Abstract
In the present work we fractioned the effluent water from an urban sewage treatment plant (USTP) of Ribarroja (Valencia, Spain) using the conventional protocol based on DAX8 and XAD4 resins. The fractions were analyzed by elemental analysis, FT–IR, 1H‐NMR, COSY‐NMR, HSQC‐NMR, FAB+‐MS and also by derivatization with bis(trimethylsilyl)trifluoroacetamide with 10% of trimethylchlorosilane. The four fractions obtained have common spectroscopic features and individual compounds indicating that the fractioning procedure is inefficient at separating different families of compounds. Gas chromatography/mass spectrometry (GC–MS) analysis of the derivatized fractions allowed identification of many individual compounds. The main classes of organic compounds present in the effluent are saccharides, amino acids, fatty acids, hydroxyacids, aromatic compounds and steroids. Also we were able to identify in the effluent the emerging pollutants paracetamol and ketoprofen – two best‐selling anti‐inflammatory drugs used in humans.
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