RKIN AlcaPure, Manual, Page: 7 / 28

RO MEMBRANE
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HOW DOES THE mEmBRANE WORK?
Pressure is applied to the water on the inlet side of the semi permeable
membrane, so that part of it (RO water) will flow through the pores of
the membrane, while the rest of the water (water rejected with high salt
concentration) will be diverted back to the supply pitcher to recycle and
optimize performance.
Since the diameter of the pores of the membrane is less than 0.0001 microns,
only water molecules and a small amount of minerals (sodium, potassium,
calcium, magnesium, etc.) will pass through the membrane. Larger molecules
will be “rejected” from passing through the membrane.
Particle filter
5 µm
Particle filter
1 µm
Ultrafiltration
0.01 µm
Reverse
Osmosis
0.0001 µm
Bacteria
0.2 µm
Virus
0.02 µm