Calculate the quantity of lime and soda
required for softening 50,000 litres of
water containing the following salt per
litre: Ca(HCO3)2 = 8.1mg, Mg (HCO3)₂ = 7.5 mg,
CaSo4= 13.6mg , MgSO4 =12.0mg, MgCl2 =2.0mg and NaCl=4.7mg
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Answer:
carbonate, Ca(HCO3)2 = calcium bicarbonate, Mg( HCO3)2 = magnesium ... lime and soda ash are added to water to raise pH to between 10.3 and 10.6, and ... Water is mixed gently with a small amount of energy.
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