Removal of Estrogenic Compounds from Aqueous Solutions Using Zeolites

The adsorption capacities of 17ß-estradiol (E2) onto two Y type zeolites (CBV-100 and CBV-901), a ZSM zeolite (CBV-28014), and a silicalite zeolite (HISIV-3000) in water were investigated. The CBV-901 extrudate, which has a lower ratio of silicon dioxide/aluminum oxide (SiO₂/Al₂O₃) than CBV-28014 an...

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Bibliographic Details
Published in:Water environment research 2013-11, Vol.85 (11), p.2157-2163
Main Authors: Liu, Jin, Carr, Steve A.
Format: Article
Language:English
Subjects:
Activated carbon
Adsorption
Applied sciences
Aqueous solutions
Chemical contaminants
Chemical engineering
Contaminants
Environmental cleanup
Estrogens
Exact sciences and technology
Isotherms
Kinetics
Pollution
Wastewater
Wastewater treatment
Water tables
Water treatment
Zeolites
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Summary:The adsorption capacities of 17ß-estradiol (E2) onto two Y type zeolites (CBV-100 and CBV-901), a ZSM zeolite (CBV-28014), and a silicalite zeolite (HISIV-3000) in water were investigated. The CBV-901 extrudate, which has a lower ratio of silicon dioxide/aluminum oxide (SiO₂/Al₂O₃) than CBV-28014 and less surface area than CBV-100, had the highest adsorption affinity for 17β-estradiol. At an equilibrium concentration of 0.09 mg/L, the adsorption capacity of E2 by CBV-901 extrudate was 8.24 mg/g, whereas the E2 adsorption capacities of CBV-28014, HISIV-3000, CBV-100 were all < 0.05 mg/g. CBV-901 had adsorption affinities for other estrogens such as estrone (E1) and estriol (E3). In a mixture of E1, E2, and E3, CBV-901 extrudate showed a greater affinity for E1 and E2 than for E3. The CBV-901 extrudate was also studied for the adsorption of E1, E2, EE2 (17β-ethynylestradiol), progesterone, 4-nonylphenol, and 4-tert-octylphenol in a spiked effluent. Results showed a promising prospect of CBV-901 for the removal of estrogenic compounds in aqueous solutions.
ISSN:1061-4303
1554-7531
DOI:10.2175/106143013X13596524516545