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Reverse osmosis uses a semi permeable membrane; however, by applying pressure across the membrane, it concentrates contaminants (like a strainer) on one side of the membrane, producing clean safe water on the other. This is why RO systems produce both clean drinking water and waste water that is flushed from the system. Advantages: Reverse osmosis can remove dissolved minerals that cause hardness, toxic chemicals and other impurities. It can improve the taste of your water, plus treated water will not produce a mineral build-up in kettles and coffee makers. Reverse Osmosis units may remove contaminants such as: - Arsenic
- Barium
- Cadmium
- chromium
- Copper
- Cryptosporidium
- Entamoeba
- Fluoride
- Giardia
- Hexavalent Chromium
- Lead
- mercury Perchlorate
- nitrates
- Radium 226/228
- Selenium
- TDS (Total Dissolved Solids)
- Trivalent Chromium
- Toxoplasma
- Turbidity
Disadvantages: - May allow a few microbes to slip through
- Removes beneficial elements such as fluoride, magnesium, zinc, calcium, silica which should be added back
- Produces waste water from Impurities That Were In The Water.
They are washed down the drain. As the source water flows through the module, it is divided into two streams. One stream is forced through the membrane by osmotic pressure created due to the water pressure on each side of the semi-permeable membrane. The second stream carries the rejected salts, dissolved pollutants and contaminates to the drain.
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