How many pounds per day (lbs/day) of lime and soda ash need to be delivered daily to a plant treating groundwater with the following characteristics (do not worry about adding any safety factor, even though you would in the real world): Calcium Carbonate Hardness (CaCH) = 200 mg/L as Calcium Carbonate Magnesium Non-Carbonate Hardness 100 mg/L as Calcium Carbonate (Use soda ash; carbon dioxide is not an option) Alkalinity= 200 mg/L as Calcium Carbonate Flow Treated = 10 MGD The answers are expressed in units of lbs/day with lime first followed by soda ash O 4,800 and 3,100 O 22,600 and 31,000 O 15,000 and 7,400 O 18,500 and 8,800

How many pounds per day (lbs/day) of lime and soda ash need to be delivered daily to a plant treating groundwater with the following characteristics (do not worry about adding any safety factor, even though you would in the real world): Calcium Carbonate Hardness (CaCH) = 200 mg/L as Calcium Carbonate Magnesium Non-Carbonate Hardness 100 mg/L as Calcium Carbonate (Use soda ash; carbon dioxide is not an option) Alkalinity= 200 mg/L as Calcium Carbonate Flow Treated = 10 MGD The answers are expressed in units of lbs/day with lime first followed by soda ash O 4,800 and 3,100 O 22,600 and 31,000 O 15,000 and 7,400 O 18,500 and 8,800

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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Storm Sewers and Detention

The storm drains system transports rainwater or stormwater and other runoff from roads, parking lots, and roof downpipes directly to nearby creeks, rivers, or the sea without any treatment.

Question

How many pounds per day (lbs/day) of lime and soda ash need to be delivered daily to a plant
treating groundwater with the following characteristics (do not worry about adding any safety
factor, even though you would in the real world):
Calcium Carbonate Hardness (CaCH) = 200 mg/L as Calcium Carbonate
Magnesium Non-Carbonate Hardness = 100 mg/L as Calcium Carbonate (Use soda ash; carbon
dioxide is not an option)
Alkalinity= 200 mg/L as Calcium Carbonate
Flow Treated = 10 MGD
The answers are expressed in units of lbs/day with lime first followed by soda ash
O 4,800 and 3,100
O 22,600 and 31,000
O 15,000 and 7,400
O 18,500 and 8,800

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