Water is nature’s most wonderful, abundant and useful compound. Of the numerous essential elements for the existence of human being, animals and plants water is rated to be of the best importance. Without food, humans can survive for several days, but water is this kind of essential that without it one cannot survive.
Water is not only required for the lives of animals and plants, but in addition occupies a unique position in Industries. Probably its most critical use as an executive material is in ‘steam generation’ ;.Water can also be used as coolant in power and chemical plants. Garbage Truck Supplier In Bangladesh
along with it, water is widely utilized in other fields such as production of steel, rayon,paper,atomic energy,textiles,chemicals,ice and for air-conditioning,bathing,washing,irrigation,fire-fighting etc.
Hardness in water is that characteristic, which “prevents the lathering of soap” ;.This is due to presence of certain salts of calcium, magnesium and other heavy metals dissolved in it. Hard water when treated with soap doesn’t produce lather, but on the other hand forms a bright scum or precipitate. This precipitate is formed, due to formation of insoluble soaps of calcium and magnesium. Hardness is of two types-
- Temporary or Carbonate hardness.
- Permanent or non-carbonate hardness.
Temporary hardness can be removed by boiling but permanent hardness cant be removed by boiling so it need some sort of external treatment. Hard water gives two types of problem first is in domestic use and other in industrial use. Problem related to domestic is of drinking, bathing, cooking, washing. But on other turn in industries like Textile, Sugar, Dyeing, Paper, laundry, Pharmaceutical etc. suffers great problem with it.
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