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| Polyvalent ions are rejected easier than monovalent ions. Organic solids with molecular weight greater than 300 are rejected by the membrane, but dissolved gases pass through. Reverse osmosis is a percent rejection technology. The purity of the product water depends on the purity of the inlet water. The purity of reverse osmosis product water is much higher than the purity of the feedwater.(see figure)
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| What is Ultra Violet (UV) ? Although we cannot see UV light or rays, we are exposed to them every time we step out into the sun. In fact, UV light is responsible for causing sunburns. Ultraviolet systems use special lamps that emit UV light of a particular wavelength in order to effectively disinfect water. UV light works by attaching the genetic core (DNA) of bacteria and viruses, destroying their ability to function and reproduce. The process is simple but effective, destroying 99.99 percent of harmful microorganisms without adding chemicals to the water. |
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