Abstract
AbstractThe removal of estrone (E1) and 17α‐ethinylestradiol (EE2) from synthetic wastewater under anaerobic conditions, at environmental relevant concentrations (80 and 4 μg L−1, for E1 and EE2, respectively), was here assessed. Results indicated that the increase in temperature favoured E1 removal (complete removal at 25°C, and 34°C after 25 h), while EE2 does not seem to be affected. The lowest mixed liquor suspended solid (MLSS) concentrations promoted a higher removal of E1 and EE2 (with a complete removal for E1 after 25 h and of 74% after 265 h for EE2 with a MLSS of 2 g L−1). Moreover, the presence of nitrate does not seem to have influence on E1 and EE2 removal. These studies represent a step forward in the knowledge of the influence of different conditions on the estrogens' removal under anaerobic conditions.
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