Abstract
Water scarcity arises rapidly with increasing human population, urbanization and industrialization. Therefore, water production from natural sources using efficient and environmental friendly technologies is gaining attention. Pervaporative desalination is a promising technology based upon membrane filtration. Here, we fabricated and tested a novel hybrid-composite membrane: polyvinylidene fluoride (PVDF)/polyvinyl pyrrolidone/(PVP)/3A zeolite. Desalination performance was evaluated in terms of flux, salt rejection, zeolite incorporation within the membrane and temperature. Results show that all membranes exhibited salt rejection higher than 99.5%. The highest flux of 2.5 kg m−2 h−1 and salt rejection of 99.9% were obtained using 10 wt% 3A incorporated PVDF/PVP membrane at 40 °C. The PVDF/PVP/3A zeolite membrane preserved its stability during 55-h desalination operating without performance decline.
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Acknowledgements
The authors gratefully acknowledge Hayim Pinhas Group (Distributor of Arkema in Turkey) for kindly supplying of the Kynar 720. The study was financially funded by the Scientific Research Centre of Kocaeli University (2017/009).
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Nigiz, F.U. Complete desalination of seawater using a novel polyvinylidene fluoride/zeolite membrane. Environ Chem Lett 16, 553–559 (2018). https://doi.org/10.1007/s10311-017-0684-5
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DOI: https://doi.org/10.1007/s10311-017-0684-5