Determine the greatest dissolved-oxygen deficit and the minimum dissolved-oxygen concentration downstream.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
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8.2. A wastewater discharge to a small stream has the following char-
acteristics:
ITEM
Discharge
9 m/s
T, °C
BOD,, g/m³
DO, g/m³
K 20°C.d1
Stream
Q, m³/s
T, °C
BOD,, g/m²
DO deficit 8/m³
Kr.d-1"
k₂,, d-1
Winter
0.1
21
100
0.0
0.2
3
12
SEASON
0.0
0.0
0.08
0.55
Summer
0.1
21
100
0.0
0.2
1.5
25
0.0
0.0
0.26
0.40
Determine the greatest dissolved-oxygen deficit and the minimum
dissolved-oxygen concentration downstream.
Transcribed Image Text:8.2. A wastewater discharge to a small stream has the following char- acteristics: ITEM Discharge 9 m/s T, °C BOD,, g/m³ DO, g/m³ K 20°C.d1 Stream Q, m³/s T, °C BOD,, g/m² DO deficit 8/m³ Kr.d-1" k₂,, d-1 Winter 0.1 21 100 0.0 0.2 3 12 SEASON 0.0 0.0 0.08 0.55 Summer 0.1 21 100 0.0 0.2 1.5 25 0.0 0.0 0.26 0.40 Determine the greatest dissolved-oxygen deficit and the minimum dissolved-oxygen concentration downstream.
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