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Advantages and principles of reverse osmosis in water treatment?

Jun 13, 2018

Reverse osmosis can effectively remove inorganic substances, organic matter, bacteria, heat source and other particles dissolved in water, which is the most important part in the treatment of dialysis water.

To understand the "reverse osmosis" principle, explain the concept of osmosis first.

Infiltration is a solution of two different concentrations separated by a semi-permeable membrane.

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If the medium solute cannot penetrate the semi-permeable membrane, the lower concentration of the water molecules will reach the other side of the higher concentration, until the concentration of the two sides is equal.

Before haven't achieve balance, can be in higher levels of side pressure gradually, the state of the water of the molecules move temporarily stop, at this point the required pressure is called the "osmotic pressure, osmotic pressure)", if applied power is greater than the osmotic pressure, the movement of the water will reverse direction, namely flow from one side of a high concentration of low concentration of a side, this phenomenon is called "reverse osmosis".

Reverse osmosis purification effect can reach the level of ions, ion for the unit price (monovalentions) ruled out rate (rejectionrate) can reach 90% 98%, and bivalent ions (divalent ions) is 95% - 99% (can prevent molecular weight greater than 200 Doyle's substance through)