Product Introduction

The brackish water series elements are suitable for desalination of surface water, groundwater, and other water sources with salinity levels below 10,000 mg/L. They are also applicable for desalination and decolorization of water with higher organic and microbial content. Compared to conventional brackish water membranes, the fouling-resistant brackish water membrane series features wider flow channels and improved fouling resistance.

Product Specifications and Performance Parameters Table

Test Conditions: NaCl solution, temperature 25°C, pH value 7.5-8.0, recovery rate 15%; water production variation range ±15%.

Operating Conditions

1.The maximum temperature for continuous operation under pH conditions above 10 is 35°C.
2.Under certain conditions, the presence of free chlorine and other oxidants can cause premature membrane failure. It is recommended that users remove free chlorine through pre-treatment before it contacts the membrane.

Optimized Solution for Industrial Desalination Needs
The BoKaWater BWFR-4040HR Brackish Water Membrane for Desalination and Water Quality Safety is engineered to meet the demands of water treatment professionals managing brackish water sources below 10,000 mg/L salinity. Target users include facility operators and engineers in municipal, agricultural, and industrial sectors requiring stable desalination performance to maintain consistent water quality. The membrane supports effective treatment of surface water and groundwater with elevated organic and microbial content, enabling reliable downstream use. By integrating this membrane, operators achieve sustained output quality even as feedwater characteristics fluctuate, proving essential in large-scale water purification systems.

Advanced Technical Specifications for Robust Performance
Featuring a fouling-resistant design with wider flow channels, the BoKaWater BWFR-4040HR maintains operational stability and membrane longevity under challenging conditions. Key technical parameters include a typical salt rejection rate of 99.8%, maximum operating pressure of 600 psi, and a tolerance to a feedwater temperature up to 45°C. The membrane supports a broad pH range from 2 to 11, ensuring versatility across varied feedwater chemistries. Additionally, it tolerates low levels of free chlorine (0.1 mg/L) with appropriate pretreatment, reducing fouling risks. With an effective membrane area of 9.5 m² and production rates up to 2500 GPD, the BWFR-4040HR delivers measurable high-efficiency performance critical for system engineers focused on optimizing output and minimizing costs.

Applications Centered on Reliability and Water Quality Safety
This membrane element’s capabilities align well with the operational requirements of brackish water desalination plants, pilot testing facilities, and water quality safety systems. It is suited for integration within pretreatment and post-treatment workflows where high salt rejection and organic content reduction are priorities. The BoKaWater BWFR-4040HR enhances the reliability and environmental compliance of reverse osmosis systems used in municipal supply, agricultural irrigation, and light industrial processing. Its robust construction supports consistent permeate quality, reducing downtime and enabling precise process control for sustainable water reuse and potable water production.

Product Advantages

Structural and Design Advantages for Seamless Integration
The BoKaWater BWFR-4040HR Brackish Water Membrane for Desalination and Water Quality Safety incorporates a fouling-resistant membrane structure with redesigned wider flow channels that promote stable feedwater passage and limit clogging. This design reduces maintenance frequency and extends operational lifespan. The membrane’s compatibility with standard 4040 housings facilitates straightforward installation and replacement. With a high-pressure tolerance up to 600 psi, it adapts to varying operational pressures while maintaining structural integrity. These features provide water treatment system designers with modular elements that streamline assembly, upgradeability, and integration into complex RO systems.

Performance and User Benefits Driving Efficiency
Operational efficiency is enhanced through the BoKaWater BWFR-4040HR membrane’s consistently high salt rejection of up to 99.8%, ensuring permeate quality meets strict safety criteria. Its tolerance for variable pH and limited chlorine exposure reduces downtime related to membrane damage, enabling longer service intervals. These performance attributes translate into lower lifecycle costs and improved system reliability for users managing water safety. Additionally, easy compatibility with existing system pretreatment protocols enables rapid adoption in retrofit scenarios. End users benefit from dependable water quality and process stability, supporting informed decision-making and minimizing operational disruptions.


Use Scenarios

Implementation in Brackish Water Desalination Plants
In municipal and industrial desalination plants treating brackish water sources, the BoKaWater BWFR-4040HR membrane plays a critical role in removing dissolved salts and contaminants. Operating under conditions with salinity below 10,000 mg/L, it supports compliance with stringent water quality regulations by achieving salt rejection rates near 99.8%. The membrane’s fouling-resistant design and tolerance to elevated pressure optimize seasonal variations in feedwater chemistry. Integrated into multi-stage RO systems, it enhances overall plant efficiency and permeate consistency. Professional operators rely on this membrane for dependable performance during commissioning, ongoing operation, and capacity expansion efforts.

Role in Pilot Testing and Pretreatment Optimization
Pilot testing facilities use the BoKaWater BWFR-4040HR to validate system designs and pretreatment schemes for brackish water sources, including surface and groundwater. The membrane’s broad pH range and chlorine tolerance enable testing under diverse chemical conditions to optimize operational parameters. Its measurable performance data, such as permeate rate and salt rejection, provide critical feedback for pretreatment validation and process control. This facilitates fine-tuning of coagulation, filtration, and chemical dosing steps before full-scale deployment. By incorporating the BWFR-4040HR in pilot setups, engineers can reduce scale-up risks and improve water quality safety outcomes in final system designs.


FAQ

What is the BWFR-4040HR used for?
The BWFR-4040HR is a brackish water membrane element designed for desalination and water quality safety. It treats surface water and groundwater with salinity below 10,000 mg/L, including feeds with elevated organic and microbial content, delivering high salt rejection and stable permeate under varying feed conditions. It supports design, commissioning, pilot testing, and performance verification of brackish RO systems. See product family for BWFR-4040HR and the Brackish Water Membrane for Desalination and Water Quality Safety.

What operating parameters can BWFR-4040HR tolerate?
The BWFR-4040HR supports a broad operating window: up to 600 psi (4.14 MPa) and a maximum feedwater temperature of 45 C, with continuous pH tolerance of 2–11. It tolerates free chlorine up to 0.1 mg/L when pretreatment is properly implemented before membrane contact. This range enables reliable performance across varying source waters. Reference points include BWFR-4040HR and the Brackish Water Membrane for Desalination and Water Quality Safety.

Can this membrane be customized for my site?
Yes. The BWFR-4040HR is used in design, commissioning, pretreatment validation, pilot testing, and system integration with pretreatment and post-treatment stages. For site-specific configurations or quotation, contact our technical team to discuss compatible options and planned replacements, aligned with BWFR-4040HR and Brackish Water Membrane for Desalination and Water Quality Safety.

What is typical recovery, and what affects it?
Typical recoveries for brackish water applications are around 15%, varying with system design and pretreatment. Feedwater salinity, temperature, SDI, and pH influence recovery and permeate quality. Proper pretreatment and post-treatment integration help maintain steady performance for BWFR-4040HR and the Brackish Water Membrane for Desalination and Water Quality Safety.