The process of water penetration through the membrane is called an osmosis process. Without such membranes there would not be biological life on Earth. Such membranes are built organisms cells . The osmosis phenomenon lies at the basis of substances exchange in all living organisms. Thanks to this every living cell receives nutrients and vitamins, in the opposite direction it outputs waste products. Osmosis process can be reversed and than this process named reverse osmosis.
The Reverse Osmosis (RO) systems are used around the world for drinking water quality, from the early 1970s. First units of reverse osmosis filter have been designed in order to seawater desalination witch works under applied high pressure (60 bar); it can be said – hyper-pressure. Therefore, the process of Reverse Osmosis (RO) in other words is called a “hyper filtration”, that is meaning super-clean. Further the process went to the side of size reducing, roughly the same time with degradation the tap water quality due to its pollution. And soon there was a reverse osmosis water filter had available to everyone. Indeed, the modern hyper filtration systems are designed to clean tap or well water from the various harmful impurities. Harmful contaminants (nitrates, heavy metals, etc.) are filtered out by a semi-permeable barrier (RO membrane) so the consumers get clean and safe water.
Reverse osmosis systems provides a much higher degree of water cleaning than the more traditional filtering methods which based on mechanical filtering and absorption substances which used activated carbon.
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