For a natural raw water containing the following water quality in the table. Check lecture 05 slides on page 52 to determine how much slaked lime is needed remove all hardness. Atomic weight molecular Concentration weight (g/mol) or 120 mg/L 100 mg/L as CaCO3 25 meq/L Ca2+ 40 Mg2+ 24 HCO3 61 O A. 5 meq/L ОВ. 700 mg-СаСОЗ/L O C. 15 meq/L O D. No lime is needed.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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For a natural raw water containing the following water quality in the table. Check
lecture 05 slides on page 52 to determine how much slaked lime is needed
remove all hardness.
Atomic weight
or
molecular Concentration
weight (g/mol)
120 mg/L
100 mg/L as CaCO3
25 meg/L
Ca2+
40
Mg2+
HCO3
24
61
O A. 5 meq/L
О В. 700 mg-СаСОЗ/L
O C. 15 meq/L
O D. No lime is needed.
Transcribed Image Text:For a natural raw water containing the following water quality in the table. Check lecture 05 slides on page 52 to determine how much slaked lime is needed remove all hardness. Atomic weight or molecular Concentration weight (g/mol) 120 mg/L 100 mg/L as CaCO3 25 meg/L Ca2+ 40 Mg2+ HCO3 24 61 O A. 5 meq/L О В. 700 mg-СаСОЗ/L O C. 15 meq/L O D. No lime is needed.
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