takasuga
authors.forename: M
authors.initials: M
authors.lastname: Matsushita
authors.forename: N
authors.initials: N
authors.lastname: Umedzu
mesh_terms: D001572:Benzofurans / Q000032:analysis*; D000072338:Dibenzofurans, Polychlorinated; D017745:Incineration; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives* / Q000737:chemistry*; D011143:Polyvinyl Chloride / Q000031:analogs & derivatives* / Q000737:chemistry*; D012037:Refuse Disposal; D012989:Soil Pollutants / Q000032:analysis*; D013696:Temperature
chemical_list: D001572:Benzofurans; D000072338:Dibenzofurans, Polychlorinated; D000072317:Polychlorinated Dibenzodioxins; D012989:Soil Pollutants; C029547:polyvinylidene chloride; D011143:Polyvinyl Chloride