8.2. A wastewater discharge to a small stream has the following char-acteristics:ITEMDischarge9 m/sT, °CBOD,, g/m³DO, g/m³K 20°C.d1StreamQ, m³/sT, °CBOD,, g/m²DO deficit 8/m³Kr.d-1"k₂,, d-1Winter0.1211000.00.2312SEASON0.00.00.080.55Summer0.1211000.00.21.5250.00.00.260.40Determine the greatest dissolved-oxygen deficit and the minimumdissolved-oxygen concentration downstream.

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Engineering

Civil Engineering

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

Problem 1P

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Question

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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