Reverse osmosis membrane BW30- 400FR Dow membrane

BW30-400FR Dow membrane is a high rejection reverse osmosis membrane element designed for pollution resistance, suitable for treating water sources containing high biological and organic pollutants. The following is a summary of the main features and specifications of the membrane element:

1. ** High effective membrane area **: BW30- 400FR has an effective membrane area of 400 square feet (about 37 square meters), which allows higher water production without increasing operating flux.

2. ** High desalination rate **: can provide excellent desalination performance, stable desalination rate is usually above 99.5%, reverse osmosis membrane BW30-400FR Dow membrane for removing inorganic salts in water is very effective. It is widely recognized for its desalination capacity and is suitable for a variety of water quality conditions.

3. ** Wide cleaning pH range **: This membrane element can withstand cleaning conditions from pH 1 to pH 12 (or wider to pH 13 depending on the source), which means it can effectively deal with inorganic salt scale, organic and microbial contamination, and is easy to maintain and clean. 4. ** Advanced anti-fouling technology **: Dow proprietary chemical and physical modification technologies enhance membrane fouling resistance and cleanability, especially for applications where pretreatment is strict but still faces high levels of contamination.

5. ** Fully automatic precision manufacturing **: By shortening the diaphragm length and increasing the number of membrane blades, the structure is optimized, the accumulation of pollution is reduced, and the overall membrane efficiency and system reliability are improved.

6. ** Economy and trouble-free operation **: Designed to reduce operating costs, improve system compactness, reduce installation costs, and ensure long-term economy and operational stability by reducing fouling and extending service life.

7. ** Operating conditions **: Standard test conditions typically include a NaCl concentration of 2000ppm, a specific pressure (e.g., 225 psi or 15.5 bar), a temperature of 25 C and pH 8, and a recovery of 15%. Actual water production may vary, but is usually not less than 93% of nominal (the range may vary depending on the source).

In conclusion, Dow BW30-400FR reverse osmosis membranes are ideal for treating highly contaminated water sources, especially in industrial and municipal water treatment applications where high desalination efficiency and long-term stability are required.
  Dow FILMTEC™ BW30-400FR RO membrane specifications are summarized below:

- ** Effective membrane area **: 400 square feet (approximately 37 square meters).
- ** Water yield **: Under standard test conditions (e.g. 2000ppm NaCl concentration, pressure, 25 C, pH 8, 15% recovery), water yield is 40 m3/day (approximately 10,500 gal/day).
- ** Salt rejection rate **: Stable salt rejection rate is usually 99.5% or higher, which can effectively remove salt and other dissolved solids from water.
- ** Inlet Width **: No specific values are mentioned, but the BW 30FR-400/34 model has an inlet width of 34 mils, which helps reduce fouling and improve cleaning.
- ** Operating pressure **: Although the specific operating pressure is not directly given, it is mentioned that the element can operate at a lower pressure, thereby increasing the economy of system operation.
- ** Temperature resistance **: * High operating temperatures up to 113 F (about 45 C).
- ** Anti-pollution performance **: Dow proprietary anti-pollution membrane technology, optimized for water sources containing biological and organic contaminants, has excellent anti-pollution ability and cleaning recovery performance, cleaning pH range is wide, generally pH 1 to pH 12, in some cases to pH 13.
- ** Design Features **: Reverse osmosis membrane BW30- 400FR Dow membrane increases water production by increasing membrane area rather than simply increasing membrane flux and feed pressure, helping to maintain low fouling rates, extend membrane element life, and make system design more compact.

These specifications demonstrate the high efficiency, durability and economy of BW30- 400FR reverse osmosis membranes in treating highly contaminated water sources.