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Degradation of Estrogens in Sewage Treatment Processes 
    
  
Figure 5-6 
Degradation of 500 ng/L steroid estrogens in experiments with activated sludge in aerobic conditions. Since the extraction was made on both water and sludge phases, the total concentrations were 
measured. Data shown as % of initial concentration. 
  
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 Version 1.0 November 2004, © Danish Environmental Protection Agency 
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