Answer / powerplant.calculations

Water is basically the combination of 2 parts of Hydrogen & 1 part of Oxygen. It is very impossible to get pure water in the nature . Pure water does not exist in nature due to its characteristic as solvent. Number of matters like gases, minerals and organic materials dissolve in the water easily.
Water mixes with fine particles wherever it flows such as silt, sand, iron,mud & organics etc. Biological growths like algae & bacteria take place in the water. Thus, water is usually contaminated with dissolved & un-dissolved solids along with living matters!
Raw Water sources in nature:
Rain water:
Surface water:Rivers, Streams, Ponds, Lakes, and Reservoirs
Ground water :Springs, Shallow Wells and Deep Wells

Refer the link for more information
https://www.powerplantandcalculations.com/2020/05/power-plant-water-sources-impurities.html

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