BRACKISH WATER REVERSE OSMOSIS

Brackish Water Reverse Osmosis (BWRO) desalination plants are designed to treat ground/surface or industrial water with <5,000 mg/L of dissolved solids (TDS) and <30 mg/L of suspended solids (TSS), to achieve potable water quality. The standard treatment process involves pre filtration (auto-backwashing multimedia filters and cartridge filters), anti-scalant dosing to prevent membrane scaling, RO desalination and a CIP system for membrane cleaning.

Additional pre-RO and post-RO treatment steps may be added as required to suit feed water conditions and/or treated water quality requirements. BWRO plants are available as skid-mounted or containerised systems.

When it comes to effective brackish water desalination systems, Abrah Co delivers an exceptional industrial solution. If you have specific requirements for your Brackish Water Reverse Osmosis system, CONTACT US to discuss our custom-designed desalination plants.

STANDARD SPECIFICATIONS

Parameter Units BWRO-50 BWRO-100 BWRO-150 BWRO-250 BWRO-500 BWRO-1000
Permeate Flow Rate m3/day 50 100 150 250 500 1000
Permeate Recovery Rate % 60~85 (varies according to feed water quality and RO configuration)
Permeate TDS mg/L <500 (typical)
Raw Water TDS mg/L <5000
Raw Water TSS mg/L <30
Raw Water Temperature °C 15 ~ 35
Ambient Design Temperature °C 5 ~ 45 (-15 ~ 50 for insulated containerised system)
Feed Water Inlet Pressure kPa >15 (flooded suction)
Permeate Discharge Pressure kPa ~40 (higher discharge pressures available on request)
Brine Discharge Pressure kPa ~40 (higher discharge pressures available on request)
Power Supply - DC 380~450 V, 3 Phase, 50/60 Hz  
Power Consumption kW 4.1 7.7 10.5 15 29.5 52
No. Containers (Optional) - 1 x 20’ 1 x 20’ 1 x 40’ 1 x 40’ 2 x 40’ 2 x 40’

STANDARD INCLUSIONS + OPTIONS

✓= Standard Supply o = Optional Supply - = Not Applicable

Equipment BWRO-50 BWRO-100 BWRO-150 BWRO-250 BWRO-500 BWRO-1000
Skid Mounted Plant & Equipment
Low Pressure Feed Pump
High Pressure RO Pump
Pre-filtration Multimedia o
Ultra Filtration o o o o o o
Cartridge Filters
Anti Scalant Dosing System
Membrane CIP System
PLC Control System with HMI
Containerised system, c/w A/C & Lights o o o o o o
Container Insulation (walls & ceiling) o o o o o o
Container non-slip floor coverings o o o o o o
Container Side Access Door o o
Additional Pre-RO Treatment o o o o o o
Additional Post-RO Treatment o o o o o o
Premium Instrumentation Package o o o o o

 

Instrumentation Standard Package Premium Package
Pressure Gauges
Pressure Transmitters (4-20 mA) -
HP RO Pump Inlet Low Pressure Switch
Flow Gauges (Rotameters) -
Flow Transmitters (4-20 mA) -
Conductivity Transmitter (4-20 mA)
Float Switches (Feed/Permeate, Chemical Dosing & CIP Tanks)
Remote Monitoring & Control Capabilities -

 

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Abrah Co manufactures large reverse osmosis systems which are designed to eliminate high concentrations of contaminants in water. These contaminants range from total dissolved solids (TDS), salt, bacteria, proteins, metals, organic substances, dyes, and constituents that contain a molecular weight higher than 150-250 Daltons.

Abrah Co's comprehensive line of conventional and completely customizable brackish reverse osmosis systems are also engineered through computer modelling and process design technology for precise and tailor-made solutions. 

The parts that make up this large RO system include spiral membrane elements constructed from one or multiple membrane envelopes that are engrossed around a perforated central tube. The permeate flow is sent through layers of membranes into the envelope and makes its way to the central tube where it sits. The membrane layers are displayed in the picture to the right.

