Design an aeration tank in a sewage treatment plant with followinginformation and report the required values.Influent flow = 10,000 m3/day,BOD,= 150 mg/Effluent BODS20 mg/l,MLVSS = 3000 mg/I.%3DKinetic coefficients can be found in the literature.1) Kinetic coefficients and their sources.2) SRT and HRT3) Volume and size of aeration tank

The question is based on the aeration tank. The value of influent flow, BOD, and mixed liquor…

Answered: Design an aeration tank in a sewage…

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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Problem 2 If the ultimate Biochemical oxygen demand (BOD) for a wastewater sample is 200 mg/L and the reaction rate is 0.5 dr¹. 1. Fill the below table showing the values of the oxygen equivalent of the organics remaining (L+) and BOD: at the provided times. 2. Plot a curve showing the variation of (L) and (BOD) with time. 3. What the estimated time to approximately achieve a zero (very small) value of BOD? Time (days) 0 2 Lt (mg/L) BOD: (mg/L) 4 6 8 10
Solve the points in the hand
You have been treating a wastewater with bacteria that have the following kinetic coefficients: k= 16 mg BODL/mg VSS-day Ks = 10 mg BODL/1 b =0.2/day Y = 0.35 mg VSS/mg BODL fa=0.8 A genetic engineer comes to you and claims he can "fix" your bacteria so they are more efficient. The fixed bacteria will have b=0.05/day and fa= 0.95, while all other coefficients are the same. Using a chemostat reactor, you were successfully using a safety factor of 30, and you plant to continue doing so. How would the genetic engineers plan affect your sludge production and oxygen requirements? Assume Xº=0, Sº=200 mg BODL/1). In what ways are the new bacteria more efficient?
Hi Please try to solve Last time you solved this problem but result is incorrect.
If the filtration equation for a suspension of solids at a constant pressure of 38.7 psia is: t/V=(6.1*10^-5)*V+.01, where t is in seconds and V is in liters for P in psia. If the filtration is run at a constant rate of 10 L/s, how many minutes will it take to reach 50 psia?
C. What is the concentration UI SUINUS 5. Determine the size (diameter and depth) of the secondary clarifier (s) at a municipal activated sludge treatment facility: The wastewater flow is 25,000 m³/d, the recycle ratio (recycle sludge flow/wastewater flow) is 0.25. The suspended solids concentration is assumed to be 2500 mg/L in the activated sludge tank. The over flow rate is 50 m3/d- m2 and solids loading is 125 kg/d-m2. Estimate detention time if the depth is 4.5 m. What would be the weir loading? Department of Civil & Environmental Engineering P.O. Box 519 Mail Stop 2510, Prairie View, Texas 77446 w.pvamu.edu Phone (936) 261-1660/1665(dept) Fax (936) 261 1662 Ensuring o Using Zoom o
An anaerobic digester (AD) is designed with the following data. Organic loading rate 1.0 kg VSS/m³.day VSS load 120 kg/day (i). (ii). Estimate the volume of the AD. If the VSS is 12 kg/m³, estimate the retention time.
Enter T next to the following true statements and F next to the false statements. Settling of suspended solids in secondary clarifiers is typical of Type II sedimentation. Thickening prior to digestion is common in many wastewater treatment plants because it reduces the size needed for the digester. Based on a temperature of 30°C, a design mean cell residenee time of about 20 days would be reasonable for a completely-mixed anaerobic digester without recycle. A volatile suspended solid is defined as an organic solid that can be oxidized to CO2 (g) at 250°C. The theoretical yield coefficient can be estimated from the observed yield coefficient if the specific growth rate constant is known. Air flotation would likely be more efficient for thickening waste activated sludge than primary sludge, while the opposite would be true for gravity thickening. The net mass of cells produced in the activated sludge process equals the total cell mass synthesized minus the cell mass wasted as waste…
A company is trying to build a new plant in a location near to a stream. You been asked to find out the impact of the discharged wastewater from the proposed plant on that stream that has characteristics shown in the Table below. The expected plant effluent data is shown in the same Table. Considering K₁=0.23 d¹ and K₂= 0.4 d, what is the DO in the critical point Variable Flow rate (m³/s) Ultimate BOD (mg/L) Stream 0.50 Plant 0.15 19 30 7.84 3.00 (20 20 b) 3.62 mg/L c) 4.86 mg/L d) 5.61 mg/L Dissolved oxygen (mg/L) Temperature (°C) a) 2.53 mg/L
Can you please solve step by step I can't seem to understand it.
The following data on the substrate removal rate and the substrate concentration is available for wastewater treatment (S) mol Rate, r (mol/min) 0.04 0.57 0.06 1.05 0.8 2.32 0.10 3.00 0.12 4.68 0.14 5.42 2.0 5.78 Estimate the value of substrate removal constant Km and the value of Vmax
This is for a water and wastewater review. It's not for a grade I just need to understand the problem, please include equations and choose one of the answer choices.

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