Journal
SCIENCE OF THE TOTAL ENVIRONMENT
Volume 297, Issue 1-3, Pages 105-108Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0048-9697(02)00091-8
Keywords
7-ethoxyresorufin o-deethylase (EROD); bioassay; sludge; dioxin; degradation; waste
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The fate of 7-ethoxyresorufin O-deethylase (EROD)-inducing compounds in source-separated organic household waste subject to anaerobic degradation (i.e. mesophilic/thermophilic anaerobic treatment) was investigated using organ cultures of embryonic chicken livers from fertilised hen eggs. This bioassay reflects the combined effect of all EROD-inducing, possibly dioxin-like compounds in a sample, including chemicals that are seldom or never analysed. All samples tested induced EROD in the bioassay, indicating the presence of dioxin-like compounds. In the anaerobic processes, the amounts of acid-resistant EROD-inducing compounds coming out of the reactors were considerably higher than the incoming amounts, especially for the low-temperature (mesophilic) process. This apparent production of EROD-inducing compounds may be due to de novo synthesis or to an increase in the EROD-inducing potency of the compounds in the material. (C) 2002 Elsevier Science B.V. All rights reserved.
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