Author(s):
1. Mladenka Novaković, Faculty of Technical Sciences, Department for Production Engineering, 2. Ivana Mihajlović, Faculty of Technical Sciences, Department for Production Engineering, Serbia
3. Maja Đogo, Faculty of Technical Sciences, Department for Production Engineering, Serbia
4. Mirjana Vojinović Miloradov, Faculty of Technical Sciences, Department for Production Engineering, Serbia

Abstract:
Due to excessive use, pharmaceutical active components are continuously inputed in environmental matrices. The residues of pharmaceuticals are present at very low concentrations (nanogram per liter or lower). However, they are biologically and physiologically very active. Drugs are mostly excreted via some organs of human body, in original forms or as metabolites, and they enter to water matrix through sewage disposal systems. Conventional wastewater treatment plants are not designed for successful elimination of emerging micropollutants, so effluents represent its major source. Non-steroidal anti-inflammatory drugs (NSAIDs) represent pharmaceutical class, which is often used due to its analgesic, antipyretic and anti-inflammatory properties. Naproxen (C14H14O3), 2-arylpropionic acid derivative, is one of the most frequently detected NSAIDs in domestic wastewater and surface water as the consequence of its low tendency to sorb on active sludge. The aim of this study is to investigate the possibility of separation of naproxen by using commercial active carbon. The experiments were performed by batch adsorption mode. In order to analyse adsorption equilibrium, different concentrations of naproxen were used. The adsorption equilibrium data were analysed by Freundlich, Langmiur and Temkin isotherms. According to correlation coefficient r2=0.98, the best fitting of experimental data was obtained by Langmur isotherm.

Key words:
pollutants, adsorption, wastewater

Thematic field:
Environmental Engineering

Date of abstract submission:
30.06.2016.

Conference:
XI Savjetovanje hemičara, tehnologa i ekologa Republike Srpske

Final paper