The topic of water purification is raised quite a long time ago. Over the past ten years, it has been regularly covered in the media. The press and various TV shows sincerely try to help the consumer in finding possible solutions to the accumulated problems, but the questions remain much more than the answers. This situation has developed for several reasons. Firstly, the environmental situation around major cities is deplorable and continues to deteriorate. Additional confirmation of this – the mountains of garbage bags along all suburban roads and highways. Each problem requires an individual solution. It is impossible to find a certain method to solve the problems of sewage treatment and use it en masse. Finally, the water itself harbors a lot of the unknown, even though it occupies 2/3 of the Earth’s surface and makes up about 80% of the mass of our body. And yet its properties are gradually being studied, new methods of water purification and devices are beginning to be applied to water treatment. And it is necessary to acquaint readers and viewers with them.
According to the UN experts, the highest quality of drinking water today is in Finland, Canada and New Zealand (Russia is the seventh), the lowest – in Belgium, Morocco and India. In terms of its reserves per capita, Denmark (at the expense of Greenland), French Guiana and Iceland are leading. In this list, Russia is not even in the top ten, so it seems that it is time to reconsider ideas about our inexhaustible wealth in this area. Kuwait, Gaza Strip (Palestine) and the United Arab Emirates are the worst supplied with fresh water. In developed countries, the most expensive: by 2025, about half of the world’s population will experience problems with water, and by 2040 a product such as drinking water will surpass oil and natural gas in importance. This forecast was made by ITAR-TASS at the OSCE Economic and Environmental Forum’s two-day session that ended today here at the OSCE Deputy Head of Rosprirodnadzor Oleg Mitvol. I am water in Germany.
At home, without using special technical equipment, you can get not just enough clean drinking water, but also water that has healing and beneficial properties.
Purification of drinking water at home
1. Tap water, of course, almost always needs to be settled, as it is cleaned with chlorine. Even a few hours is enough to remove many volatile components. It is necessary to fill the jar with water and leave it for at least 5 hours. All this time, the water should be at rest, it can not be stirred and shake. Also, the water can still be cleaned.
2. You can purify water by the method of partial freezing. The fact is that first of all the most fresh and pure part of the water freezes, and after that it contains salts and various impurities.
In order to do this operation, take the water after settling, pour it into a bowl or pan and put on a sheet of plywood or cardboard in the freezer. It is important to calculate the time so that the water freezes to about half. This part will be used for cooking and drinking. In principle, this is also a method of separation, but it happens by changing the structure of water.
After that, the ice is melted at room temperature. Melt water also undergoes structural changes that create a healing effect.
And in the cold season, you can not clutter up the refrigerator and not waste energy, and use the forces of nature and freeze water in the open air. Melt water retains its healing properties the first time after thawing.
3. The method is well known to all, as settling. It is used to remove all volatile components (chlorine, hydrogen sulfide) and precipitate heavy impurities (calcium carbonate, some heavy metals, etc.). Settling does not give a complete separation of substances, but at least makes the water cleaner. The greatest effect in this case can be obtained if chlorinated water is supplied from the water supply system. To remove the volatile components, it is necessary to defend the water for at least two to three hours, and for the precipitation of heavy metals – at least 6 hours.
4. Take a high enough tin (not aluminum) tin can. Use a hammer to smooth the sharp edges of its hole (so that it is easier then to get the ice). Wash it thoroughly and pour tap water into it so that it does not reach the edge of about half a finger. Then close the hole with a saucer and place the jar in the freezer of the refrigerator on a sheet of plywood or cardboard. After 12-15 hours, the sides and bottom of the jar taken out of the freezer compartment pour hot water over it — an ice cylinder will fall out of the jar. Carefully chop the cylinder in two, after which a thin stream of warm water begins to stand on its turbid, yellowish core split in two, consisting of salts and impurities dissolved in tap water, until the halves of the transparent ice glass remain. Transfer them to another bowl.