title: Fate of PCDD/PCDF during mechanical-biological sludge treatment.
abstract: In this preliminary study the seventeen 2,3,7,8-substituted congeners of PCDD/PCDF were analyzed at the inlet and outlet water and for three sewage sludge samples taken from different treatment stages to check behaviours of PCDD/PCDF at a municipal wastewater treatment plant (MWTP) in Poland. At the inlet (untreated sewage) water dominated PCDD congeners, whereas in the outlet (treated water) dominated the PCDF congeners. The octaCDD, 1,2,3,4,6,7,8-heptaCDD/CDF and octaCDF congeners dominated in all of the sludge samples. The total toxicity load gradually increased in the series excess, digested and dewatered sludge and amounted to 12.2, 14.4 and 16.9ngI-TEQkg(-1).
authors.affiliation: Institute of Multidisciplinary Research for Advanced Materials, Research Center for Sustainable Materials Engineering, Tohoku University, 1, 1 Katahira, 2-Chome, Aobaku, Sendai, Miyagi 980-8577, Japan. galazka@mail.tagen.tohoku.ac.jp
authors.forename: Sylwia
authors.initials: S
authors.lastname: Oleszek-Kudlak
authors.forename: Mariusz
authors.initials: M
authors.lastname: Grabda
authors.forename: Marianna
authors.initials: M
authors.lastname: Czaplicka
authors.forename: Czeslawa
authors.initials: C
authors.lastname: Rosik-Dulewska
authors.forename: Etsuro
authors.initials: E
authors.lastname: Shibata
authors.forename: Takashi
authors.initials: T
authors.lastname: Nakamura
mesh_terms: D001572:Benzofurans / Q000032:analysis / Q000378:metabolism*; D019149:Bioreactors; D000072338:Dibenzofurans, Polychlorinated; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives* / Q000032:analysis / Q000378:metabolism; D012722:Sewage / Q000737:chemistry*; D012989:Soil Pollutants / Q000032:analysis / Q000378:metabolism*; D014865:Waste Disposal, Fluid
chemical_list: D001572:Benzofurans; D000072338:Dibenzofurans, Polychlorinated; D000072317:Polychlorinated Dibenzodioxins; D012722:Sewage; D012989:Soil Pollutants