Reverse
osmosis
is a process wherein a solvent passes through a porous or
semipermeable membrane. To make this happen, high pressure is applied
to push water through the filters (and the RO membrane). Today, this
process is being used the world over to provide potable water for
municipal or city use.
Removing Impurities
With the help of reverse
osmosis machines or filters, water passes easily through the
membrane, leaving behind the insoluble impurities that makes
unfiltered water unsuitable for human consumption. These contaminates
include certain bacteria, pathogen, chemical contaminants and
industrial waste products, as well as minerals and metals that are
dangerous when taken in.
Prefiltration
As the water enters the
reverse osmosis (RO) system, it will go through a prefilter process
that takes care of any of the larger pieces of debris that can be
removed without the help of an RO in the first place. This way, the
RO membrane can be protected from getting overwhelmed with the amount
of debris plunged into it.
Into the Membrane
Now, the water can safely
pass into the membrane that traps the rest of the minerals and
substances that are too little for the prefiltration process. This is
so efficient in fact, that only oxygen and hydrogen molecules can
easily pass through it, thus ensuring that what you end up with is
water that’s as pure as it can be.
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