Fate of PCDD/PCDF during mechanical-biological sludge treatment.
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).
Oleszek-Kudlak
Sylwia
S
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
Grabda
Mariusz
M
Czaplicka
Marianna
M
Rosik-Dulewska
Czeslawa
C
Shibata
Etsuro
E
Nakamura
Takashi
T
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
D001572:Benzofurans; D000072338:Dibenzofurans, Polychlorinated; D000072317:Polychlorinated Dibenzodioxins; D012722:Sewage; D012989:Soil Pollutants