Question: FE Problem: To remove 3 0 m g L ( as CaCO 3 ) of calcium non - carbonate hardness, how much soda ash would

FE Problem: To remove 30mgL(as CaCO 3) of calcium
non-carbonate hardness, how much soda ash would be
added (in mgL as CaCO 3).
a.10mgL
b.15mgL
c.30mgL
d.60mgL
FE Problem: To remove 3 0 m g L ( as CaCO 3 ) of

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