Autor: |
Bozyiğit GD; Faculty of Civil Engineering, Department of Environmental Engineering, Yıldız Technical University, 34220 İstanbul, Turkey E-mail: gdalgic87@gmail.com., Ayyıldız MF; Faculty of Art and Science, Department of Chemistry, Yıldız Technical University, 34220 İstanbul, Turkey., Chormey DS; Faculty of Art and Science, Department of Chemistry, Yıldız Technical University, 34220 İstanbul, Turkey; Innova Gold Group, Merkez Mah. Ladin Sok. No:4/B001 Yenibosna, İstanbul, Turkey., Turan NB; Faculty of Civil Engineering, Department of Environmental Engineering, Yıldız Technical University, 34220 İstanbul, Turkey E-mail: gdalgic87@gmail.com., Kapukıran F; Innova Gold Group, Merkez Mah. Ladin Sok. No:4/B001 Yenibosna, İstanbul, Turkey; Institute of Science, Department of Environmental Engineering, Bülent Ecevit University, 67100 Zonguldak, Turkey., Engin GO; Faculty of Civil Engineering, Department of Environmental Engineering, Yıldız Technical University, 34220 İstanbul, Turkey E-mail: gdalgic87@gmail.com., Bakırdere S; Faculty of Art and Science, Department of Chemistry, Yıldız Technical University, 34220 İstanbul, Turkey; Turkish Academy of Sciences (TÜBA), Vedat Dalokay Street, No: 112, 06670, Çankaya, Ankara, Turkey. |
Abstrakt: |
In this study, seven compounds of environmental and health concern were treated by electrooxidation to determine their removal efficiencies from domestic wastewater. A batch type lab-scale reactor was used for the treatment process, and the analytes studied included two obsolete pesticides, two alkylphenols, two hormones, and bisphenol A. Titanium oxide and graphite electrodes were used as anode and cathode, respectively. Parameters of the electrooxidation process including pH of wastewater, ionic strength, applied current and treatment period were optimized by the univariate approach to maximize the removal efficiency of the analytes from wastewater. The optimum conditions were determined as nonadjusted pH of wastewater, 1.5 A current, 15 min treatment period and 5.0 g/L sodium chloride. Dispersive liquid-liquid microextraction was used to preconcentrate analytes before and after treatment in order to calculate the removal efficiency of analytes. The removal efficiency obtained under the optimum conditions was satisfactory for all seven analytes at different influent concentrations. |