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Predicting Influent Estradiol and Estrone Concentrations for Wastewater Treatment Facilities
Author(s) -
Jarvie Michelle E.,
Hand David W.
Publication year - 2009
Publication title -
water environment research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.356
H-Index - 73
eISSN - 1554-7531
pISSN - 1061-4303
DOI - 10.2175/106143008x274257
Subject(s) - estrone , biodegradation , wastewater , chemistry , relative standard deviation , biotransformation , environmental chemistry , chromatography , environmental engineering , environmental science , hormone , detection limit , organic chemistry , biochemistry , enzyme
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.