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highly purified water in the electronics and power industries.
It is suitable for desalination treatment of surface water, groundwater, tap water, and municipal water with salt content less than 10,000 ppm. It is mainly used for industrial pure water of various scales, boiler feed water of power plants, and other industrial water. It can also be used for the treatment of brackish water applications such as high-concentration saline wastewater and beverage water manufacturing.In the
FR series, the surface of this membrane was treated by special technology, which changed the electric charge and smoothness of the membrane surface, increased the hydrophilicity of the membrane surface, thus reducing the contamination of pollutants and microorganisms on the membrane surface, and
achieving the purpose of reducing the contamination of membrane components and prolonging the service life.
It is mainly used in various fields of industry, such as pure water, boiler recharge water, food processing and pharmaceutical manufacturing.
Model | Membrane ft2(m2) | Average Permeate GPD (m3/d) | Stable Rejection % | Min. Rejection % |
RM-BW-4021 | 36 (3.3) | 950 (3.6) | 99.5 | 99 |
RM-BW-4040 | 85 (7.9) | 2000 (7.6) | 99.5 | 99 |
RM-BW-8040 | 400 (37) | 10500 (39.5) | 99.5 | 99 |
RM-BW-4040FR | 85 (7.9) | 1900 (7.2) | 99.6 | 99 |
RM-BW-8040FR | 400 (37) | 9500 (36) | 99.6 | 99 |
Testing Pressure | 225 psi (1.5MPa) |
Temperature of Testing Solution | 25 ℃ |
Concentration of Testing Solution (NaCl) | 2000ppm |
pH Value of Testing Solution | 7.5 |
Recovery Rate of Single Element | 15%(8040、4040、2540)；8% (4021、2521) |
Max. Working Pressure | 600psi（4.14MPa） | Max. Feed Water COD | 10ppm |
Max. Feed Water Flow | 75gpm（17 m 3 /h）For 8040 16gpm(3.6 m 3/h) For 4040、4021 | Max. Feed Water BOD | 5ppm |
Max. Feed Water TOC | 10ppm | ||
Max. Feed Water Temperature | 45℃ | Residual Chlorine Concentration of Feed Water | ＜ 0.1ppm |
Max. Feed Water TDS | 5000ppm | pH Range of Feed Water During Continuous Operation | 2 ～ 12 |
Max. Feed Water Hardness | 60ppm | Max. Pressure Drop of Single Element | 15psi（0.1MPa） For8040、4040 10psi（0.07MPa）For4021 |
Max. Feed Water SDI 15 | 5 | ||
Max.Turbidity NTU | 1 |
A brackish water RO membrane is a reverse osmosis membrane specially designed for treating water with higher salt content than freshwater but lower salinity than seawater.Runmo BWRO membranes use advanced reverse osmosis technology to remove dissolved salts and impurities, providing reliable water purification performance for industrial applications.
The main difference between BWRO and SWRO membranes is the salinity level of the feed water.
BWRO membranes are designed for brackish water sources such as groundwater, surface water, and municipal water, while SWRO membranes are developed for high-salinity seawater desalination.
Runmo provides different RO membrane solutions according to water quality requirements and treatment conditions.
Brackish water RO membranes are widely used in:
Runmo BWRO membranes provide stable performance for various industrial water treatment systems.
Reverse osmosis for brackish water uses pressure to force water through a semi-permeable membrane while rejecting dissolved salts and contaminants.
The process helps produce purified water by reducing total dissolved solids (TDS) and improving water quality.
Runmo brackish water reverse osmosis membranes provide efficient salt rejection and reliable filtration performance.
Choosing the right brackish water RO membrane depends on factors including feed water quality, salt concentration, required water production, and system operating conditions.
Runmo provides professional membrane selection support based on different water treatment requirements.
For customized recommendations and technical assistance, please Contact Us.
ULP/XULP series of membrane elements is suitable for desalination treatment of surface water, groundwater, tap water, and municipal water with salt content less than 2000 ppm. It is mainly used in various fields of industry, such as pure water, boiler recharge water, food processing, and pharmaceutical manufacturing.
It is mainly used in various fields of industry, such as pure water, boiler recharge water, food processing and pharmaceutical manufacturing.
SW series membrane elements are suitable for the treatment of seawater and brackish water with high concentration. They can be used for the treatment of seawater desalination, desalination of brackish water with high concentration, boiler feed water in power plants, wastewater reuse, concentration and recovery of high-value-added substances such as food and medicine, etc.
It is mainly used in various fields of industry, such as pure water, boiler recharge water, food processing and pharmaceutical manufacturing.
It is mainly used in various fields of industry, such as pure water, boiler recharge water, food processing and pharmaceutical manufacturing.
Using modified PAN material, the ultrafiltration membrane has outstanding separation performance, good oxidation resistance, thermal stability, good mechanical properties, and permanent hydrophilicity. Despite the advantages mentioned above, the disadvantage is that the anti-pollution performance is slightly worse. For this reason, we overcome the above shortcomings by modifying the materials and membranes, and making their performance more excellent. Membrane filament has high strength and a breakage rate of less than three thousandths:
Unique central pipe bracket with uniform filament distribution and smooth water flow can prolong the service life of the membrane filament; reliable performance, water washing, and medication washing will not affect the normal use of the membrane. According to the water quality conditions, full filtration and cross-flow filtration can be selected. Full-volume filtration has the advantages of energy saving and high water utilization rate; cross-flow filtration can discharge pollutants in time, reduce the times of membrane cleaning, and prolong the service life of membrane components. Compared with traditional filtration methods, this system has the advantages of high automation, small floor area (only 1/2 of traditional filtering methods), high filtration accuracy, unattended, and it is a good option for reverse osmosis pretreatment.
It is mainly used in various fields of industry, such as pure water, boiler recharge water, food processing and pharmaceutical manufacturing.