Products | Reverse Osmosis

What is Reverse Osmosis?

Reverse Osmosis / RO is a technology used to remove dissolved solids and impurities from water using a semi-permeable RO membrane which allows the passage of water but leaves the majority of dissolved solids and other contaminants behind. The RO membranes require water to be under high pressure (greater than osmotic pressure) to do this. The water that passes through the RO membrane is referred to as the "permeate" and the dissolved salts that are rejected by the RO membrane is referred to as the "concentrate". A properly run RO system can remove up to 99.5% of incoming dissolved salts and impurities.

How does Reverse Osmosis work?

Reverse Osmosis works by using a high pressure pump to increase the pressure on the salt side of the RO and force the water across the semi-permeable RO membrane, leaving almost all (around 95% to 99%) of dissolved salts behind in the reject stream. The amount of pressure required depends on the salt concentration of the feed water. The more concentrated the feed water, the more pressure is required to overcome the osmotic pressure.

The desalinated water that is demineralised or deionised, is called permeate (or product) water. The water stream that carries the concentrated contaminants that did not pass through the RO membrane is called the reject (or concentrate) stream.

What contaminants will Reverse Osmosis remove from water?

Reverse Osmosis is capable of removing up to 99%+ of the dissolved salts (ions), particles, colloids, organics, bacteria and pyrogens from the feed water (although an RO system should not be relied upon to remove 100% of bacteria and viruses). An RO membrane rejects contaminants based on their size and charge. Any contaminant that has a molecular weight greater than 200 is likely rejected by a properly running RO system (for comparison a water molecule has a MW of 18). Likewise, the greater the ionic charge of the contaminant, the more likely it will be unable to pass through the RO membrane. For example, a sodium ion has only one charge (monovalent) and is not rejected by the RO membrane as well as calcium for example, which has two charges. Likewise, this is why an RO system does not remove gases such as CO2 very well because they are not highly ionized (charged) while in solution and have a very low molecular weight. Because an RO system does not remove gases, the permeate water can have a slightly lower than normal pH level depending on CO2 levels in the feed water as the CO2 is converted to carbonic acid.

Reverse Osmosis is very effective in treating seawater, brackish water, surface and ground water for both large and small flows applications. Some examples of industries that use RO water include pharmaceutical, boiler feed water, food and beverage, metal finishing and semiconductor manufacturing to name a few.

 
 
 

Industrial RO System:

These machines normally using for drinking, tooth clinic, printing presses, hospital, villas and more...

alrayan designs and builds Industrial Reverse Osmosis systems (RO Systems) ranging in size from (1500 GPD) to more than (300,000 GPD) that can remove up to 99.5% of dissolved salts and virtually all colloidal and suspended matter from the most challenging feed water including municipal, brackish, and sea water applications. RO units produce a high quality water yield at a low cost compared to other purification processes.

Alrayan builds the RO system using only high quality components that will provide reliable long-term operation.

-Alrayan also offers fully self contained Reverse Osmosis systems that are built inside an shipping container that has been specifically modified for water treatment applications. These units are easy to ship and are fast and inexpensive to install. To assist our customers with an RO system we offer flexible financing designed to meet the customer's financial objectives. We also offer lease programs where we build, own and operate the system which allows you to focus on your core business while we ensure that you have an RO system that is producing a reliable source of high purity water at all times.

1500 TWRO:
  • Tap water only
  • 20&5 micron Cartridge filter
  • SS high pressure pump –
  • FRP Membrane housing –
  • Tap water TFC membranes
  • Flow control valve
  • Pressure gauges
  • Reject regulation valve, stainless steel
  • Flushing valve
  • Low pressure Cut-off switch
  • High pressure Cut-off switch
  • Permeate water TDS Monitor
  • Flow meters , Stubbed - Germany
  • Automatic Control panel
  • Double jumbo filter
3000GPD/TWRO
  • Tap water only
  • 20&5 micron Cartridge filter
  • SS high pressure pump –
  • FRP Membrane housing –
  • Tap water TFC membranes
  • Flow control valve
  • Pressure gauges
  • Reject regulation valve, stainless steel
  • Flushing valve
  • Low pressure Cut-off switch
  • High pressure Cut-off switch
  • Permeate water TDS Monitor
  • Flow meters
  • Double jumbo filter
5000GPD/BWRO

These machines are using for farms labour camps, factories, and we are purified the underground water on this system as the following:

  • Reject regulation valve, stainless steel
  • Flushing valve
  • Low pressure Cut-off switch
  • High pressure Cut-off switch
  • Permeate water TDS Monitor
  • Flow meters
  • Full Automatic control panel
  • Reject regulation valve, stainless steel
  • Flushing valve
  • Low pressure Cut-off switch
  • High pressure Cut-off switch
  • Permeate water TDS Monitor
  • Flow meters
  • Full Automatic control panel
10,000GPD/BWRO
  • 20&5 micron Cartridge filter
  • SS high pressure pump –
  • FRP Membrane housing –
  • Brackish water TFC membranes –
  • Flow control valve
  • Pressure gauges
  • Reject regulation valve, stainless steel
  • Flushing valve
  • Low pressure Cut-off switch
  • High pressure Cut-off switch
  • Permeate water TDS Monitor
  • Flow meters
  • Full Automatic control panel
30,000GPD/BWRO
  • 20&5 micron Cartridge filter
  • SS high pressure pump –
  • FRP Membrane housing –
  • Brackish water TFC membranes –
  • Flow control valve
  • Pressure gauges
  • Reject regulation valve, stainless steel
  • Flushing valve
  • Low pressure Cut-off switch
  • High pressure Cut-off switch
  • Permeate water TDS Monitor
  • Flow meters
  • Full Automatic control panel

Up to 300,000 gpd

 
 
 

Sea Water RO

Alrayan pure provide sea water (RO systems) in different capacities to suit the requirements of our customers. We have small size of RO system for ships and boats. These systems are designed to work efficiently and economically to produce high quality freshwater from seawater. Alrayan design and builds Industrial Reverse Osmosis systems (RO Systems) ranging in size from (3000 GPD) to more than (300,000 GPD) RO units produce a high quality water yield at a low cost compared to other purification processes. Also we fabricate containerized seawater Systems. Our systems are built into 20- and 40-foot containers that meet international quality standards.