Membrane Technology

The importance of the process of osmosis cannot be overstated. Osmosis is a natural phenomenon, without which life would be made impossible. The osmotic process enables plants to absorb nutrients from the ground. In the human body, our kidneys purify the blood flowing in our veins by means of osmosis.

Despite the fact that osmosis was discovered and studied as early as 1850, it has taken us over 110 years, until 1960 to be able to apply the process of osmosis for water desalination.
Till recently, membrane filtration was considered as futuristic, expensive and complex process. However, in the past fifteen years there has been yeomen progress and this process has developed to a mature and reliable technique. This has resulted in the process being extensively utilized for water purification to obtain drinking water. Note: not all systems are created equal, such as the whirlpool water filters which are not always RO units.

To understand the process of osmosis takes a peek at the science book of a high school student. To explain in simple terms; when we are dealing with a system, consisting of two fluids that are separated by a semi permeable membrane (permeable, just not for salts) and we add salt on one side of the system, pure water will start flowing through the membrane. This flow will continue until the pressure is equal on both sides of the membrane. Afterwards the water level will be higher where the salt was added. The difference in water level, caused by the addition of a specific amount of salt, is called osmotic pressure. The osmotic pressure of seawater is around 26 bar - only for information.

Nitrate SQC 4 HF Cuno Nitrate SQC 4 HF Cuno
MM-TFC025I T300-250MNI-FV TGI MM-TFC025I T300-250MNI-FV TGI
Medium Filtration 155186 CW-F Medium Filtration 155186 CW-F
Install Kit UV Universal Water Treatment Install Kit UV Universal Water Treatment
High Flow Sediment HFCP-5 155196 High Flow Sediment HFCP-5 155196
Garden Mate GM-103 Garden Mate GM-103
Five Micron P5-20 American Plumber Five Micron P5-20 American Plumber
Filter Replacement FM-15R Filter Replacement FM-15R
FI-CTO010.A FI-CTO010.A
Everpure compatible E5620-P Everpure compatible E5620-P
CuZn Whole House Filter WH-IL CuZn Whole House Filter WH-IL
Cuno APRO-5000 AquaPure Replacement Cartridges Cuno APRO-5000 AquaPure Replacement Cartridges
Counter Top CT-445 Counter Top CT-445
Clack S7025 Microline Clack S7025 Microline
Carbon FI-GAC010 Carbon FI-GAC010
Avian S7011 S7028 S7025 S7026C-06 S7206-06C Replacements Avian S7011 S7028 S7025 S7026C-06 S7206-06C Replacements
Ametek RO-3167 Reverse Osmosis Water Filter Ametek RO-3167 Reverse Osmosis Water Filter
American Plumber Replacement W5P478 American Plumber Replacement W5P478
5 Microns BP-420-5 Filter Bag 155386 5 Microns BP-420-5 Filter Bag 155386
155319 USFilter WS-10 155319 USFilter WS-10

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Membrane Technology