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    Dual layer composite nanofiltration hollow fiber membranes for low-pressure water softening by Setiawan, Laurentia, Shi, Lei, Wang, Rong

    Published 2014
    “…A positively charged NF-like selective layer was developed by a simple polyelectrolyte cross-linking using polyallylamine (PAAm). The newly developed (PAI-PAAm)-PES dual layer hollow fiber membranes show a salt water permeability of 15.8 L/m2.h.bar and high Mg2+ and Ca2+ rejections of 94.2% and 92.3%, respectively, at operating pressure of 2 bar using a 3000 ppm TDS feed solution. …”
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    Journal Article
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