Production of pure water
It is easy to obtain 20-100 ml or 0.68 – 3.38 FL OZ of distilled water at home without water distiller. By using the water distiller at home or in the laboratory during the day you can produce tens of liters of pure water. But what to do when hundreds of liters are needed every day?
In the industrial production of pure water the following different methods of water purification are competing against each other: Deionization, Reverse Osmosis (RO water) and Distillation. Following is a brief overview of these methods.
Reverse Osmosis water purification
For the Reverse Osmosis water purification the semi-permeable membrane is used. The membrane allows passing through the clean water, but retains the dissolved salts. The speed of water treatment is limited to the rate of diffusion. Water with low solute concentration naturally flows through the membrane to the area of high solute concentration. This is known as an osmotic pressure. By applying the pressure to reverse the natural flow of solvent, we can get Reverse Osmosis (RO). The Reverse Osmosis (RO) technology of water purification nowadays is commonly used for drinking water purification and sea water desalination. Continue reading
Aqua Distillata or Distilled water
The world’s first ultra pure water, known in history of science as a “water of Kohlrausch,” was obtained in a golden bowl. But what is used in the modern laboratories? In laboratories, pharmacies, and clinics the water distiller with electric heating is used. The capacity depends but for example the home water distiller on average can produces about 1 U.S. gallon (3.785L) every 6 hours of distilled water. This water is suitable for the preparation of medicines, chemical solutions, spot-less washing purposes and acid batteries. You can use the distilled water at home for steam ironing, waterfalls, spot-less glass washing, spot-less car washing, engine cooling systems, vaporizers, lead-acid batteries and others. Continue reading
What is the distilled water? The pure, distilled water is missing a lot of components. Compared to conventional water, for example, with river water, the distillate water is missing a whole range of dissolved salts and gases.
And to be more precise, there is no pure water in the nature, even though water is the most common compound on the Earth. This paradox is explained quite simply: everything that we call water is nothing more than aqueous solutions of various substances. Water is a perfect solvent, and this kills it – in a chemically pure form the water is nowhere to be found. Even the rainfall on its short way to the ground has time to dissolve the oxygen and carbon dioxide, mix with dust and smoke. The transparent raindrops contain up to 0.005% impurities.
In the rivers the impurities are more. In the average city river, the dry residue can be 0.0124 oz or 350 mg per liter. In the oceans, the salt concentration can be up to 4%, but in the underground brine – more than 20%. Continue reading
You can compare the deionized water vs distilled water, but to say that the distilled water is the same as deionized water is a mistake. The terms “distilled water” and “deionized water” are often misunderstood. In this article, you can find the explanation to understand the differences and similarities of these two different water cleaning technologies.
The distilled water
The oldest method for production of pure water is the thermal method or distillation – water evaporation from the surface and condensation. Continue reading
The distilled water is acidic water
The distilled water is neutral just after the distillation, thereafter it tends to absorb the carbon dioxide (CO2) from the air and turns acidic, so if you still want to drink the distilled water, keep it in a closed bottle.
There are researches that prove that the best possible water for human consumption is alkaline water since the healthily human body is alkaline. To maintain the alkalinity level, the minerals like magnesium and calcium playing a big role in the human body because they are helping to maintain and balance the alkalinity in the body. The distilled water is aggressive solvent and acidic. If you drink the distilled water on a daily basis, it can start to reduce the amount of calcium and magnesium in the body. The human body is very clever. For example, if the car is short of gasoline, it stops, but it doesn’t happen with the human body. If some minerals are missing, the body starts to withdraw them from the skeleton. Continue reading
The idea to drink the distilled water is not new and has been discussed already for a long time. Most probably it comes from the belief that the distilled water is pure water and should be the best possible water for drinking because it’s free from all toxins and contaminants. The distilled water is really pure water, but it’s still not the best choice for human consumption and there are several reasons for that.
The distilled water doesn’t exist in the nature
Can you imagine somebody drinking the distilled water, let’s say, 100 years ago? At that time it was available only in some laboratories, but most of the people didn’t even suspect that it exists, despite they already know now to make the spirit drinks. The people drank the water which was available in the nature. And in the nature, there is no distilled water available. It can be more or less clean, but it always contains some solved minerals in it. Continue reading
Deionized water is water that does not contain any impurity ions. In fact it is perfectly cleaned water
Deionized water is produced by the chemical purification of the artesian water from salts, metals, trace elements and micro-particles using special ion exchange equipment.
Its purity degree it is much higher than that of distilled water obtained by distillation of ordinary water in the distiller.
Deionized water is used in microelectronics, for the dissolution of drugs in medicine. Deionized water is in the main ingredient of many shampoos and cosmetics. This water is very good solvent for a variety of pollution of any facade materials like glass, ceramic, brick, sandwich panels, wood, etc. Continue reading