6533b82bfe1ef96bd128d604

RESEARCH PRODUCT

Fate of PCDD/PCDF during mechanical–biological sludge treatment

Sylwia Oleszek-kudlakTakashi NakamuraEtsuro ShibataCzesława Rosik-dulewskaMariusz Grzegorz GrabdaMariusz Grzegorz GrabdaMarianna Czaplicka

subject

Polychlorinated DibenzodioxinsEnvironmental EngineeringHealth Toxicology and MutagenesisSewageWaste Disposal FluidBioreactorsSoil PollutantsEnvironmental ChemistryToxic equivalency factorBenzofuransSewagebusiness.industryChemistryPublic Health Environmental and Occupational HealthGeneral MedicineGeneral ChemistryDibenzofurans PolychlorinatedPollutionPcdd pcdfWaste treatmentWastewaterEnvironmental chemistrySewage sludge treatmentSewage treatmentbusinessSludge

description

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 16.9 ng I-TEQ kg −1 .

yearjournalcountryeditionlanguage
2004-08-19Chemosphere
https://doi.org/10.1016/j.chemosphere.2005.02.084