(d)Biomass and substrate mass balance equations can be merged givingY= ( ) - kdX(Sort)QwXRVXSRT(i)Prove that X =HRT(ii)If you are an engineerand obtained the following data: -SRTTMHRTSoSYkaY(So-S)Wonka (SRT)).= 20 days== 20 hours= 350 mg/L= 100= 0.15= 0.22 per day=Note that HRT = t and SRT = tc.in a wastewater consultancy company,Calculate the increment of MLSS (%) required in the aerobic tank if thedischarge BOD5 in the effluent needs to achieve 10 mg/L.

Given:- SRT=20days HRT=20H So=350mg/l S=100mg/l Y=0.15 Kd=0.22per day Calculate :- 1) prove Given…

(d) Biomass and substrate mass balance equations can be merged giving QwXR = () Y/Qo` X VX (SS) - ka (i) Prove that X= Note that HRT = t and SRT = tc. (ii) If you are an engineer working in a wastewater consultancy company, and obtained the following data: - COMM SRTTM 20 days HRT = 20 hours So S Y ka SRT Y(So-S) HRT \1+ka(SRT)) 350 mg/L 100 = 0.15 / = 0.22 per day Calculate the increment of MLSS (%) required in the aerobic tank if the discharge BOD5 in the effluent needs to achieve 10 mg/L.

(d) Biomass and substrate mass balance equations can be merged giving QwXR = () Y/Qo` X VX (SS) - ka (i) Prove that X= Note that HRT = t and SRT = tc. (ii) If you are an engineer working in a wastewater consultancy company, and obtained the following data: - COMM SRTTM 20 days HRT = 20 hours So S Y ka SRT Y(So-S) HRT \1+ka(SRT)) 350 mg/L 100 = 0.15 / = 0.22 per day Calculate the increment of MLSS (%) required in the aerobic tank if the discharge BOD5 in the effluent needs to achieve 10 mg/L.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Clearly explain with one example where each (total suction, matric suction and osmotic suction) of this suction value is used in geotechnical or geo-environmental engineering practice applications.
All information given... Don't say incomplete question
What is the molar concentration of 196 mg/L sulfate acid (H2SO4)? Use mol/L or mmol/L as the unit in your final result.
(a) Sketch a typical Streeter-Phelps oxygen-sag curve and state its limitations. dD (b) The rate of change of the dissolved oxygen deficit, ", is the net effect of the rate of dt re-aeration, given as – k D, and the rate of oxygen utilization, given as k,Le , where ko, ka and Lo are the re-aeration rate constant, the decay constant, and the ultimate BOD, respectively. Write the expression for the rate of change of the dissolved oxygen deficit. Then argue why the maximum deficit, De, occurring at the critical time, to, is given by: ka Le D. k.
Compute the sonic velocity of
Q1.Clearly indicate if each of the following is True or False 1) The amount of bypassed water in split treatment of hardness depends on material balance on Mg². 2) Most water treatment plants in Iraq are using polymers as a coagulant. 3) In drinking water, most of alkalinity comes from SO4². 4) Circle or ring system is the most common method used now to design water distribution systems. 5) Fecal Coliforms and E-Coli are generally pathogenic and we need to test them to avoid their diseases. 6) In flocculation process, we need rapid mixing to enhance formation of flocs for better settlement. 7) In filtration, the only mechanism involved is the straining. 8) It is better to travel downhill, avoid rush hours, and avoid left turn when designing a route for packers. 9) Ozone in Stratosphere layer helps prevent UV light from reaching earth and causing skin problems. 10) Transfer station is used to transfer solid waste to final destination in more efficient way.
A river water was taken for analysis. The results for anions and cations analysis are shown below, 165 mg/l 70 mg/l HCO, 2+ Ca Са 173 mg/l 30 mg/1 SO42 2+ Mg 202 mg/l 125 mg/l ci Na Determine and justify either the analysis is acceptable or not. II II II
For the following wastewater and biomass characteristics: Q0 = 50 m3/d S0 = 60 mg NH4+-N/l Xi0 = 20 mg/l k= 2.5 mg NH4+-N/mg VSS-d K = 1 mg/l Y = 0.34 g VSS/g NH4+-N b = 0/day Calculate the volume of the CSTR required for 50 and 98% removal of ammonia by oxidation to nitrate.
2. A wastewater treatment plant disposes of its effluents into a stream at a point A. Characteristics of the stream at a location fairly upstream of A and of the effluent are as below: Item Units Effluent Stream m3 /s mg l1 Flow 0.20 0.50 Dissolved 0xygen 2.00 8.00 Temperature °C 26 22 BOD, at 20°C mgll 40 3. Assume that the deoxygenation constant K, at 20°C (base e) = 0.20 d-l and the re-aeration constant K, at 20°C (base e) Equilibrium concentration of dissolved oxygen C, for the fresh water is as follows: 0.40 d-1 for the mixture. %3D Temperature °C 18 20 22 23 24 25 26 C, (mg/1) 9.54 8.99 8.83 8.53 8.38 8.22 9.17 The velocity of the stream downstream of the point A is 0.2 m/s. Determine the critical oxygen deficit and its location. [Use temperature coefficients of 1.04 for K, and 1.02 for K,)
Discuss about Overconsolidation Ratio
Sieve Apperture (um) Weight Retalned, (g) Weight of ore = 500 g 200 150 -125 100 75 45 30 100 50 What is the percentage composition material between 200 and 180 um? 68 80 Were there some material losses? What 20 60 100 20 accounts for such an observation? Pan
V3. An aerated BOD bottle is filled with substrate and microbial cells. You have determined the following parameters for this mixture: - Substrate yield, Y=0.60mg/L biomass /mg/L substrate - Specific growth rate, μ=2.0 day −1 - Rate of substrate utilization =15,000mg/L−hr - Substrate concentration =275mg/L - Half-saturation constant =25mg/L Determine: a. The microbial growth rate/biomass utilization rate. 9000mg/L−hr b. The maximum specific growth rate. 2.18 / day c. The biomass concentration. 4500mg/L