NDLI: Adsorption of $^{3}$H-Labeled 17-β Estradiol on Powdered Activated Carbon

Content Provider	Springer Nature Link
Author	Yoon, Y. Westerhoff, P. Snyder, S. A.
Copyright Year	2005
Abstract	Three source waters, two model waters (Ultrapure (natural organic matter (NOM)-free)) water and Suwannee River NOM isolate by reverse osmosis (SR-NOM)) and a natural water (Colorado River water (CRW)), were tested. Those waters were selected to represent a relatively hydrophobic NOM (SR-NOM) and a relatively hydrophilic NOM (CRW) based on their specific ultraviolet absorbance (SUVA = UVA$_{254}$/DOC) values. The adsorption of an estrogenic compound, 17β-estradiol (E2), on powdered activated carbons (PACs) was investigated. Kinetic and PAC dose-response experiments were performed with PACs at an initial concentration of 0.1 nM (27 ng L$^{−1}$). Additional experiments were also performed at various initial concentrations ranging from 0.025 nM (6.8 ng L$^{−1}$) to 5.0 nM (1360 ng L$^{−1}$) to determine the effects of initial concentration on E2 adsorption. In separate experiments, 17β-estradiol was introduced to PAC as a pure component, in binary mixtures with other salts (NaCl, Na$_{2}$SO$_{4}$, and CaCl$_{2}$), and under varying pH conditions (4.0, 7.5, and 11.0) to determine the effects of pH and background ions on E2 adsorption. Samples were measured by liquid scintillation counting using $^{3}$H radio-labeled E2. Without preconcentration, a method detection limit using the liquid scintillation counter was 0.005 nM (1.36 ng L$^{−1}$), respectively. Increasing contact time and PAC dose improved compound removal. Activated carbon is a viable technology for water treatment plants.
Starting Page	343
Ending Page	351
Page Count	9
File Format	PDF
ISSN	00496979
Journal	Water, Air, and Soil Pollution
Volume Number	166
Issue Number	1-4
e-ISSN	15732932
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2005-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	adsorption endocrine disrupting compound powdered activated carbon radio-labeled 17β-estradiol water treatment Hydrogeology Environment Atmospheric Protection/Air Quality Control/Air Pollution
Content Type	Text
Resource Type	Article
Subject	Ecological Modeling Environmental Chemistry Pollution Environmental Engineering Water Science and Technology

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