Inhibitory effect of triclosan and nonylphenol on respiration rates and ammonia removal in activated sludge systems.

@article{Stasinakis2008InhibitoryEO,
  title={Inhibitory effect of triclosan and nonylphenol on respiration rates and ammonia removal in activated sludge systems.},
  author={Athanasios S. Stasinakis and Daniel Mamais and Nikolaos S Thomaidis and Elena Danika and Georgia Gatidou and Themistokles D. Lekkas},
  journal={Ecotoxicology and environmental safety},
  year={2008},
  volume={70 2},
  pages={
          199-206
        }
}
The toxic effects of triclosan (TCS) and nonylphenol (4-n-NP) on activated sludge heterotrophic and autotrophic microorganisms were evaluated. Toxicity experiments with specific oxygen uptake rate (SOUR) and ammonia uptake rate (AUR) revealed that TCS was much more toxic to heterotrophic and autotrophic microorganisms than 4-n-NP. In experiments with heterotrophic biomass, increase of sludge age (theta(c)) from 5 to 15 days resulted in a decrease of median effective concentrations (EC(50)) of… CONTINUE READING
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