Industrial RO Membrane 4040

Industrial Reverse Osmosis (RO) membranes are specialized components used in water treatment processes to remove dissolved salts, impurities, and other contaminants from water. Their specifications depend on the intended application, water quality, and system requirements. Below is a general overview of key specifications and parameters for industrial RO membranes:

1. Material

• Polyamide Thin Film Composite (TFC): Most industrial RO membranes are made of TFC material, offering high rejection rates and durability.

2. Configuration

• Spiral-Wound Modules: The most common configuration for industrial applications.
• Other configurations like hollow fiber and plate-and-frame are also available for niche applications.

3. Size and Dimensions

• Standard industrial membrane sizes include:
  • 4-inch Diameter Modules: For smaller flow rates.
  • 8-inch Diameter Modules: For larger flow rates.
• Typical lengths: 40 inches (industry standard) or custom lengths for specific applications.

4. Performance Parameters

• Salt Rejection Rate: Typically 99.5% or higher for seawater desalination and 99% or higher for brackish water applications.
• Permeate Flow Rate: Measured in gallons per day (GPD) or cubic meters per day (m³/day), varying based on the membrane type and size.
• Operating Pressure:
  • Brackish Water Membranes: 150–300 psi (10–20 bar).
  • Seawater Membranes: 800–1200 psi (55–82 bar).
• Recovery Rate: 15–50%, depending on feed water quality and system design.

5. Operating Conditions

• Maximum Operating Temperature: Generally around 45°C (113°F).
• pH Range:
  • Continuous Operation: Typically 3–10.
  • Cleaning Conditions: Wider range, such as 2–11 or even 1–12 for certain membranes.
• Maximum Feed Water TDS (Total Dissolved Solids):
  • Brackish Water Membranes: Up to 10,000 ppm.
  • Seawater Membranes: Up to 45,000 ppm.

6. Design Considerations

• Chlorine Tolerance: RO membranes are sensitive to free chlorine and require dechlorination of feed water.
• Fouling Resistance: Some membranes have anti-fouling layers to improve performance in challenging feed waters.
• Feed Spacer Thickness: Varies to balance fouling control and pressure drop.

7. Compatibility

• Designed to fit into standard pressure vessels used in RO systems.
• Connections typically use interlocking adapters or specific end caps.

8. Common Applications

• Desalination of seawater and brackish water.
• Industrial process water production.
• Wastewater recycling and reuse.
• Food and beverage processing.