Reverse
osmosis filtration system is used to treat ocean water,
waste-water, and even brackish, cloudy well water, to make them fit
for human consumption. This water purifying system is one of the most
advanced on the planet and is completely safe.
A good example of osmosis is the swelling of potatoes after you soak them in distilled water for some time. This indicates that the potatoes have absorbed the water, in a natural attempt to achieve a balance of water molecules in the potatoes and the distilled water outside. Reverse osmosis works the other way. It releases water molecules from a dense solution or source. However, reverse osmosis does not happen naturally. It needs applied pressure to push water molecules out of the dense solution.
Reverse
osmosis filtration is the forced pressurized movement of water
molecules from a dense solution, such as salty or contaminated water,
through a special cleansing membrane, in order to remove unwanted
minerals, and contaminants like harmful chemicals, bacteria and
viruses. Pressure is applied onto sea water, waste water or well
water such that it is forced through the membrane, which then allows
only molecules the size of water or smaller to pass through. The
membrane rejects contaminants with particles bigger than water
molecules.
The
true beauty of the reverse osmosis filtration system is its
simplicity. Unlike other water filtration systems, no harsh chemicals
are required. Double pass reverse osmosis allows for multiple
cleansing, while nanofiltration membrane systems can remove the
tiniest contaminants. The system may also be scaled up or down to
suit different needs, from large industries to households.
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