Normality = Molarity (exchange in electron) =M(Z)%3DIEanions - Ecations | < 0.1065 + 0.0155 anionsHenry's Law: x, = K#P,p= ionic strength =-ECz?log y = logy, = -÷f( - 0.2(4)]%3D1+y/PV = nRT (R= 0.08206 L-atm/(mol-K))BOD, = (DO,DO,)/PBOD, = [(DO, - DO,) - (B, - B) • fI/P300-V,P = V,/300300BOD,= BOD, • (1 – e-kt)kT, = kr2072) where 0 = 1.057 (T is 20-30) & = 1.136 T<20C%3DLeast Squares Method:na + bžy – Ey' = 0; ały + bEy2 - Eyy' = 0BOD, =-k -bMPNThomas Equation:# of positive tubes-100100mL (ml sample in negative tubes-mL sample in all tubes)+/2Cr =; D, = (e-Kt-e-Kt) + Da(e*rt):K,-Ka%3DDRAFQw+Qr(1– Pa(kr-ka):kalaDmax =L,e-k,c)kr Topics Covered: Water Quality1. Wastewater samples were prepared and incubated at 20°C for 5 days for BOD analysis.Sample dilutions and the corresponding initial and final dissolved oxygenconcentrations are summarized in the following table. Using the correct dilutions,estimate BOD5. Estiamte ultimate BOD if the BOD rate constant is 0.36/d.BottleSampleVolumeInitialFinal DODO119.18.59.06.3159.01.2408.90.2234

BOD rate constant (k) = 0.36/dSample dilutions and corresponding initial and final dissolved oxygen…

1. Wastewater samples were prepared and incubated at 20°C for 5 days for BOD analysis. Sample dilutions and the corresponding initial and final dissolved oxygen concentrations are summarized in the following table. Using the correct dilutions, estimate BODS. Estiamte ultimate BOD if the BOD rate constant is 0.36/d. Final DO Bottle Initial Sample Volume DO 9.1 8.5 9.0 6.3 15 9.0 1.2 40 8.9 0.2 1234

1. Wastewater samples were prepared and incubated at 20°C for 5 days for BOD analysis. Sample dilutions and the corresponding initial and final dissolved oxygen concentrations are summarized in the following table. Using the correct dilutions, estimate BODS. Estiamte ultimate BOD if the BOD rate constant is 0.36/d. Final DO Bottle Initial Sample Volume DO 9.1 8.5 9.0 6.3 15 9.0 1.2 40 8.9 0.2 1234

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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