Shown below are the results of water quality analyses of the Thames River in London. If the water is treated with 60 mg/L of alum to remove turbidity, how much alkalinity will remain? Ignore side reactions with phosphorus and assume all the alkalinity is in the form of bicarbonate. Milligrams per liter Constituent Total hardness Calcium hardness Magnesium hardness Total iron Copper Chromium Total alkalinity Chloride Phosphate (total) Silica Suspended solids Total solids pHº Expressed as CaCO3 CaCO3 CaCO3 Fe Cu Cr CaCO3 CI PO4 SiO₂ 260.0 235.0 25.0 1.8 0.05 0.01 130.0 52.0 1.0 14.0 43.0 495.0 7.4

Shown below are the results of water quality analyses of the Thames River in London. If the water is treated with 60 mg/L of alum to remove turbidity, how much alkalinity will remain? Ignore side reactions with phosphorus and assume all the alkalinity is in the form of bicarbonate. Milligrams per liter Constituent Total hardness Calcium hardness Magnesium hardness Total iron Copper Chromium Total alkalinity Chloride Phosphate (total) Silica Suspended solids Total solids pHº Expressed as CaCO3 CaCO3 CaCO3 Fe Cu Cr CaCO3 CI PO4 SiO₂ 260.0 235.0 25.0 1.8 0.05 0.01 130.0 52.0 1.0 14.0 43.0 495.0 7.4

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

Shown below are the results of water quality analyses of the Thames River in London. If the water is
treated with 60 mg/L of alum to remove turbidity, how much alkalinity will remain? Ignore side reactions
with phosphorus and assume all the alkalinity is in the form of bicarbonate.
Milligrams per liter
Constituent
Total hardness
Calcium hardness
Magnesium hardness
Total iron
Copper
Chromium
Total alkalinity
Chloride
Phosphate (total)
Silica
Suspended solids
Total solids
pHª
"Not in mg/L.
Expressed as
CaCO3
CaCO3
CaCO3
Fe
Cu
Cr
CaCO3
CI
PO4
SiO₂
260.0
235.0
25.0
1.8
0.05
0.01
130.0
52.0
1.0
14.0
43.0
495.0
7.4
E

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