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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: the aerobic biological treatment is achieved by
اخترأحد الخيارات
a. trickling filter or biofilter and sedimentation
tank
b. activated sludge
c. oxidation ditches
d. rotating biological contactors
Transcribed Image Text:: the aerobic biological treatment is achieved by اخترأحد الخيارات a. trickling filter or biofilter and sedimentation tank b. activated sludge c. oxidation ditches d. rotating biological contactors
The flow rate of activated sludge recycle (Qr) is :
Select one:
a. 0.2-0.5 Qd
b. depend upon the condition
c. 0.1-0.3 Qd
d. 0.4-0.7 Qd
Transcribed Image Text:The flow rate of activated sludge recycle (Qr) is : Select one: a. 0.2-0.5 Qd b. depend upon the condition c. 0.1-0.3 Qd d. 0.4-0.7 Qd
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