Water Challenges: The characteristics of chemicals throughout groundwater is determined by the gases and minerals reacting with the water in its generally slow passage through the Earth’s crust. Extensive variations in groundwater quality are brought by many variables in various water sources. Dissolved minerals such as silica and sulphate produce corrosiveness among water which leads to the deterioration of water treatment equipment, steam boilers, water pipes, etc. Measures to avoid this from occurring involves utilizing active agents that work to minimize these unwanted effects and maintaining pH stability in treated water. If properly treated, the feed water will reach a balance where the additional of more dissolved substances will no longer occur.

Applied Solution: Pure Aqua manufactures reverse osmosis systems that are designed to target and eliminate elevated levels of silica and sulphate. Reverse osmosis has become the main water treatment method for the removal of these compounds, desalination, and industrial wastewater. RO systems provide great versatility and ubiquity in complex industrial applications, specifically ones that involve removing scaling and fouling substances such as silica and sulphate.

Low operating cost, compact size, reduced footprint, and high quality production of freshwater.

Coutnry: UAE

System/Product: Commercial Brackish Reverse Osmosis

Components & Brands:
– Fifteen RO200 units 

Estuaries and river openings are places where brackish water can be found. This type of water lies in between fresh water and seawater. It’s not as clean as fresh water, yet not so highly concentrated in salt as seawater. Even if it has a mild salt concentration, it is still not encouraged for consumption.

Pure Aqua manufactured and supplied 15 Commercial brackish water RO units to a major water treatment company in Dubai.

• Minimal civil work and construction
• Small footprint
• Plug and play installation
• High-quality components (Grundfos pumps, DOW Filmtec membranes, Codeline vessels, Pure Aqua microprocessor control panel)
• High recovery design
• High rejection membranes
• Low energy and chemical consumption

Pure Aqua successfully manufactured and supplied to a major water treatment company in Dubai UAE, more than 15 units of Commercial Brackish Water Reverse Osmosis (BWRO) Units to produce different capacities between 1,500 GPD to 6, 000 GPD at a maximum 2000 ppm feed water TDS. Reverse osmosis occurs when the water is moved across the membrane against the concentration gradient, from lower concentration to higher concentration. To illustrate, imagine a semi-permeable membrane with fresh water on one side and a concentrated aqueous solution on the other side. If normal osmosis takes place, the fresh water will cross the membrane to dilute the concentrated solution. In reverse osmosis, pressure is exerted on the side with the concentrated solution to force the water molecules across the membrane to the fresh water side.

 PERFORMANCE

 From a feed TDS of 2,000 mg/L at temperature range of 25 °C, the system produces from 1.2 to 7gpm of high quality water at less than 100 ppm.

Reverse osmosis is often used in commercial and residential water filtration. It is also one of the methods used to desalinate seawater. Sometimes reverse osmosis is used to purify liquids in which water is an undesirable impurity (e.g., reclaimed waste water, ethanol).

The BWRO Unit consists of TFC spiral wound membranes to have a recovery rate of 60% with an advanced microprocessor control panel.

• Minimal civil work and construction
• Small footprint
• Plug and play installation
• High-quality components (Grundfos pumps, DOW Filmtec membranes, Codeline vessels, Pure Aqua microprocessor control panel)
• High recovery design
• High rejection membranes
• Low energy and chemical consumption

Each unit has the capacity to clean water with a TDS of 2,000 ppm or lower, being able to clean tap water and high salinity water. All of these units are designed to operate at a temperature range of 25 Celsius or above. These systems are capable of removing salts and other impurities with a molecular weight greater than 150-250 Dalton. The feed water first passes through a heavy duty 5 micron sediment filter to remove odor and taste, it then goes through an RO membrane for the separation of salt and water. In the final stage the water gets post treated through an ultra violet sterilizer to disinfect the water before consumption. Each unit is equipped with a low and high pressure switch for safety precaution.

Country: UAE

System/Product: Commercial Brackish Water Reverse Osmosis System

Flow Rate: 6,000 GPD

Components & Brands:
–  Fifteen RO200 units

Brackish water is water that is taken from estuaries and river openings. It salt concentration falls in between fresh water and seawater. Not as pure as fresh water, yet not as salty as seawater. Its mild salty concentration is discouraged for human consumption. To generate purified water from brackish water, a water filtration system relies on a method called “reverse osmosis”.

