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Ejhed H, Fång J, Hansen K, et al. The effect of hydraulic retention time in onsite wastewater treatment and removal of pharmaceuticals, hormones and phenolic utility substances. Sci Total Environ. 2017;618:250-261doi: 10.1016/j.scitotenv.2017.11.011.
Ejhed, H., Fång, J., Hansen, K., Graae, L., Rahmberg, M., Magnér, J., Dorgeloh, E., & Plaza, G. (2018). The effect of hydraulic retention time in onsite wastewater treatment and removal of pharmaceuticals, hormones and phenolic utility substances. The Science of the total environment, 618250-261. https://doi.org/10.1016/j.scitotenv.2017.11.011
Ejhed, H, et al. "The effect of hydraulic retention time in onsite wastewater treatment and removal of pharmaceuticals, hormones and phenolic utility substances." The Science of the total environment vol. 618 (2018): 250-261. doi: https://doi.org/10.1016/j.scitotenv.2017.11.011
Ejhed H, Fång J, Hansen K, Graae L, Rahmberg M, Magnér J, Dorgeloh E, Plaza G. The effect of hydraulic retention time in onsite wastewater treatment and removal of pharmaceuticals, hormones and phenolic utility substances. Sci Total Environ. 2018 Mar 15;618:250-261. doi: 10.1016/j.scitotenv.2017.11.011. Epub 2017 Nov 10. PMID: 29128774.
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Sci Total Environ. 2018 Mar 15;618:250-261. doi: 10.1016/j.scitotenv.2017.11.011. Epub 2017 Nov 10.

The effect of hydraulic retention time in onsite wastewater treatment and removal of pharmaceuticals, hormones and phenolic utility substances.

The Science of the total environment

H Ejhed, J Fång, K Hansen, L Graae, M Rahmberg, J Magnér, E Dorgeloh, G Plaza

Affiliations

  1. IVL Swedish Environmental Research Institute, Box 210 60, S-100 31 Stockholm, Sweden. Electronic address: [email protected].
  2. IVL Swedish Environmental Research Institute, Box 210 60, S-100 31 Stockholm, Sweden.
  3. PIA- Prüfinstitut für Abwassertechnik GmbH at RWTH Aachen University, Germany.
  4. IETU Institute for Ecology of Industrial Areas, Katowice, Poland.

PMID: 29128774 DOI: 10.1016/j.scitotenv.2017.11.011

Abstract

Micropollutants such as pharmaceuticals, hormones and phenolic utility chemicals in sewage water are considered to be an emerging problem because of increased use and observed adverse effects in the environment. The study provides knowledge on the removal efficiency of micropollutants with a range of physical and chemical properties in three commercially available onsite wastewater treatment facilities (OWTFs), tested on influent wastewater collected from 2500 person equivalents in Bildchen, Germany. A longer hydraulic retention time would in theory be expected to have a positive effect, and this study presents results for three different OWTFs in full-scale comparable tests under natural conditions. A range of 24 different pharmaceuticals, five phenols and three hormones were analyzed. Flow-proportional consecutive sampling was performed in order to determine the removal efficiency. Twenty-eight substances were detected in the effluent wastewater out of 32 substances included. Average effluent concentrations of Simvastatin, Estrone, Estradiol and Ethinylestradiol were above the indicative critical-effect concentration of pharmacological effect on fish in all facilities. Average effluent concentrations of both Diclofenac and Estradiol were higher than the Environmental Quality Standards applied in Sweden (190-240 times and 9-35 times respectively). The removal efficiency of micropollutants was high for substances with high logK

Copyright © 2017 Elsevier B.V. All rights reserved.

Keywords: Decentralized sewage treatment; Hormones; Hydraulic retention time; Pharmaceuticals; Phenolic utility chemicals; Removal efficiency

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