Degradation of anti-inflammatory drug diclofenac in sewage water
Katarína Gazdová, Emília Kubiňáková *, Ján Híveš, Tomáš Mackuľak a
Institute of Inorganic Chemistry, Technology and Materials,
Faculty of Chemical and Food Technology STU in Bratislava,
Radlinského 9, 812 37 Bratislava, Slovak Republic
a Institute of Chemical and Environmental Engineering,
Faculty of Chemical and Food Technology STU in Bratislava,
Radlinského 9, 812 37 Bratislava, Slovak Republic
E-mail: * emilia.kubinakova@stuba.sk
Abstract: In recent years, interest in the presence of chemical and biological pollutants (drugs, pesticides, heavy metals etc.) in sewage water has been permanently increasing and, at the same time, significant effort to eliminate them has been shown. The aim of this work was to investigate the influence of ferrates activity on the decomposition of the drug diclofenac (DCF), which is commonly present in sewage water. The main task is to follow the effect of potassium ferrate dosage on DCF degradation and to evaluate the most effective ferrates concentration in solution. Subsequently, real samples of waste water containing a significant amount of various micro‑pollutants were treated by the same amount of ferrates as laboratory samples. High‑performance liquid chromatography (HPLC) was used for the sample analysis. Ferrates removal effectiveness was determined by comparing the chromatographic peak areas of residual DCF in the treated samples. Removal efficiency of diclofenac is proportional to the concentration of potassium ferrate in the treated solutions.
Keywords: potassium ferrate, diclofenac, sewage water
Full paper in Portable Document Format: acs_0263.pdf
Acta Chimica Slovaca, Vol. 10, No. 1, 2017, pp. 1—5, DOI: 10.1515/acs-2017-0001