April 15, 2016 By Martin
Last updated on April 30, 2016
The oldest method for production of pure water is the thermal method or distillation -water evaporation from the surface and condensation.
The basis of the process is the transfer of water in the vapour phase with its subsequent condensation. In the process of steam formation with water molecules other solutes can enter the steam in line with their volatility. Evaporation is achieved in various ways. That said, the main drawback of this method is the very high maintenance costs of the electricity needed to convert the water into the steam.
Let’s consider the distillation.
The water molecules have the boiling point of 100°C or 212° Other substances have different boiling points. Theoretically after the distillation the absolutely pure water is obtained. Basically the water distillers have ‘preand’ post water filters, to eliminate the serious problem of organic substances. Remember, when the water has already boiled out, the boiling point of various impurities is higher. Theoretically, they will begin to evaporate. The substance that boils at a lower temperature evaporates first. You see, organic substances, that have similar boiling point than that of water can slip in the distilled water.
Ok, and now one of the most important parts. The substance that boils at a lower temperature evaporates first. Since the salt boils at a much higher temperature, So there’re practically no salts in the distilled water. And now here’s a question. What’s happening in the process of distillation? It’s a well being that this difference the water is separated. Known if the water contains the oil drops they can be found also in the distillate.
Distillation is used mainly in laboratories and factories, where That’s a fact, it’s needed. Reverse osmosis is widely used in water treatment plants, both in the apartments and for manufacture of various drinks, bottled water, and all that Distillation is used mainly in laboratories and factories, where That’s a fact, it’s needed.
Filed Under. Deionized Water, Distilled Water