 

While smaller systems are designed for most commercial businesses and other lesser-scale applications, our large reverse osmosis system is produced to perfectly handle manufacturing and healthcare facilities of great proportions. Regardless of what type of system that you might require, a large reverse osmosis system is tailor-made to produce you the cleanest water for consumption or other use. 

The Filtration Phases of Large Reverse Osmosis Systems

A large reverse osmosis system generally consists of distinct filtration and carbon constituents. Carbon filters work in conjunction with a large RO system to eradicate chlorine, chloramines, disinfectants, VOCs, and pesticides that enhance the taste and odor of water. Commercial water softeners also help by softening water that prevents membrane fouling. This multi-filtration method ensures an extremely purified solution for the production of highly pure water.

Modern large reverse osmosis systems also incorporate pre-filters to eliminate sand, particulate matter, rust, and turbidity that are capable of causing damage to the membranes. It is crucial that you the steps to safeguard your membranes from these potential threats so they can do their work. RO membranes are very efficient in removing a wide range of salt, dissolved solids, lead, heavy metals, organic & inorganic substances, microorganisms. These membranes take in water forced through the system by a high-pressure pump that drives water flow into the pores of the semi-permeable membranes.

There is a storage tank and other water purification optionals that can be used such as uv sterilizers that kill biological organisms, water deionizer systems used as post-filtration to ensure ultra-pure water.

The Benefits of a Large Reverse Osmosis System

  • Enhanced flavor, smell and appearance 
  • Purifying procedure with high quality 
  • Takes out contaminants 
  • Conductivity/total dissolved solids decrease  
  • Brings down hardness in water  
  • Reduced price for high value   
  • Mitigates alkalinity

Other water treatment systems can minimize contamination and may take significant initiative to operate over time. These units also include additional pollution risks can arise if something fails with that specific system. Your water, however, remains fresher spotless through the use of reverse osmosis.

There are various utilizations that a large reverse osmosis system is suitable to handle in both industrial and commercial industries. Although everybody needs their water to be healthy water supply and nice drinking water, companies require clean water to make the most of their business operations. Food suppliers, health facilities, pharmaceutical companies and industrial cooling towers could all benefit from the reliably clean and fresh water provided by the method of reverse osmosis.

Large RO systems are capable of eliminating other impurities not known by many users such as flouride, arsenic, radium, nitrate, sulfate, potassium, and more. Once these substances are taken out by the membranes, they are discharged and flushed away.

Maintenance is made to be simple and extremely cost-effective. Users are only required to clean and change the RO membranes and filters in use on an occassional basis, including sanitizing the system itself. Our large RO system provides a user-friendly option to guarantee pristine water purification.

 

Operation Specifications:

  • Max. feed water temperature: 42°C

  • Feed water pressure: 20 to 80 psi

  • Operating pressure: 150 to 250 psi

  • Hydrogen Sulfide must be removed

  • Turbidity should be removed

  • Max. iron content: 0.05 ppm

  • Feed water TDS: 0 to 1,000 or 3,000 or 5,000 ppm

  • Equipment upgrade for TDS over 5,000 ppm

  • Hardness over 1 GPG requires antiscalant dosing

  • pH tolerance range: 3-11

  • Max. Silica Tolerance: 60 ppm @ 60% recovery

  • Operate at higher TDS by lowering recovery

Model Number

Permeate Flow Rate

Quantity of 8" Membranes

Motor Rating at 1,000 ppm

MGPD

M3/D

60Hz (hp)

50Hz (kw)

TW-1.0M-24680

1.00

3,785

144

100

75

TW-1.25M-24780

1.25

4,731

168

125

95

TW-1.5M-30780

1.50

5,677

210

150

120

TW-2.0M-37780

2.00

7,570

259

250

200

For more information, please view/download our "Data Sheet"

 

Standard Features:

Available Options:

