Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
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Removal of Estrogenic Compounds from Aqueous Solutions Using Zeolites
The adsorption capacities of 17β‐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.
Removal of Estrogenic Compounds from Aqueous Solutions Using Zeolites
The adsorption capacities of 17β‐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.
Removal of Estrogenic Compounds from Aqueous Solutions Using Zeolites
Liu, Jin (Autor:in) / Carr, Steve A. (Autor:in)
Water Environment Research ; 85 ; 2157-2163
01.11.2013
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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