Sunday 15. December 2019
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DESCALER® - How it works?


Our microprocessor based device DESCALER creates a frequency-modulated electromagnetic field inside the supply pipe. This field forces the dissolved calcium (magnesium) and bicarbonate ions to create the crystallizing nuclei of calcium (magnesium) carbonate in the bulk of the water. These microcrystals continuously grow (the snowball effect) and they flow with the water in the form of suspended particles. Their size and shape is much different to those formed in untreated water, they don`t stick at the piping walls, heating elements of boilers or washing machines and they remain in suspension until discharged to drain.

As the by-products of the precipitation of calcium carbonate (CaCO3) from the solution of calcium bicarbonate (Ca(HCO3)2) in the water, the carbon dioxide is released into the water. Carbon dioxide dissolved in unsaturated water (with much lesser amount of dissolved calcium ions) allows to dissolve and soften old scale layers in the pipes, heating elements, heat exchangers etc. Mechanical force of water flow accelerate this descaling process. The dissolving of old scale deposits requires the water flow through the pipes. If there is no flow, unsaturated water with carbon dioxide can not dissolve existing scale.

From this all results that after installation of DESCALER device in older water systems with scale deposits, the water from the tap may temporary contain even higher amount of calcium than untreated water. The time of descaling process depends on water usage (the higher usage, the faster scale removing). Usually this time is between one to three months.

DESCALER do not removes the minerals from the water. DESCALER only changes their structure in order to prevent scale formation.

PLEASE NOTE: Measuring of the water hardness by routine chemical titration method leads to the same result of treated as wel as untreated water.




high frequency modulated electromagnetic field Principle of electronic protection against scale. aragonite crystals with low adhesivity to any surface and therefore do not forming hard scale
incoming water saturated with calcium and other mineral ions
signal cable coiled externally around pipe solution less saturated with calcium and able to dissolve existing scale



Hard water and water scale formation:

Rain water always contents carbon dioxide (CO2) in small concentrations, which is absorbed from air. Such water is then able to dissolve calcium carbonate (CaCO3) while is in contact with rock material and calcium bicarbonate is formed:

Creation of calcium hydro-carbonate.

Water with higher content of alkali earth (Ca, Mg) (bi)carbonates is called as hard water. Using of hard water bring some technical problems indeed. Thus the calcium carbonate based water scale formation is very hard complication of hard water using. The scale formation is caused by precipitation of calcium carbonate from solution. Calcium bicarbonate dissolved in water is decomposed to carbon dioxide and calcium carbonate by treatment of higher temperature or by water saturation with air. In these cases the calcium carbonate is for the most part precipitated in its calcite form. This modification is liable to deposit in form of scale on water contacted surfaces.

transformation of calcium carbonate to calcite


Water hardness units conversion table:


Unit
°GH (°N)
(10 mg CaO/l)
°FH (°F)
(10 mg CaCO3/l)
ppm
(mg CaCO3/l)
mmol/l
(100 mg/l CaCO3)
°GH (°N) german hardness
(10 mg CaO/l)
1 1,78 17,8 0,178
°FH (°F) french hardness
(10 mg CaCO3/l)
0,56 1 10 0,1
ppm mg/l
(CaCO3)
0,056 0,1 1 0,01
mmol/l
(100 mg/l CaCO3)
56 100 10 1



These processes proceed usually on hot surfaces of water boilers, exchangers, pipes and fittings, but they are also in progress as a consequence of heat of friction. Scale growth worsen flow conditons and decrease a heat transfer. The hard deposits on the heating bodies of washing machines, boiler heat exchangers, etc. cause an increase in energetic demand (for a 4 mm thick layer up to 25%!) and substantial reduction in working life of the appliances.



Increase of energy consumption from scale thickness

Second problem of the hard water using is a decreasing of detergents efficiency due reaction of calcium ions with soap when the insoluble calcium salt of fatty acid is formed. Due its insolubility is such compound not able to serve as detergent. Using of untreated hard water lead to higher requirements of soaps, washing powders and technical detergents.

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