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Water chemistry - Coggle Diagram
Water chemistry
Range
soft water- less than 17PPM
Slight hard water- 17-50PPM
Moderate hard water- 50-120PPM
Hard water-120-180PPM
Very hard water-More than 180 PPM
Common impurities
Suspended particles
Biological impurities
Dissolved impurities
Excessive nitrate
Nomenclature
BOD- biochemical oxygen demand
Come Chemical oxygen chemistry
DO- dissolved oxygen
TDS- total dissolved solids
Hardness of water
Soft water
Hard water