Pure Aqua successfully manufactured and supplied to a major water treatment company in Dubai UAE, more than 15 units of Commercial Brackish Water Reverse Osmosis (BWRO) devices. Each model was designed to produce different capacities between 1,500 GPD to 6,000 GPD at a maximum 2000 ppm feed water TDS. Reverse osmosis is often used in commercial and residential water filtration. It is also one of the methods used to desalinate seawater for industrial and commercial usage.

• Minimal civil work and construction
• Small footprint
• Plug and play installation
• High-quality components (Grundfos pumps, DOW Filmtec membranes, Codeline vessels, Pure Aqua microprocessor control panel)
• High recovery design
• High rejection membranes
• Low energy and chemical consumption

Country: UAE

System/Product: Reverse Osmosis

Flow Rate: 1,500 GPD

Brackish water is water that is taken from estuaries and river openings. It salt concentration falls in between fresh water and seawater. Not as pure as fresh water, yet not as salty as seawater. Its mild salty concentration is discouraged for human consumption. To generate purified water from brackish water, a water filtration system relies on a method called “reverse osmosis” for assistance.

Pure Aqua manufactured and supplied commercial Reverse Osmosis Systems to a major company in Dubai. The system was built to produce 1,500 GPD.

• Minimal civil work and construction
• Small footprint
• Plug and play installation
• High-quality components (Grundfos pumps, DOW Filmtec membranes, Codeline vessels, Pure Aqua microprocessor control panel)
• High recovery design
• High rejection membranes
• Low energy and chemical consumption

The overall reverse osmosis water treatment plant design used a total of 378 reverse osmosis low-pressure membrane elements housed in 54 pressure vessel assemblies.

The plant is designed as three identical stand alone operating trains which provide more operating flexibility. Reverse Osmosis also known as hyper filtration, is used to purify water and remove salts and other impurities. It is also capable of rejecting bacteria, sugars, proteins, dyes, and other constituents that have a molecular weight of greater than 150-250 Dalton. A full line of brackish and seawater reverse osmosis can be viewed under our reverse osmosis systems

SYSTEMS & PROCESS

Feed water to the system is processed water with raw water TDS about 1250 PPM.  The system design was based on high rejection TFC spiral wound low fouling membranes.

The Brackish Reverse Osmosis unit consists of 5-micron cartridge filters to reduce feed water Silt Density Index (SDI) and to limit the SS to 5-micron size. It also includes RO membranes feed high pressure pump and TFC spiral wound membranes to reduce the TDS.

PERFORMANCE

The RO membranes remove total dissolved solids (TDS), TOC, BOD and COD after MBR. The RO membrane permits the passage of water molecules but is a barrier to most of the ions, viruses and bacteria in the water.

Country: UAE

System/Product: Brackish Water Reverse Osmosis

Flow Rate: 3x 528,400 GPD

Components & Brands:
– Pre and post treatments
– PLC control panel
– Fiber reinforced pressure vessels
– Grundofs multi stage pump

As municipalities seek new water sources to augment fresh water supplies, water reuse and reclamation are gaining in popularity. Reuse is an economic and environmentally sound solution that uses less energy and reduces overall waste compared to the alternative solution, seawater desalination.

In September 2008, Pure Aqua successfully manufactured and supplied three Industrial Brackish Water Reverse Osmosis (BWRO) Units for reclaimed water, Dubai, UAE. Brackish Water Reverse Osmosis Units are designed to produce 3 x 2000 m3/day. The complete BWRO Units were supplied with pre and post treatment using advanced PLC control.

Low-pressure membranes based processes for water reuse have been proven to meet stringent standards. Their advantages include: a physical barrier to biosolids, pathogens, bacteria and nutrients; the flexibility to handle changing wastewater characteristics and plant capacities; fully automated and simple operation; a significant reduction  in  footprint  and  operating  costs,  delivering  the  lowest  cost  per  volume  treated.  Low-pressure membranes  are  commonly  used  for  post-secondary  clarification  processes  for  tertiary  filtration,  and  after biological processes such as membrane bioreactors (MBRs).

