Fate of PCDD/PCDF during mechanical-biological sludge treatment

Chemosphere. 2005 Oct;61(3):389-97. doi: 10.1016/j.chemosphere.2005.02.084. Epub 2005 Apr 19.

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).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Benzofurans / analysis
  • Benzofurans / metabolism*
  • Bioreactors
  • Dibenzofurans, Polychlorinated
  • Polychlorinated Dibenzodioxins / analogs & derivatives*
  • Polychlorinated Dibenzodioxins / analysis
  • Polychlorinated Dibenzodioxins / metabolism
  • Sewage / chemistry*
  • Soil Pollutants / analysis
  • Soil Pollutants / metabolism*
  • Waste Disposal, Fluid

Substances

  • Benzofurans
  • Dibenzofurans, Polychlorinated
  • Polychlorinated Dibenzodioxins
  • Sewage
  • Soil Pollutants