You’re working on a preliminary design for a water treatment plant expansion for Fell City. The required capacity is 12 MGD (million gallons per day). The TSS of the sedimentation basin effluent is 16 mg/L of TSS. Assume the effluent TSS is 0 mg/L.(a) Based on a filtration rate of 2 gpm/ft2, how big (area) must the filters be?(b) If 3% of the treated water is used for backwashing, what would the backwash TSS be? (Set up a mass balance analysis.)(c) How many tons of sludge (dry solids) would be generated in 30 days? Answers: 4170 ft2, 533 mg/L, 24 ton

Given Data Discharge of water to be treated, Q=12MGD=12×10624×60=8333.33 gpmWater required for…

Answered: You’re working on a preliminary design…

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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You’re working on a preliminary design for a water treatment plant expansion for Fell City. The required capacity is 12 MGD (million gallons per day). The TSS of the sedimentation basin effluent is 16 mg/L of TSS. Assume the effluent TSS is 0 mg/L.

(a) Based on a filtration rate of 2 gpm/ft², how big (area) must the filters be?

(b) If 3% of the treated water is used for backwashing, what would the backwash TSS be? (Set up a mass balance analysis.)

Answers: 4170 ft², 533 mg/L, 24 ton

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