17α-Ethinylestradiol and 17β-estradiol removal from a secondary urban wastewater using an RBC treatment system

17α-Ethinylestradiol and 17β-estradiol removal from a secondary urban wastewater using an RBC treatment system

The presence of micropollutants that include endocrine-disrupting compounds (EDC) in aquatic environments is currently one of the most relevant aspects of water quality due to their adverse effects on aquatic organisms and human health. From the several categories of EDC, 17β-estradiol (E2) is a nat...

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Bibliographic Details
Published in:Environmental monitoring and assessment Vol. 190; no. 6; pp. 320 - 14
Main Authors: Maurício, R., Dias, R., Ribeiro, V., Fernandes, S., Vicente, A. C., Pinto, M. I., Noronha, J. P., Amaral, L., Coelho, P., Mano, A. P.
Format: Journal Article
Language:English
Published: Cham Springer International Publishing 01-06-2018
Springer Nature B.V
Subjects:
17β-Estradiol
Aquatic environment
Aquatic organisms
Atmospheric Protection/Air Quality Control/Air Pollution
Bioaccumulation
Biological magnification
Birth control
Contraceptives
Earth and Environmental Science
Ecology
Ecotoxicology
Efficiency
Endocrine disruptors
Environment
Environmental Management
Environmental monitoring
Environmental science
Estrogens
Ethinylestradiol
Hormones
Monitoring/Environmental Analysis
Oral contraceptives
Oxidation
Pollutants
Removal
Reproductive system
Sex hormones
Steroids
Vertebrates
Wastewater
Wastewater treatment
Wastewater treatment plants
Water pollution
Water quality
Water treatment
Rotating biological contactors
Hormones
Tertiary wastewater treatment
E2 and EE2
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Summary:The presence of micropollutants that include endocrine-disrupting compounds (EDC) in aquatic environments is currently one of the most relevant aspects of water quality due to their adverse effects on aquatic organisms and human health. From the several categories of EDC, 17β-estradiol (E2) is a natural hormone, which is prevalent in vertebrates, associated with the female reproductive system and maintenance of the sexual characters. 17α-Ethinylestradiol (EE2) is a synthetic hormone produced from the natural hormone E2 and is an essential component of oral contraceptives. These compounds are susceptible to bioconcentration and have high potential to bioaccumulation. Wastewater treatment plants are the main point source of E2 and EE2 into aquatic environments, but conventional wastewater treatment systems are not specifically designed for steroid removal. To overcome this problem, biological tertiary treatment may be a solution for the removal of emergent pollutants such as E2 and EE2. The main purpose of the present study is to provide a solution based on the optimization of a rotating biological contactor system to remove estrogens, specifically E2 and EE2, and to quantify their removal efficiency on different matrices, namely real wastewater and different synthetic wastewaters. All assays presented viable removal efficiencies for compound E2 with values always above 50%; real wastewater yielded the highest removal efficiencies. EE2 removal had better removal efficiencies with synthetic wastewater as feed solution, with removals above 15%, whereas the removal efficiency with real wastewater was inexistent.
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content type line 23
ISSN:0167-6369
1573-2959
DOI:10.1007/s10661-018-6701-8