杜邦FilmTec BW30FR-400/34 膜元件DuPont FilmTec™ BW30FR-400/34 Reverse Osmosis Membrane Element Technical Copy

5. DuPont FilmTec™ BW30FR-400/34: Suitable for Salt Separation in Low-to-Medium Salinity Systems

DuPont FilmTec™ BW30FR-400/34 is well-suited for salt separation applications in low-to-medium salinity systems (salinity <10,000 ppm), making it a reliable choice for industrial wastewater resource recovery [3]. Its polyamide composite membrane efficiently retains sodium chloride and other common salt ions, while the 34-mil feed spacer design reduces contaminant deposition and pressure drop—critical for stable salt separation performance. In practical applications such as coastal power plant wastewater treatment, this membrane has demonstrated a 40% lower flux decay rate than conventional RO membranes, with long-term salt rejection stabilized above 98% [3], verifying its applicability in salt separation scenarios.

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