Seawater and Brackish Water Desalination membrane Hydranautics SWC5-8040

 

Here is a detailed overview of the Hydranautics SWC5-8040 reverse osmosis (RO) membrane, synthesized from the provided search results:

Key Features
  1. High Performance:
    • High salt rejection (especially NaCl and boron) and stable desalination performance, ensuring high-quality permeate even at high recovery rates.
    • Effective silica (SiO₂) removal, reducing downstream system costs.
    • Low fouling rate and low operating pressure, minimizing energy consumption.
  2. Design and Durability:
    • Wide feed spacers and optimized flow channels enhance cleaning efficiency and reduce clogging .
    • Tolerates a broad pH range (2–11 during operation, 1–13 during cleaning) and temperatures up to 45°C .
  3. Compatibility:
    • Available in standard 8040 size (8-inch diameter, 40-inch length), suitable for industrial-scale systems.
Technical Specifications
ParameterValue
Max Inlet Pressure8.27 MPa (1200 psi)
Max Flow Rate17.0 m³/h (75 gpm)
Operating pH2–11
Max Temperature45°C
Max Feed Turbidity≤1.0 NTU
Max Feed SDI₁₅<5
Chlorine Tolerance<0.1 mg/L residual chlorine
Applications
  • Seawater and Brackish Water Desalination: Produces potable water or industrial-grade water from high-salinity sources.
  • Industrial Water Treatment: Used in power plants (boiler feedwater), electronics (ultrapure water), pharmaceuticals, and food/beverage production.
  • Wastewater Reuse: Treats industrial effluents for recycling.
Installation & Maintenance
  1. Installation Guidelines:
    • Lubricate seals with glycerin (not oil-based products) to ensure proper sealing.
    • Install membranes in the feed-to-concentrate direction within the pressure vessel, ensuring alignment to avoid gaps.
  2. Maintenance:
    • Regular Cleaning: Use chemical agents (e.g., NaOH, HCl) for fouling or scaling, adhering to pH limits.
    • System Shutdown: Flush membranes every 5 days during short-term shutdowns; for long-term storage, use 1% sodium bisulfite to prevent microbial growth.

This membrane is widely favored for its high efficiency, durability, and adaptability in demanding water treatment scenarios. For detailed system design or troubleshooting, consult Hydranautics-certified engineers or use official technical resources.

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