Effects of the pre-treatment alternatives on the treatment of oil-gas field produced water by nanofiltration and reverse osmosis membranes

Authors

  • Hale Ozgun,

    Corresponding author
    1. Department of Watermanagement, Section Sanitary Engineering, Delft University of Technology, GA, Delft, The Netherlands
    • Department of Environmental Engineering, Civil Engineering Faculty, Istanbul Technical University, Maslak, Istanbul, Turkey
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  • Mustafa Evren Ersahin,

    1. Department of Environmental Engineering, Civil Engineering Faculty, Istanbul Technical University, Maslak, Istanbul, Turkey
    2. Department of Watermanagement, Section Sanitary Engineering, Delft University of Technology, GA, Delft, The Netherlands
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  • Selime Erdem,

    1. Department of Environmental Engineering, Civil Engineering Faculty, Istanbul Technical University, Maslak, Istanbul, Turkey
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  • Burcu Atay,

    1. Department of Environmental Engineering, Civil Engineering Faculty, Istanbul Technical University, Maslak, Istanbul, Turkey
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  • Borte Kose,

    1. Department of Environmental Engineering, Civil Engineering Faculty, Istanbul Technical University, Maslak, Istanbul, Turkey
    2. National Research Center on Membrane Technologies, Istanbul Technical University, Maslak, Istanbul, Turkey
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  • Recep Kaya,

    1. Department of Environmental Engineering, Civil Engineering Faculty, Istanbul Technical University, Maslak, Istanbul, Turkey
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  • Mahmut Altinbas,

    1. Department of Environmental Engineering, Civil Engineering Faculty, Istanbul Technical University, Maslak, Istanbul, Turkey
    2. National Research Center on Membrane Technologies, Istanbul Technical University, Maslak, Istanbul, Turkey
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  • Sema Sayili,

    1. Turkish Petroleum Corporation, Cankaya, Ankara, Turkey
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  • Pelin Hoshan,

    1. Turkish Petroleum Corporation, Cankaya, Ankara, Turkey
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  • Doga Atay,

    1. Turkish Petroleum Corporation, Cankaya, Ankara, Turkey
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  • Esra Eren,

    1. Turkish Petroleum Corporation, Cankaya, Ankara, Turkey
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  • Cumali Kinaci,

    1. Department of Environmental Engineering, Civil Engineering Faculty, Istanbul Technical University, Maslak, Istanbul, Turkey
    2. National Research Center on Membrane Technologies, Istanbul Technical University, Maslak, Istanbul, Turkey
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  • Ismail Koyuncu

    1. Department of Environmental Engineering, Civil Engineering Faculty, Istanbul Technical University, Maslak, Istanbul, Turkey
    2. National Research Center on Membrane Technologies, Istanbul Technical University, Maslak, Istanbul, Turkey
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Correspondence to: H.Ozgun, Department of Environmental Engineering, Civil Engineering Faculty, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey. Email: ozgunha@itu.edu.tr

Abstract

Background

Produced water is generated in huge volumes from oil and gas production facilities. Different alternatives including physical, chemical, and biological methods can be applied for the treatment of produced waters. In this study, different pre-treatment alternatives used before a final nanofiltration and reverse osmosis membrane system were evaluated. A membrane bioreactor and pressurized microfiltration and ultrafiltration systems were used in the pre-treatment stage.

Results

According to the results, the highest flux was obtained by the combination of ultrafiltration/microfiltration and nanofiltration; whereas, the maximum removal efficiencies for conductivity and chemical oxygen demand were obtained by the combination of membrane bioreactor and reverse osmosis systems.

Conclusion

The results of this study show that the emphasis should be placed on applying the right combination of membrane treatment processes instead of focusing only on pre- or final treatment units. © 2012 Society of Chemical Industry

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