Shown below are the results of water quality analyses of the Thames River in London. If the water is treated with 58.5 mg/L of alum to remove turbidity, how much(mg/L as CaCO3) alkalinity will remain? Ignore side reactions with phosphorus and assume all alkalinity is HCO3.Expressed as Milligrams per litreCaCO3260.0ConstituentTotal hardnessCalcium hardnessMagnesium hardnessCaCO3235.0CaCO325.0Total ironFe1.8Cu0.05CopperChromiumCr0.01Total alkalinityCaCO3130.0ChlorideCi52.0Phosphate (total)PO41.0SilicaSiO₂14.0Suspended solids43.0Total solids495.0pHª7.4"Not in mg/L.Answer:

Answer We are given Alum dose = 58.5 mg/L Total alkalinity present = 130 mg/L We know that Alum…

Shown below are the results of water quality analyses of the Thames River in London. If the water is treated with 58.5 mg/L of alum to remove turbidity, how mu (mg/L as CaCO3) alkalinity will remain? Ignore side reactions with phosphorus and assume all alkalinity is HCO3. Constituent Milligrams per litre Expressed as CaCO3 260.0 Total hardness Calcium hardness CaCO3 235.0 Magnesium hardness CaCO3 25.0 Total iron Fe 1.8 Copper Cu 0.05 Chromium Cr 0.01 Total alkalinity CaCO3 130.0 Chloride Ci 52.0 PO4 1.0 Phosphate (total) Silica SiO₂ 14.0 Suspended solids 43.0 Total solids 495.0 pH₂ 7.4 "Not in mg/L.

Shown below are the results of water quality analyses of the Thames River in London. If the water is treated with 58.5 mg/L of alum to remove turbidity, how mu (mg/L as CaCO3) alkalinity will remain? Ignore side reactions with phosphorus and assume all alkalinity is HCO3. Constituent Milligrams per litre Expressed as CaCO3 260.0 Total hardness Calcium hardness CaCO3 235.0 Magnesium hardness CaCO3 25.0 Total iron Fe 1.8 Copper Cu 0.05 Chromium Cr 0.01 Total alkalinity CaCO3 130.0 Chloride Ci 52.0 PO4 1.0 Phosphate (total) Silica SiO₂ 14.0 Suspended solids 43.0 Total solids 495.0 pH₂ 7.4 "Not in mg/L.

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

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Shown below are the results of water quality analyses of the Thames River in London. If the water is treated with 58.5 mg/L of alum to remove turbidity, how much
(mg/L as CaCO3) alkalinity will remain? Ignore side reactions with phosphorus and assume all alkalinity is HCO3.
Expressed as Milligrams per litre
CaCO3
260.0
Constituent
Total hardness
Calcium hardness
Magnesium hardness
CaCO3
235.0
CaCO3
25.0
Total iron
Fe
1.8
Cu
0.05
Copper
Chromium
Cr
0.01
Total alkalinity
CaCO3
130.0
Chloride
Ci
52.0
Phosphate (total)
PO4
1.0
Silica
SiO₂
14.0
Suspended solids
43.0
Total solids
495.0
pHª
7.4
"Not in mg/L.
Answer:

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