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For some complex chemistries and where very pure water is required reverse osmosis (RO) is an effective treatment option. This can range from commercial units to small single tap treatment units and can remove a number of things including chlorine, aluminium, nitrates, chlorides and sodium.
Large scale and commercial reverse osmosis systems are able to re-process some of the waste-water making them more efficient, however all RO systems will create waste water and therefore the yield must be sufficient to support this. For more information regarding large or commercial units please contact the office.
Small domestic under-sink units can be installed easily with a designated drinking faucet providing a single treated supply at a relatively low cost.
Domestic RO systems will remove approximately 95% of the contaminants such as chlorine, nitrates, lead, fluorides, bacteria, viruses and unpleasant tastes and odours.
RO systems, in their basic form, consist of a pressure pump, housing and the membrane. Water is forced into the housing and the pure water is collected and used for service.
In most instances the full chemistry of the water needs to be understood in order to protect the membranes, we need to consider the following:
Particles > 5micron
Cl (chlorine) > 0.1ppm
Fe (iron) >0.05ppm
Mn (manganese) >0.05ppm
It is also recommended that the following parameters are considered as they can also reduce the life the membrane.
This small 4 stage system is typical of an under sink installation. The unit slowly produces treated water and stores it in a pressurised cylinder ready for use.
This is a small domestic 4-stage system installed under a kitchen sink that supplies a single dedicated drinking water tap.
This is a small/ medium scale reverse osmosis system that can supply treated water on demand. This size of unit is ideal for large domestic situations, pubs and small commercial concerns.
FWT supply and install large scale reverse osmosis systems, this unit supplies treated water to a small local hospital.
FWT supply and install large scale reverse osmosis systems, this system supplies treated water to large country estate and village.