Alexander, Yekaterinburg asks the question: Hello! Previously, we lived in the area, where the selection of tap water was carried out from the river. What is screaming, we were known only from the rollers advertising means of dealing with it. Not so long ago we moved to another settlement, and there the water is closed from the artesian well. We still can not get used to the new taste of water. But most of all depressing that after its boiling on the heating elements of the electric dishes, the walls are formed on the walls of household appliances, which is poorly removed and mounted with time. Neighbors said the local artesian water is rich in calcium. Tell me, please, how to clean the water from lime. Moreover, we read that such water is not only destructive for household appliances and dishes, but also harmful to health. Thank you. Expert answers:
Water purification station diagram.
Water saturated with calcium salts, with regular use, harm the body. Where the water pipes feed from rivers or lakes, there are no problems with high lime content in water.
The easiest way to clean it from calcium is boiling. After it, the liquid becomes much softer, as it is freed from minerals that fall into the sediment. They form a lime bloom on the surfaces. Water that has been boiling, you can use for cooking. It will not harm and household appliances.
Nevertheless, this method of cleaning is associated with many inconveniences. Boiling water takes time. In addition, its heating is associated with energy expenses. It should be remembered about the volume of fluid that you need to prepare. If the listed factors do not have much importance for you and you are ready to sacrifice to boiling by some capacity, you can safely lead water treatment in this way. There are funds to combat science. Acetic and citric acid dissolve the collapse on the dishes if adding them to the water, and it boils it.
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On how to clean the water at lime contained in it in large quantities can tell the chemists. The liquid is exempt from calcium salts when interacting with haired lime. Haired lime (Ca (OH) 2) reacts with calcium hydrocarbonate (Ca (NSO3) 2), and the result is purified from salts water and calcium carbonate (Caco3). After the chemical process, the water is defended, then it merges, and an insoluble precipitate remains in the dishes. It would be possible to assume that this method is most effective, however, for the cleaning reaction, you need to know the exact proportions of the reagents.
Instructions for the use of lactium paper.
Although far from every family there is a graduate chemist, choose the necessary volumes of reaction substances, can be experimed, gradually adding calcium hydroxide into water. After making each portion, the fluffs should be dipped into water a lactium paper (the instruction for its use is shown in Fig. 1). The perfect pH of drinking water is 7. This means that with such an acid-alkaline balance, the Lacmus will be painted in yellow.
If there is no sufficiently pulp in the dishes, the medium will remain alkaline and the water will not be sufficiently soft. In this case, the Lacmus acquires a rich green or blue color. If the color strips shifts into an orange and red spectrum, the acid medium prevails in water.
Of course, you can not forget about the most modern method of household water purification from lime. Currently, a variety of filter devices are produced, differing in a method of application, their resource and performance. The cheapest of them are filters-jugs. At the same time, their cartridges (on cleaning from the lime specialize in the cartridges with the mark "for rigid water") need a frequent replacement, and as they are contaminated, the filtration efficiency is reduced.
To process a large volume of liquid, it is better to install filters for the sink. It is better to equip them with membrane or osmotic cartridges. The membrane costs are somewhat cheaper than the osmotic, but the resource and the first, and the latter is practically no different.
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Buying devices for filtering water, choose them, not only focusing at the price of filters, but also on the basis of the cost of consumables, the possibility of connecting to the water supply, the volume of water you are going to make softer. Operation of filters of any type is associated with constant cost of replacing cartridges.