A mechanically cleaned bar screen is used in preliminary treatment forthe following conditions:Wastewater flow rate = 100,000 mldApproach velocity = 0.6 m/sOpen area for flow through the screen = 1.6 m2Head loss coefficient for clean screen 0.753DHead loss coefficient for clogged screen 0.60Incline from vertical = 0°%3Da. Calculate the clean water head loss through the bar screen.b. Calculate the head loss after 40% of the flow area is cloggedwith solids.

The given data is as follows: Wastewater flow rate=100,000 m3/dApproach velocity=0.6 m/sOpen area…

A mechanically cleaned bar screen is used in preliminary treatment for the following conditions: Wastewater flow rate 100,000 m/d Approach velocity = 0.6 m/s Open area for flow through the screen 1.6 m2 Head loss coefficient for clean screen 0.75 Head loss coefficient for clogged screen 0.60 Incline from vertical = 0° a. Calculate the clean water head loss through the bar screen. b. Calculate the head loss after 40% of the flow area is clogged with solids.

A mechanically cleaned bar screen is used in preliminary treatment for the following conditions: Wastewater flow rate 100,000 m/d Approach velocity = 0.6 m/s Open area for flow through the screen 1.6 m2 Head loss coefficient for clean screen 0.75 Head loss coefficient for clogged screen 0.60 Incline from vertical = 0° a. Calculate the clean water head loss through the bar screen. b. Calculate the head loss after 40% of the flow area is clogged with solids.

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

A mechanically cleaned bar screen is used in preliminary treatment for
the following conditions:
Wastewater flow rate = 100,000 mld
Approach velocity = 0.6 m/s
Open area for flow through the screen = 1.6 m2
Head loss coefficient for clean screen 0.75
3D
Head loss coefficient for clogged screen 0.60
Incline from vertical = 0°
%3D
a. Calculate the clean water head loss through the bar screen.
b. Calculate the head loss after 40% of the flow area is clogged
with solids.

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