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The sub-indices of several water quality parameters on a raw river water are as follows: COD: 92, BOD: 93, AN: 85, SS: 87, pH: 98, DO: 100 Determine the WQI of the river water.

The sub-indices of several water quality parameters on a raw river water are as follows: COD: 92, BOD: 93, AN: 85, SS: 87, pH: 98, DO: 100 Determine the WQI of the river water.

Structural Analysis
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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WQI = 0.22*SIDO + 0.19*SIBOD + 0.16*SICOD + 0.15*SIAN + 0.16*SISS + 0.12*SIPH %3D UTM Parameter Value Sub Index (SI) Equation COD If X< 20 If X> 20 If X< 5 If X> 5 If X < 0.3 If 0.3 <X<4 If X 24 If X< 100 If 100 <X< 1000 If X2 1000 If X< 5.5 If 5.5 <X<7 If 7 <X<8.75 If X 2 8.75 X- DO (mg/L) x 12.6577 SICOD = 99.1-1.33 X SICOD = 103 e-0.0157X BOD SIBOD = 100.4- 4.32 X SIBOD = 108 e-0.055X-0.1 X AN SIAN = 100.5 105 X SIAN = 94 e-0.573X - 5(X– 2) SIAN = 0 SS SISS =97.5 e-0.00676X + 0.1 X SISS = 71 e-0.0016X – 0.015 X SISS = 0 pH SlpH = 17.2 –17.2 X+ 5.02 X² SipH = -242 + 95.5 X – 6.67 X2 N SlpH = -181 + 82.4 X-6.05 X² SlpH = 536 – 77 X+ 2.76 X² TM %3D %3D DO SIDO = 0 If X 8 If X>8 SIDO = -0.395+0.03 X2-0.000198 X3
Transcribed Image Text:WQI = 0.22*SIDO + 0.19*SIBOD + 0.16*SICOD + 0.15*SIAN + 0.16*SISS + 0.12*SIPH %3D UTM Parameter Value Sub Index (SI) Equation COD If X< 20 If X> 20 If X< 5 If X> 5 If X < 0.3 If 0.3 <X<4 If X 24 If X< 100 If 100 <X< 1000 If X2 1000 If X< 5.5 If 5.5 <X<7 If 7 <X<8.75 If X 2 8.75 X- DO (mg/L) x 12.6577 SICOD = 99.1-1.33 X SICOD = 103 e-0.0157X BOD SIBOD = 100.4- 4.32 X SIBOD = 108 e-0.055X-0.1 X AN SIAN = 100.5 105 X SIAN = 94 e-0.573X - 5(X– 2) SIAN = 0 SS SISS =97.5 e-0.00676X + 0.1 X SISS = 71 e-0.0016X – 0.015 X SISS = 0 pH SlpH = 17.2 –17.2 X+ 5.02 X² SipH = -242 + 95.5 X – 6.67 X2 N SlpH = -181 + 82.4 X-6.05 X² SlpH = 536 – 77 X+ 2.76 X² TM %3D %3D DO SIDO = 0 If X 8 If X>8 SIDO = -0.395+0.03 X2-0.000198 X3
WQI -0.22 SIDO 0.19SIBOD 16SICOD+01SSIAN +016 SISS 0.12Slp The sub-indices of several water quality parameters on a raw river water are as follows: Parameter Value Sub Indes S) Equation SICOD-99.I-133 X SICOD-103e COD: 92, BOD: 93, AN: 85, SS: 87, pH: 98, DO: 100 COD EXS20 IrX>20 SIBOD-1004-432 X SIBOD-108e 01X SIAN-100.S-105 X SIAN- 94 e -Sx-2) BOD AN Determine the WQI of the river water. r03<X<4 rX24 SIAN- SISS 15e 0X SISS-71 et 0015 x SISS-e SS EXS100 Ir 100<X<1000 Irx2 1000 EX<55 IESS SX<7 ar7 sx<75 SipH =172-17.2X+502 X Sip-22+95.5 X-667 X Sipl--181 2.4X-6.05 X Sipl-536-77x+26 X pH X-DO L)x 12.6577 DO SIDO-e SIDO-39s00 X-0.000198 X Q Zoom A B 2 374 31.45 C 93 19 678
Transcribed Image Text:WQI -0.22 SIDO 0.19SIBOD 16SICOD+01SSIAN +016 SISS 0.12Slp The sub-indices of several water quality parameters on a raw river water are as follows: Parameter Value Sub Indes S) Equation SICOD-99.I-133 X SICOD-103e COD: 92, BOD: 93, AN: 85, SS: 87, pH: 98, DO: 100 COD EXS20 IrX>20 SIBOD-1004-432 X SIBOD-108e 01X SIAN-100.S-105 X SIAN- 94 e -Sx-2) BOD AN Determine the WQI of the river water. r03<X<4 rX24 SIAN- SISS 15e 0X SISS-71 et 0015 x SISS-e SS EXS100 Ir 100<X<1000 Irx2 1000 EX<55 IESS SX<7 ar7 sx<75 SipH =172-17.2X+502 X Sip-22+95.5 X-667 X Sipl--181 2.4X-6.05 X Sipl-536-77x+26 X pH X-DO L)x 12.6577 DO SIDO-e SIDO-39s00 X-0.000198 X Q Zoom A B 2 374 31.45 C 93 19 678
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