Removal of Tetracycline Oxidation Products in the Nanofiltration Process

The possibility of removing tetracycline (TRC) from water in an integrated advanced oxidation and membrane filtration process was investigated. Ozonation UV/H2O2 photooxidation were applied for the destruction TRC. Six products (OPs) retaining structural core TRC have been identified. One new product, not reported so far literature, identified—ethyl 4-ethoxybenzoate. All identified OPs effectively retained on nanofiltration process. However, chemical oxygen demand (COD) measurements filtrates showed that case oxidation, passed through into filtrate. Various matrices used research, including river untreated after ozone treatment. It has shown organic matter present surface can improve pharmaceutical retention, although it contributes to significant fouling. Pre-ozonation reduced XPS analysis show H2O2 influence top polymer layer membrane. oxidants damage amide bond polyamide.