Predicting Influent Estradiol and Estrone Concentrations for Wastewater Treatment Facilities
An externally validated model was developed to predict influent concentrations of natural estrogens at municipal wastewater plants. The model kinetic constant for the first-order biotransformation of estradiol into estrone, k E2, was calculated as 0.030 hour −1 (ranging from −0.080 to 0.49 hour −1, with a standard deviation of 0.23) and the model value for the biodegradation k of estrone, k E1, was −0.18 hour −1(ranging from −0.44 to 0.38 hour −1, with a standard deviation of 0.3). The k values were not found to be temperature-sensitive within the range 12 to 24.5°C and displayed a weak trend of increasing with total suspended solids within the range 0.103 to 0.450 g/L. The new model improved on the predictions of a previous model for influent estrone concentrations, but gave comparable results for estradiol.
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Document Type: Research Article
Affiliations: Department of Civil and Environmental Engineering, Michigan Technological University, Houghton, Michigan.
Publication date: 2009-02-01
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Water Environment Research (WER) publishes peer-reviewed research papers, research notes, state-of-the-art and critical reviews on original, fundamental and applied research in all scientific and technical areas related to water quality, pollution control, and management. An annual Literature Review provides a review of published books and articles on water quality topics from the previous year. Published as: Sewage Works Journal, 1928 - 1949; Sewage and Industrial Wastes, 1950 - 1959; Journal Water Pollution Control Federation, 1959 - Oct 1989; Research Journal Water Pollution Control Federation, Nov 1989 - 1991; Water Environment Research, 1992 - present.
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