//water and its treatment//
//example 2.18.51//
clc
Hardness=600//Hardness of water(mg/lit) or ppm//
H=Hardness/1000//Hardness of water(gms/lit)//
volume_NaCl=300//Volume of NaCl//
Wt_per_Litre=75//gms NaCl consumed by zeolite bed per litre//
total_wt=Wt_per_Litre*volume_NaCl//total gms NaCl consumed by zeolite bed//
CaCO3_equivalent=total_wt*50/58.5//in terms of (gms/lit)//
volume_hardwater=CaCO3_equivalent/H
printf("\nCaCO3 equivalent is %.2f mgs",CaCO3_equivalent*1000);
printf("\nQuantity of water softened using zeolite bed is %.2f litres",volume_hardwater);