Industrial Brackish Water Reverse Osmosis Machines 3 x 528,400 GPD – UAE – Case Study

Country: UAE

System/Product: Brackish Reverse Osmosis  

Flow Rate: 5 X 1,500 GPD

Components & Brands
– Advanced microprocess control panel 

Brackish water is water that is taken from estuaries and river openings. It salt concentration falls in between fresh water and seawater. Not as pure as fresh water, yet not as salty as seawater. Its mild salty concentration is discouraged for human consumption. To generate purified water from brackish water, a water filtration system relies on a method called “reverse osmosis” for assistance.

Pure Aqua supplied 3 units of highly brackish BWRO systems for a major company in Dubai; capacity (5 X 1500 GPD) with advanced microprocessor control panel.

• Minimal civil work and construction
• Small footprint
• Plug and play installation
• High-quality components (Grundfos pumps, DOW Filmtec membranes, Codeline vessels, Pure Aqua microprocessor control panel)
• High recovery design
• High rejection membranes
• Low energy and chemical consumption

Country: UAE

System/Product: Brackish Water Reverse Osmosis

Flow Rate: 5 X 1,500 GPD

Components & Brands:
– Microprocessor control panel 

Water Challenges: The characteristics of chemicals throughout groundwater is determined by the gases and minerals reacting with the water in its generally slow passage through the Earth’s crust. Extensive variations in groundwater quality are brought by many variables in various water sources. Dissolved minerals such as silica and sulphate produce corrosiveness among water which leads to the deterioration of water treatment equipment, steam boilers, water pipes, etc. Measures to avoid this from occurring involves utilizing active agents that work to minimize these unwanted effects and maintaining pH stability in treated water. If properly treated, the feed water will reach a balance where the additional of more dissolved substances will no longer occur.

Pure Aqua supplied 10 units of commercial reverse osmosis systems for brackish water treatment (BWRO systems) for a major company in Dubai; capacities range between 2,500 GPD to 10,000GPD with microprocessor control panel.

• Minimal civil work and construction
• Small footprint
• Plug and play installation
• High-quality components (Grundfos pumps, DOW Filmtec membranes, Codeline vessels, Pure Aqua microprocessor control panel)
• High recovery design
• High rejection membranes
• Low energy and chemical consumption

From a feed TDS of about 2,450 mg/L at temperature range of 25°C, the system produces 90,000 gpd of high quality water at less than 50ppm. Since the time of its start-up in January 2008, the apparatus has been running smoothly with minimal troubleshooting.

Country: UAE

System/Product: Industrial Brackish Water Reverse Osmosis 

Flow Rate: 90,000 GPD

Date: February 2008

Estuaries and river openings are places where brackish water can be found. This type of water lies in between fresh water and seawater. It’s not as clean as fresh water, yet not so highly concentrated in salt as seawater. Even if it has a mild salt concentration, it is still not encouraged for consumption.

The Industrial Brackish Water Reverse Osmosis apparatus was manufactured and supplied by Pure Aqua in January 2008 for a major water treatment company in Dubai. The BWRO apparatus has a capacity of 90,000GPD product water.

• Minimal civil work and construction
• Small footprint
• Plug and play installation
• High-quality components (Grundfos pumps, DOW Filmtec membranes, Codeline vessels, Pure Aqua microprocessor control panel)
• High recovery design
• High rejection membranes
• Low energy and chemical consumption

Date: November 2012

Country: UAE

System/Product: Commercial Reverse Osmosis Filtration

Flow Rate: 1,500 GPD; 5,000PPM

Component & Brands:
– 4 RO systems (RO-200: BW-1.5K-140)
–  Microprocessor control panel

Brackish water can be discovered in areas such as estuaries and river openings. Brackish water falls in the middle between fresh water and seawater. It isn’t as clean as fresh water, yet it isn’t as salty as seawater. Since brackish water is moderately salty, it isn’t encouraged for consumption. To produce purified water from brackish water, a reverse osmosis system relies on a process called “reverse osmosis” for assistance.

Four identical commercial RO water filtration systems where supplied to a major company in UAE to treat well water. The BW-1.5K-140 systems were each designed to produce 1,500 GPD at a feed water TDS of a maximum 5,000 ppm, they were chosen from our RO-200 series and were controlled by a microprocessor control panel. Since their initial startup, the systems have been operating properly with minimal mode troubleshooting.

• Minimal civil work and construction
• Small footprint
• Plug and play installation
• High-quality components (Grundfos pumps, DOW Filmtec membranes, Codeline vessels, Pure Aqua microprocessor control panel)
• High recovery design
• High rejection membranes
• Low energy and chemical consumption