Reverse Osmosis Membrane Model RE4021-TE Applied In Wind Power Plant

Xinxiang Lifeierte Filter Corp., Ltd., a pioneer in advanced filtration solutions, introduces the RE4021-TE Reverse Osmosis (RO) Membrane, a high-performance spiral-wound membrane engineered for industrial and commercial applications requiring exceptional salt rejection and durability. Designed to excel in challenging environments, including wind power plants, pharmaceuticals, and seawater desalination, the RE4021-TE combines cutting-edge material science with robust construction to deliver reliable, long-term performance.

Technical Parameters

The RE4021-TE membrane is optimized for efficiency and reliability. Key specifications include:

Note: Test conditions: 500 ppm NaCl solution, 115 psi (793 kPa), 77°F (25°C), pH 7.5, 15% recovery rate.

Working Principle

The RE4021-TE operates on the principle of reverse osmosis, leveraging a semi-permeable polyamide composite membrane to remove dissolved solids, bacteria, and organic contaminants. Here’s how it works:

1. High-Pressure Feed: Pretreated water is pressurized by a pump (up to 600 psig) and forced through the membrane.
2. Selective Separation: Water molecules permeate through the dense polymer matrix of the membrane, while dissolved ions (Na⁺, Cl⁻, Ca²⁺), organic compounds, and microbes are rejected.
3. Dual Streams: Purified water (permeate) is collected, while concentrated brine (reject stream) is safely discharged.

The spiral-wound design maximizes surface area and minimizes pressure drop, ensuring efficient filtration even in high-TDS feedwater.

Performance & Advantages

1. High Salt Rejection: Achieves ≥99.0% NaCl rejection, making it ideal for brackish water and seawater applications.
2. Low Energy Consumption: Optimized for operation at 115 psi (793 kPa), reducing energy costs by 20% compared to conventional RO membranes.
3. Anti-Fouling Design: Hydrophilic membrane surface and 34-mil feed spacers minimize particulate fouling and biofouling.
4. Extended Lifespan: Withstands rigorous cleaning cycles (pH 2.0–11.5) and operates reliably for 3–5 years under proper maintenance.
5. Broad Compatibility: Suitable for feedwater with TDS up to 5,000 ppm and SDI <5.

Product Structure

The RE4021-TE membrane features a multi-layer composite structure:

1. Polyamide Active Layer: Ultra-thin, dense polymer film for precise ion rejection.
2. Polysulfone Support Layer: Provides mechanical strength and porosity.
3. Fiberglass Outer Shell: Protects against abrasion and chemical corrosion.
4. 34-mil Feed Spacer: Enhances turbulence to reduce scaling and fouling.

Each element is vacuum-sealed to ensure integrity during transportation and storage.

Application in Wind Power Plants

In wind energy facilities, the RE4021-TE plays a critical role in maintaining operational efficiency:

• Cooling Water Purification: Removes scaling ions (Ca²⁺, Mg²⁺) from turbine cooling circuits, preventing corrosion and mineral buildup.
• Lubrication System Maintenance: Supplies ultra-pure water for hydraulic fluids, extending equipment lifespan.
• Battery Storage Systems: Produces deionized water for electrolyte preparation in energy storage units.

Case Study: A wind farm in coastal China reduced maintenance costs by 40% after installing RE4021-TE membranes, thanks to their consistent removal of silica and iron contaminants.

Other Industry Applications

1. Food & Beverage: Generates process water for brewing, bottling, and ingredient mixing (meets FDA/WHO standards).
2. Pharmaceuticals: Provides USP-grade water for drug formulation and equipment sterilization.
3. Desalination: Converts seawater into potable water for coastal communities (TDS reduction >99%).
4. Electronics Manufacturing: Produces ultrapure water (18.2 MΩ·cm) for semiconductor rinsing.

Conclusion

The RE4021-TE Reverse Osmosis Membrane by Xinxiang Lifeierte Filter Corp., Ltd., sets a new benchmark in filtration technology. With its unmatched salt rejection, energy efficiency, and versatility across industries, it is the go-to solution for sustainable water management. Whether powering wind turbines or ensuring pharmaceutical safety, the RE4021-TE delivers purity, reliability, and long-term value.

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