WATER PURIFICATION
Lime is used in water treatment for precipitation, to raise the pH, and to adjust the hardness of the water. Raw water taken from municipal surface water or groundwater sources is purified and treated at a water treatment plant before it reaches the consumer.
The water is treated differently depending on the quality of the raw water. Lime products are often used in these contexts to raise the pH value of the water. Adding slaked lime induces precipitation of non-desired substances, such as humus, particles, and metals.
Research shows that minerals have a good effect on our health, especially calcium and magnesium supplements.
Slaked lime in combination with carbon dioxide is added to soft water from municipal sources to raise the alkalinity and the total hardness. |
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Another method is to let the water filter through a bed of limestone CaCO3 or dolomite CaMg(CO3)2. This protects water- and sewerage lines that require non-corrosive water.
With the health aspect in the background, here is another argument for using a natural product for water treatment.
Slaked lime can also be used to soften water and reduce its carbonate hardness Ð a method that has long been known in areas with hard water.
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