Question 1: You have been assigned to design primary clarifiers for a wastewater treatment plant. The average flow rate of the wastewater is 256000 m3/day with a BOD5 of 120 mg/L and suspended solids concentration of 300 mg/L. The goal is to remove 35% BOD5 and 60% suspended solids in primary treatment. Determine the following: 1) The diameter of the primary clarifier for a surface overflow rate of 50 m3/m2-day.2) The detention time in the primary clarifier and the mass of solids removed in kg/day.Assume a depth of 4m
Question 1: You have been assigned to design primary clarifiers for a wastewater treatment plant. The average flow rate of the wastewater is 256000 m3/day with a BOD5 of 120 mg/L and suspended solids concentration of 300 mg/L. The goal is to remove 35% BOD5 and 60% suspended solids in primary treatment. Determine the following: 1) The diameter of the primary clarifier for a surface overflow rate of 50 m3/m2-day.2) The detention time in the primary clarifier and the mass of solids removed in kg/day.Assume a depth of 4m
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question 1: You have been assigned to design primary clarifiers for a wastewater treatment plant. The average flow rate of the wastewater is 256000 m3/day with a BOD5 of 120 mg/L and suspended solids concentration of 300 mg/L. The goal is to remove 35% BOD5 and 60% suspended solids in primary treatment. Determine the following: 1) The diameter of the primary clarifier for a surface overflow rate of 50 m3/m2-day.2) The detention time in the primary clarifier and the mass of solids removed in kg/day.Assume a depth of 4m.
Transcribed Image Text:Question 1: You have been assigned
to design primary clarifiers for a
wastewater treatment plant. The
average flow rate of the wastewater
is 25000 m3/day with a BOD5 of 120
mg/L and suspended solids
concentration of 300 mg/L. The goal
is to remove 35% BOD5 and 60%
suspended solids in primary
treatment. Determine the following:
1) The diameter of the primary
clarifier for a surface overflow rate of
50 m3/m2-day.2) The detention time
in the primary clarifier and the mass
of solids removed in kg/day.Assume a
depth of 4m.
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