Posted in
reverse osmosis membrane,
reverse osmosis systems,
water desalinisation,
water filter systems,
water filtration,
water purification
Reverse Osmosis is the most effective water filtration possible, the process uses pressure to force a solvent (such as water) through a membrane that retains the solute on one side and allows the pure solvent to pass to the other side.
Best known for removing the salt from sea water to get fresh water (desalinisation) Reverse Osmosis is also used to purify naturally occurring fresh water for industrial and medical processes.
The applications of Reverse Osmosis include; drinking water purification, aquarium keeping, hydrogen production, dialysis and various applications within the food industry.
What does a home based Reverse Osmosis System consist of?
To be effective home installed Reverse Osmosis Systems typically have 4 - 5 stages, most of the complexity of these units relates to the pre filters that are in place to prevent the Reverse Osmosis membrane becoming clogged up and becoming degraded and therefore prolong the systems life. The stages of a typical home based Reverse Osmosis System are as follows:
Is Reverse Osmosis appropriate for everyone?
By it’s very nature Reverse Osmosis is a wasteful process flushing away up to 1/3 of the water that passes through the system. Reverse Osmosis is definitely not appropriate for everyone, in the UK most people enjoy food grade quality water 24/7, if you are supplied via the mains then it’s likely that your water is absolutely fine to drink, if the water has a poor taste/smell then you could consider a carbon based filtration system which is more cost efficient than Reverse Osmosis. Disturbingly many UK homeowners are being encouraged down the route of Reverse Osmosis with the promise of pure water despite the fact that the system is generally considered to be overkill in most instances. If you intend to source your water from a private supply, or are in any doubt about your water quality we strongly advise you to contact your local water authority. Read more.
Best known for removing the salt from sea water to get fresh water (desalinisation) Reverse Osmosis is also used to purify naturally occurring fresh water for industrial and medical processes.
The applications of Reverse Osmosis include; drinking water purification, aquarium keeping, hydrogen production, dialysis and various applications within the food industry.
What does a home based Reverse Osmosis System consist of?
To be effective home installed Reverse Osmosis Systems typically have 4 - 5 stages, most of the complexity of these units relates to the pre filters that are in place to prevent the Reverse Osmosis membrane becoming clogged up and becoming degraded and therefore prolong the systems life. The stages of a typical home based Reverse Osmosis System are as follows:
- Sediment Pre Filter used to extract the larger contaminants from the water including dust, dirt, sand, rust particles and grit where present.
- Optionally a Secondary Carbon Pre Filter used to extract most of the chlorine and organic chemicals, providing enhanced reduction of taste and odour and helping to protect the RO membrane which is vulnerable to chlorine.
- The Reverse Osmosis Membrane normally made from a thin film composite (TFC) membrane.
- Optionally a Carbon Post Filter used to capture any chemicals still present and which will help against any tainting which may occur within the units water storage tank.
- Optionally an ultra-violet lamp is used to disinfect the water of any microbes that may have escaped the reverse osmosis membrane.
Is Reverse Osmosis appropriate for everyone?
By it’s very nature Reverse Osmosis is a wasteful process flushing away up to 1/3 of the water that passes through the system. Reverse Osmosis is definitely not appropriate for everyone, in the UK most people enjoy food grade quality water 24/7, if you are supplied via the mains then it’s likely that your water is absolutely fine to drink, if the water has a poor taste/smell then you could consider a carbon based filtration system which is more cost efficient than Reverse Osmosis. Disturbingly many UK homeowners are being encouraged down the route of Reverse Osmosis with the promise of pure water despite the fact that the system is generally considered to be overkill in most instances. If you intend to source your water from a private supply, or are in any doubt about your water quality we strongly advise you to contact your local water authority. Read more.
