BW30-400FR Fouling Resistant Brackish Water RO Membrane | Industrial Anti-Pollution Reverse Osmosis Element

Product Overview

Different from standard ordinary membranes, BW30-400FR focuses on anti-fouling performance and chemical cleaning tolerance. The upgraded hydrophilic coating reduces the adhesion force of pollutants on the membrane surface, making dirt easier to wash away during system flushing and chemical cleaning. The widened feed flow channel avoids dead zones and sludge deposition, greatly slowing down membrane blockage speed. With an effective membrane area of 400 square feet, it maintains high water production efficiency while possessing stronger anti-pollution capability than conventional models. It perfectly balances high flux, high salt rejection and excellent fouling resistance.

The full range of complete BW series brackish water membrane models includes: BW30-365, BW30-400, BW30-400FR, BW30-365FR, BW30-440i, BW30LE-440i, BW30XLE-440, BW30-4040, BW30FR-4040. Customers can choose standard type, anti-fouling type, low-energy type and different sizes according to raw water pollution degree, system pressure and water production requirements.

Working Principle

BW30-400FR anti-fouling reverse osmosis membrane adopts pressure-driven membrane separation technology and optimized surface anti-fouling mechanism:

1. Pressurized raw water enters the membrane flow channel, and the wide spacer structure reduces particle deposition.

2. The high-precision semi-permeable membrane layer intercepts dissolved salts, colloids, organic matter and microorganisms.

3. Pure water molecules pass through the membrane to form qualified permeate water.

4. Pollutants are discharged with concentrated water, and the hydrophilic membrane surface prevents dirt adhesion to achieve long-term stable operation.

Key Features

-Professional anti-fouling modification: Resist organic, microbial and colloid pollution effectively

- 34mil widened feed spacer: Reduce pressure difference growth and improve cleaning efficiency

- Ultra-wide pH cleaning range (1.0–13.0): Support strong acid and strong alkali deep cleaning

- 400 sq.ft large membrane area: High water yield and stable desalination rate

- Optimized short-leaf structure: Uniform flow and lower fouling tendency

- Universal standard size: Fully compatible with all 8-inch RO pressure vessels

Technical Specifications

- Model: BW30-400FR

- Type: 8 Inch Fouling Resistant Brackish Water Reverse Osmosis Membrane

- Effective Membrane Area: 400 ft² (37 m²)

- Standard Water Production: 10500 GPD (40 m³/d)

- Stabilized Salt Rejection: 99.5%

- Filtration Precision: 0.0001 μm (0.1 nm), intercept all substances above 0.0001μm

- Maximum Operating Pressure: 4.1 MPa (600 psi)

- Continuous Operating Temperature: 5℃ ~ 45℃

- Optimal Operating Temperature: 20℃ ~ 35℃

- Continuous pH Range: 2.0 – 11.0

- Cleaning pH Range: 1.0 – 13.0

- Maximum Feed SDI: ≤5

Application Scenarios

BW30-400FR anti-fouling RO membrane is specially designed for complex and polluted water quality. It is widely used in industrial wastewater reuse, circulating water reclamation, chemical plant process water treatment, steel and metal industry water purification, power plant water make-up, municipal secondary water reuse and other high-pollution water treatment projects. It is also suitable for food and beverage factories, mining water treatment and large commercial water equipment with high organic content in raw water.

Product Advantages

1. Excellent anti-fouling performance, effectively solving the problem of rapid flux attenuation of ordinary membranes in wastewater reuse projects.

2. Super strong chemical tolerance, supporting frequent and deep acid-base cleaning without damaging membrane performance.

3. Widened flow channel structure is not easy to block, reducing maintenance frequency and system downtime.

4. Maintain high desalination efficiency under long-term low-cleaning-cycle operation.

5. Fully interchangeable with imported original anti-fouling membranes, with high cost performance.

FAQ

Q1: What is the difference between BW30-400 and BW30-400FR?

A1: BW30-400 is a standard general-purpose membrane for clean raw water. BW30-400FR is an upgraded anti-fouling version, specially used for organic polluted water, wastewater reuse and complex water quality with strong anti-blocking ability.

Q2: What is the advantage of the FR anti-fouling membrane?

A2: FR series adopts hydrophilic anti-fouling coating and widened flow channel, which is not easy to adsorb sludge and biofilm, has slow pressure difference rise and longer cleaning cycle.

Q3: What water quality is BW30-400FR suitable for?

A3: It is suitable for brackish water with high organic content, municipal reclaimed water, industrial wastewater reuse, and raw water with high SDI and microbial content.

Q4: What is the working temperature range of BW30-400FR?

A4: The continuous operating temperature is 5℃~45℃, and the best operating temperature is 20℃~35℃ for optimal water yield and rejection rate.

Q5: Can BW30-400FR replace ordinary BW30-400 directly?

A5: Yes. The installation size and operating parameters are completely universal, realizing plug-and-play replacement without system modification.

Q6: How long is the service life of anti-fouling RO membrane?

A6: Under standard pretreatment, the service life is 2–3 years. For polluted water conditions, FR membrane has a far longer service cycle than ordinary membranes.

Q7: How to clean BW30-400FR membrane?

A7: It supports wide-range pH chemical cleaning. Acid cleaning removes inorganic scale, and alkali cleaning removes organic pollutants and biological slime to restore membrane flux.