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The perception of soft water by users of commercial / industrial will beyond simply preventing flaking. Water containing divalent calcium and magnesium likely to leave a hard residue when heated or evaporated. Not refer to this type of water as hard water. Hardness can be either temporary, which is associated with ion weak acid, bicarbonate, or permanent, which is associated with strong acid anions such as sulfate or chloride. Hardness time is so well known because it can be easily reduced simply by heating the water and salt making soluble bicarbonate insoluble carbonate salt: Ca (HCO3) 2 ? CaCO3 + CO2 + H2O Gas Water Hardness Scale This explains why they form scales in boilers and dishwashers, and why the boiler water often uses a dealcalizador at first, along with a softener for reduce both the formation of scales and the evolution of a acid vapor (which contains CO2) that can corrode pipes and equipment which is downstream. Smoothing by alone will not reduce the corrosiveness of the steam produced, and through alkaline water. Flaking The salts of calcium and magnesium bicarbonate are soluble, but there is as dry salts. When water evaporates, even at ambient temperatures, baking becomes insoluble carbonate. When hard water is simply left to dry (such as when a wet lawn sprinkler a car) will form a hard scale and difficult to remove, the which is the reason why in laundering operations dry hand vehicles and metal surfaces glass to prevent unattractive spots. In addition, water that evaporates on the surface of a layer pools Hard water level scales. The permanent hardness reacts differently. It is not as susceptible to flaking with heat, although the scales of gypsum (calcium sulfate) can formed in water with high sulphate content. Furthermore, Gypsum can form when the high-resolution Calcium sulfate is concentrated, for example on the surface of reverse osmosis membrane. The calcium chloride salt (CaCl2) is more soluble in water than common salt, chloride sodium. CaCl2 is not precipitated in any conditions, but not last long because it is crystal- deliquescent salt, ie absorb enough moisture of the atmosphere to dissolve in a liquid. For this reason, it is often preferred to sprinkle salt on the streets not paved to mitigate dust. Sources containing pure water hardness, permanent would be very rare and absorb CO2 from the air enough to become temporary hardness when exposed to air. If alkalinity total exceeds the total hardness, toughness is all temporary. If hardness exceeds alkalinity, hardness will be present both temporary and permanent hardness. Both the temporary hardness and permanent hardness have adverse reactions to the soap, which form a curd insoluble soap, which we recognize as a bathtub ring. The Soap is basically a sodium salt of an organic complex and is soluble in water. Hardness salts are divalent very soluble. The soap acts as an ion exchanger and includes the most highly selective divalent ion. Each time together hard water and soap must be provided sufficient soap to precipitate all the hardness, and then enough to carry out the work of cleaning detergent. Soap and precipitates tend to be dirt as leftovers, creating fabrics rough and tough, highly alkaline sheets, which can irritate skin. In the shower, soap and shampoo wash seem more easily with hard water. But does this really happen? No! remain in the skin as alkaline residue and this may Irritation of the skin and brittle hair. In addition, many cleaning products use reinforcements alkali to raise the pH of the cleaning bath because oils and dirt more easily cleaned in water high pH. However, the higher pH also converts bicarbonate salt in a carbonate salt, which then precipitates. At even higher pH, all forms of hardness precipitate. This is the reason why you can not use water hard to regenerate the anion in a deionization (DI) using sodium hydroxide. Water users for personal or processes industry are aware of the difficulties encountered when using hard water. These include additional costs for replacement equipment due to the formation of scales and labor required to remove additional deposits. In addition, there restricted flow problems in pipes due to presence of scales and additional power requirements in heaters and boilers. It is estimated that hard water at home add $ 40 per year in additional labor. One can summarize the advantages of using soft water simply by listing the disadvantages of using hard water . Hard water is precipitated in the form of flakes carbonate when heated. . The hardness of a precipitate with a high pH. . The hardness of a precipitate to concentrate. . The hard scales are formed by simple evaporation hard water. . Hard water reacts with soap to form a insoluble soap curd Plantas Purificadoras de agua in Mexico and Grupo Purificadoras of Mexico
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Plantas Purificadoras en Mexico
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