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.
Evaporation is achieved in various ways. The main drawback of this method is the very high maintenance costs of the electricity needed to convert the water into the steam. In the process of steam formation with water molecules other solutes can enter the steam in line with their volatility. The basis of the process is the transfer of water in the vapour phase with its subsequent condensation.
Let’s consider the distillation.
The substance that boils at a lower temperature evaporates first. The substance that boils at a lower temperature evaporates first. As a result, if the water contains the oil drops they can be found also in the distillate. Due to this difference the water is separated. Organic substances, that have similar boiling point than that of water can slip in the distilled water. So here is the question. What’s happening in the process of distillation, is that the case? The water molecules have the boiling point of 100°C or 212° Other substances have different boiling points. Because the salt boils at a much higher temperature, most of us are aware that there are practically no salts in the distilled water. Ok, and now one of the most important parts. Theoretically after the distillation the absolutely pure water is obtained. Water distillers have pre and post water filters, in order to eliminate the poser of organic substances. Oftentimes when the water has already boiled out, the boiling point of various impurities is higher. Theoretically, they will begin to evaporate.
Distillation is used mainly in laboratories and factories, where Surely 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 stuff Distillation is used mainly in laboratories and factories, where I know it’s needed.
Filed Under. Deionized Water, Distilled Water