Which industries treat hard water before using it in their industrial processes?
I know that oil and iron industries do. Are there any more?
Answer:
The biggest users of treated water are power generation companies. Water used to make steam must have all the dissolved salts removed to prevent the boiler tubes getting scaled up. This is usually achieved by running the water through ion-exchange resins or through a reverse osmosis plant.
Any process where calcium and/or magnesium ions are a problem need to use soft (de-ionised ) water e.g. Agricultural chemical manufacture, detergent & soap manufacture where calcium salts are insoluble.
cosmetic and pharmaceutical manufacturers, also consumer goods and textiles. Basically anyone who uses water-soluble dyes.
The “hardness” salts of calcium and magnesium have low solubility and cause a variety of problems for a wide range of industries. Problems include:
• scale in cooling towers causing blockage
• scale in low pressure steam boilers reducing heat transfer efficiency
• fouling in reverse osmosis systems causing loss of performance
• scale in hot water calorifiers (heaters) reducing heat transfer efficiency
• scum in laundries reducing efficiency of detergents
• deposits in domestic hot and cold water services contributing to Legionella problems
• streaky deposits in glass and bottle washing
Regards, OurManInParis
http://www.veoliawaterst.com
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Answer:
The biggest users of treated water are power generation companies. Water used to make steam must have all the dissolved salts removed to prevent the boiler tubes getting scaled up. This is usually achieved by running the water through ion-exchange resins or through a reverse osmosis plant.
Any process where calcium and/or magnesium ions are a problem need to use soft (de-ionised ) water e.g. Agricultural chemical manufacture, detergent & soap manufacture where calcium salts are insoluble.
cosmetic and pharmaceutical manufacturers, also consumer goods and textiles. Basically anyone who uses water-soluble dyes.
The “hardness” salts of calcium and magnesium have low solubility and cause a variety of problems for a wide range of industries. Problems include:
• scale in cooling towers causing blockage
• scale in low pressure steam boilers reducing heat transfer efficiency
• fouling in reverse osmosis systems causing loss of performance
• scale in hot water calorifiers (heaters) reducing heat transfer efficiency
• scum in laundries reducing efficiency of detergents
• deposits in domestic hot and cold water services contributing to Legionella problems
• streaky deposits in glass and bottle washing
Regards, OurManInParis
http://www.veoliawaterst.com
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