What Is a Brackish Water Reverse Osmosis BWRO System?

Brackish water reverse osmosis (BWRO) system is a desalination process that uses high pressure to force brackish water through a semi-permeable membrane, removing dissolved salts, minerals, heavy metals, and microorganisms.

It converts brackish water into clean, low-TDS freshwater suitable for drinking, irrigation, and industrial use.

 

A BWRO system uses a semi-permeable RO membrane and high pressure to remove:

Dissolved salts

Minerals

Heavy metals

Organic matter

Bacteria and viruses

 

The result is clean, low-TDS water suitable for drinking, irrigation, industrial use, and commercial applications.

 

Brackish Water Reverse Osmosis (BWRO) systems are designed for treating higher-salinity water compared to standard freshwater RO systems.

The main differences include feed water quality, operating pressure, membrane type, and system configuration.

 

BWRO systems use high-pressure, brackish-water membranes with stronger salt rejection capacity.

Standard RO uses low-pressure membranes, mainly for municipal or tap water.

 

BWRO: 2000–19000 ppm

Standard RO: < 1500 ppm

BWRO is specifically built for water that is too salty or mineral-rich for normal RO systems.

 

1.Raw Water Intake / Pump

Source water is pumped into the system.ensures sufficient pressure for pretreatment.

 

2.Sand / Multimedia Filter

Removes suspended solids, sand, and turbidity.

Protects downstream equipment and membranes.

 

3.Activated Carbon Filter

Removes residual chlorine, organic matter, and odors.

Prevents damage to RO membranes.

 

4.Water Softener or Antiscalant Dosing

Prevents scale formation on membranes caused by hardness or high TDS.

Ensures stable operation and longer membrane life.

 

5.Cartridge / Micron Filter (5 μm)

Fine filtration to remove small particles before high-pressure pumping.

 

6.High-Pressure Pump

Increases water pressure to 8–18 bar, suitable for brackish water RO membranes.

 

7.BWRO Membrane System

Semi-permeable membranes remove 98–99% of dissolved salts.

Produces clean, low-TDS freshwater.

 

8.Post-Treatment (Optional)

UV Sterilizer: Eliminates bacteria and viruses.

Chlorination or Ozonation: Maintains water quality during storage.

 

Advantages / Benefits of Brackish Water RO (BWRO) Systems

Can a Brackish Water RO System Be Customized?

Absolutely! Every customer has unique requirements. When designing a brackish water reverse osmosis (BWRO) system, we take into account site conditions, water quality reports, and specific capacity needs to provide a tailor-made solution.

1. System Capacity

• Haiyuan BWRO systems can be designed for flow rates from 1,000 L/hr up to 50 m³/hr.

• Customers can choose the capacity that fits their needs precisely.

2. Limited Installation Space

• For clients with restricted site space, we can design compact, centralized systems that fit perfectly within the available area.

• Providing accurate site dimensions ensures smooth installation and operation.

3. Containerized Solutions

• BWRO systems can be installed directly inside 20ft or 40ft containers, offering a plug-and-play solution.

• Containerized systems are ideal for sites with limited space and provide a controlled, optimal environment for stable operation.

4. Desired Product Water TDS

• We can design the system to achieve specific TDS levels, whether for drinking water or industrial use.

• The design ensures consistent water quality according to customer requirements through professional process engineering and ongoing consultation.

Applications of Brackish Water RO (BWRO) System

• Industrial Process Water: Cooling water, production process water, and other industrial applications.

• Drinking Water: Communities, schools, hotels, and sports stadiums.

• Agricultural Irrigation: Providing clean water for crops and farmland.

• Food & Beverage Industry: Bottled water plants, food processing, and beverage manufacturing.

What Determines the Price and Cost of a Brackish Water RO System?

The cost of a commercial Brackish Water Reverse Osmosis (BWRO) system largely depends on feed water quality and the required product water quality. Different water qualities and treatment requirements affect the system design, components, and overall cost.

Common Cost-Influencing Components

• Chemical and pH Dosing – For water conditioning and scaling prevention.

• Chlorination Dosing – Disinfection and microbial control.

• Media Filter – Removes suspended solids and turbidity.

• Activated Carbon Filter – Eliminates chlorine, organics, and odor.

• Water Softener – Prevents scale formation on membranes.

• Antiscalant & Antifouling Dosing – Protects membranes from scaling and fouling.

• Advanced Control Systems – PLC, monitoring, and automation for stable operation.

• Advanced Instruments – Disk filters, flow meters, TDS, pH, and conductivity monitoring.

• Stainless Steel Skid or Frame – Ensures durable and corrosion-resistant construction.

• Blending Systems – Optional, for adjusting product water quality.

• Three-Phase Electrical System & Accessories – For industrial power requirements.

• UV Sterilizer or Ozone Generator – Post-treatment for disinfection.

• CIP (Clean-in-Place) System – For membrane cleaning and maintenance.

The more complex the pretreatment and post-treatment requirements, the higher the system cost. System size, production capacity, and automation level also significantly affect pricing.