  • Powder coated carbon steel frame

  • 8” TFC spiral wound membranes

  • Stainless steel multi-stage pump with TEFC motor

  • FRP membrane housings

  • 5 micron cartridge prefilter

  • 460V/3ph/60Hz power requirement

  • PLC based control panel

  • Programmable time delay and set points

  • Motor starter

  • NEMA 12 enclosure

  • Low pressure switch

  • High pressure switch

  • Liquid filled pressure gauges

  • Permeate conductivity monitor

  • Permeate & concentrate flow meters

  • Remote monitoring

  • Feed water conductivity monitor

  • Membrane cleaning skid

  • Automatic hourly flush

  • Feed/Permeate blending

  • Export crating

  • 380-415V/3ph/50 or 60Hz

  • Product tank level switch

  • pH & ORP controller with sensor

  • Water and hour meters

  • Chemical dosing systems

  • Media prefiltration systems

  • Ozonation and UV sterilization

  • Water softeners

  • Post deionization polishers

  • Containerized RO systems

APPLICATIONS

The RO series is most suitable for operating among these applications:

  • EDI Pre-treatment

  • Food and Beverage

  • Beverage Production and Bottled Water

  • Safe Drinking Water

  • Rinse Water

  • Spot Free Product Rinse

  • Electronics

  • Power Plants

  • Boiler Feed Water

  • Pharmaceutical

  • Mining Industry

  • Chemical Blending

  • Ice Manufacturing

  • Plating Operations

  • Cooling Towers

  • Laboratory Water Purification System

  • Ion Exchange Pre-treatment

  • Metal Finishing

 

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  • Energy efficiency with Dow Filmtec™ XLE membranes and Grundfos pump 
  • Reliable performance with quality components and engineering 
  • Individual project evaluation per request 
  • ISO 9001 certified factory 

The main equipment includes:
— Grundfos® high pressure pump
— Pressure vessels, valves, and other hardware 

Most necessary instrumentation is built-in. Additional plug-in equipment, membranes, and consumables are linked at the bottom of the page. Feel free to reach us out for more detail on this product!

Membranes are not included in the package!

The RO system is equipped with a controller and most necessary instrumentation. A range of options is available on request. Ecosoft RO systems offer great value in the following applications.

         

Applications

 

Benefits

ico_boiler.png Steam boilers Less boiler blowdown compared to ion
exchange softened water
ico_semi.png Semiconductor
manufacturing
Enhanced rejection of silica, boron, ammonia,
and other impurities compared to other
RO products
ico_pharma.png Pharmaceutical
manufacturing
Consistent rejection of pyrogens and toxic
constituents
ico_food.png Food processing Enhanced Dow Filmtec™ membranes and
raw water blending available optionally
ico_chem.png Chemical
manufacturing
Purified water is requisite for most processes
in chemical industry
ico_cooling.png Heat and
cooling circuits
Prevention of scaling and corrosion
due to hardness  and other impurities
ico_anod.png Galvanic and
electroplating
Used to obtain any grade of water for metal
finishing
ico_glass.png Insulation glazing Prevention of stains and scale on glass surfaces,
lower detergent usage
ico_textile.png Textile industry Used to obtain any grade of water for textile
process
ico_bottle.png Drinking water
bottling
Heavy duty Dow Filmtec™ membranes for
problem water with nitrate, ammonia, high TOC,
high TDS available as option
ico_irri.png Agriculture Demineralized water is most suitable for both
plants and irrigation systems
ico_fish.png Fish farms Optional raw water blending allows to fine tune
TDS, hardness, and alkalinity to specific
requirements
ico_building.png Utility water
treatment
RO water meets the EC Drinking Water
Directive and protects pipes and valves against
scaling, clogging and corrosion
ico_wash.png Laundry and
car wash
Prevention of stains and scale, cleaner
wash/laundry, lower detergent usage
ico_desal.png Desalination Dow Filmtec™ XLE membranes and Grundfos®
pumps offer lowest energy use per m3 permeate