Estrogenic pollutants, like 17α-Ethinylestradiol (EE2), a compound with high endocrine-disrupting potency and high resistance to biodegradation in the aqueous environment, attracts increasing concern in the past decade. As a consequence, the elimination of EE2 is becoming a hot topic in recent researches. In this work, adsorption of EE2 was comparatively assessed on four types of microfiltration membranes at different pH, salinity, methanol content and concentrations of EE2 in feed solutions. Adsorption experiments performed in aqueous solution at different pH values showed that adsorption of EE2 by nylon membrane drops drastically along with the dissociation of EE2 with pH increasing from 9 to 11. Series of experiments on salinity (1.75-35g/L NaCl) effect were also performed at constant pH value, and the results indicated that adsorption of EE2 on nylon membrane increased with increasing salinity. Then, simulated brackish water prepared from a sequence of diluted seawater was employed to study the adsorption of EE2 in brackish water. The results matched with those in previous salinity effect study. Presence of methanol in feed solution significantly reduced nylon membrane adsorption of EE2.<br/>

Absorption of estrogenic pollutants onto microfiltration membranes

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.