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Water Purification Process

Thermal Phase Change Process - Distillation

The world's largest water purification system is all around us, although we may never really think about it. Look at the clouds, feel the rain and know that this is all part of the Hydorologic Cycle.

Cross section of water distillation machine

This process can best be seen on an island in the middle of the ocean. Take Guam, in the Western Pacific, for example. Guam is surrounded by hundreds of miles of salty sea-water. This sea water cannot be consumed due to its very high levels of toxins (about 35,000 parts per million of dissolved solids). When it rains in Guam the rainwater is zero parts per million of dissolved solids.

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How Did This Occur?

It’s due to the remarkable properties of H2O, stated simply:

  • H2O exists in the “solid phase” at <0o (ice)
  • H2O exists in the “liquid phase” between 0o and 100oC (water)
  • H2O exists in the “vapor phase” when it evaporates (evaporation or steam)

When the sun beats on the ocean it causes H2O is change to a vapor and evaporate. When H2O in the vapor phase leaves the liquid phase it leaves the contaminants behind. When the conditions are right the clouds release the H2O as rain and, absent air pollution, the rain is pure water.

This 3-step process is called the Hydrological Cycle and it has been operating for time immemorial.

This is a natural process operating according to the laws of physics and it provides water of amazingly high quality in a continuous cycle.

 

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Myths About Distilled Water

There are a lot of myths surrounding distilled water, but the reality is that there are many benefits to drinking distilled water. One of the main benefits is that the water produced is 99.9% pure, which means it is toxin free. Did you know that most tap water contains perhaps 15 - 40+ known contaminants that are still present in the water as it enters your home? If you want to drink pure water, distillation is the answer. Read more about the benefits of distilled water.