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<p>This study was conducted to measure the status of PFOS and PFOA parameters in Çorlu Creek and Ergene River located in the Ergene River Basin in the Thrace sub-region of the Marmara Region of Türkiye and to evaluate the removal methods of these parameters. There are approximately 2500 industrial facilities in the basin, mostly in the textile industry, and approximately 700 of these facilities consume significant amounts of water and produce large amounts of wastewater. PFOS and PFOA concentrations were measured in surface water samples taken from three points in each water body twice in winter, spring and summer. PFOS and PFOA concentrations in the basin varied between 0.13–15.25&#xa0;ng/L and 0.26–26.40&#xa0;ng/L, respectively. In Ergene River, average PFOS concentration was determined as 2.4&#xa0;ng/L and PFOA concentration as 6.1&#xa0;ng/L. In Çorlu Creek, these values were measured as 3.3&#xa0;ng/L (PFOS) and 5.6&#xa0;ng/L (PFOA), respectively. In the second stage of the study, the removal of these pollutants by adsorption with powdered activated carbon (PAC), nanofiltration and sulphate radical-based oxidation methods were investigated. At the end of 120&#xa0;min at pH 3 at a dosage of 0.9&#xa0;g/L PAC, removal efficiency of more than 95% was obtained in both compounds, giving the highest removal efficiency among the methods. At a dose of 20&#xa0;g/L potassium peroxydisulfate and pH 3, 69% removal of PFOA was achieved after 120&#xa0;min, but no removal was achieved for PFOS. The highest removal efficiencies in nanofiltration were obtained using the NF90 membrane.</p>

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Occurrence and treatment of PFOS and PFOA in surface waters of the Ergene River Basin, Türkiye

  • 期刊论文

  • 发表日期：

    2025年8月8日

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  • A. Özvardarli,
  • Y. Güneş,
  • A. Hanedar,
  • E. Güneş

摘要

This study was conducted to measure the status of PFOS and PFOA parameters in Çorlu Creek and Ergene River located in the Ergene River Basin in the Thrace sub-region of the Marmara Region of Türkiye and to evaluate the removal methods of these parameters. There are approximately 2500 industrial facilities in the basin, mostly in the textile industry, and approximately 700 of these facilities consume significant amounts of water and produce large amounts of wastewater. PFOS and PFOA concentrations were measured in surface water samples taken from three points in each water body twice in winter, spring and summer. PFOS and PFOA concentrations in the basin varied between 0.13–15.25 ng/L and 0.26–26.40 ng/L, respectively. In Ergene River, average PFOS concentration was determined as 2.4 ng/L and PFOA concentration as 6.1 ng/L. In Çorlu Creek, these values were measured as 3.3 ng/L (PFOS) and 5.6 ng/L (PFOA), respectively. In the second stage of the study, the removal of these pollutants by adsorption with powdered activated carbon (PAC), nanofiltration and sulphate radical-based oxidation methods were investigated. At the end of 120 min at pH 3 at a dosage of 0.9 g/L PAC, removal efficiency of more than 95% was obtained in both compounds, giving the highest removal efficiency among the methods. At a dose of 20 g/L potassium peroxydisulfate and pH 3, 69% removal of PFOA was achieved after 120 min, but no removal was achieved for PFOS. The highest removal efficiencies in nanofiltration were obtained using the NF90 membrane.