Fate of Pharmaceuticals during Wastewater Treatment by a Membrane Bioreactor
AbstractThis study provides a comprehensive insight into the levels and fate of nine commonly used pharmaceuticals (amitriptyline, atenolol, gemfibrozil, ibuprofen, ketoprofen, metformin, naproxen, paracetamol and simvastatin) through a full-scale membrane bioreactor (MBR) in New South Wales, Australia. Seven out of the nine studied pharmaceuticals were detected in the raw sewage with average concentrations in the range of 1.29-33.3 µg.L-1, while gemfibrozil and simvastatin were below the analytical detection limit (1 ng.L-1). The MBR consistently achieved high removal efficiencies of the detected pharmaceuticals, in the range of 77.2-99.9 %. A mass-balance showed that sorption to biomass was the dominant removal mechanism for amitriptyline while biodegradation/transformation was responsible for removing all other pharmaceuticals. This study revealed that log D (Log Kow corrected for ionisation at the ambient pH) provides an effective estimation of the sorption capacity of these pharmaceuticals to biomass.
TRINH, Trang et al. Fate of Pharmaceuticals during Wastewater Treatment by a Membrane Bioreactor. gwf Wasser | Abwasser, [S.l.], v. 152, n. Special 1, p. 98 - 102, juni 2013. ISSN 0016-3651. Verfügbar unter: <http://ojs.di-verlag.de/index.php/gwf_wa/article/view/1170>. Date accessed: 05 juni 2020.