WAS Pumping Rate using Wasting Rate from Return Line when Concentration of Solid in Effluent is Low Solution

STEP 0: Pre-Calculation Summary
Formula Used
WAS Pumping Rate from Return Line = Reactor Volume*MLSS/(Mean Cell Residence Time*Sludge Concentration in Return Line)
Qw' = V*X/(θc*Xr)
This formula uses 5 Variables
Variables Used
WAS Pumping Rate from Return Line - (Measured in Cubic Meter per Second) - WAS Pumping Rate from Return Line is the flow rate of waste sludge from the return line.
Reactor Volume - (Measured in Cubic Meter) - The Reactor Volume gives us the capacity of the reactor.
MLSS - (Measured in Kilogram per Cubic Meter) - MLSS is the sum of volatile suspended solids (organics) and fixed suspended solids (inorganics).
Mean Cell Residence Time - (Measured in Second) - Mean Cell Residence Time is the average time that the sludge remains in the reactor.
Sludge Concentration in Return Line - (Measured in Kilogram per Cubic Meter) - Sludge Concentration in Return Line is the total BOD that is present in the return line.
STEP 1: Convert Input(s) to Base Unit
Reactor Volume: 1000 Cubic Meter --> 1000 Cubic Meter No Conversion Required
MLSS: 1200 Milligram per Liter --> 1.2 Kilogram per Cubic Meter (Check conversion ​here)
Mean Cell Residence Time: 7 Day --> 604800 Second (Check conversion ​here)
Sludge Concentration in Return Line: 200 Milligram per Liter --> 0.2 Kilogram per Cubic Meter (Check conversion ​here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Qw' = V*X/(θc*Xr) --> 1000*1.2/(604800*0.2)
Evaluating ... ...
Qw' = 0.00992063492063492
STEP 3: Convert Result to Output's Unit
0.00992063492063492 Cubic Meter per Second -->857.142857142857 Cubic Meter per Day (Check conversion ​here)
FINAL ANSWER
857.142857142857 857.1429 Cubic Meter per Day <-- WAS Pumping Rate from Return Line
(Calculation completed in 00.004 seconds)

Credits

Creator Image
Created by Ishita Goyal
Meerut Institute of Engineering and Technology (MIET), Meerut
Ishita Goyal has created this Calculator and 500+ more calculators!
Verifier Image
Verified by Chandana P Dev
NSS College of Engineering (NSSCE), Palakkad
Chandana P Dev has verified this Calculator and 1700+ more calculators!

4 WAS Pumping Rate Calculators

WAS Pumping Rate from Return Line given Wasting Rate from Return Line
​ Go WAS Pumping Rate from Return Line = (Reactor Volume*MLSS/(Mean Cell Residence Time*Sludge Concentration in Return Line))-(Effluent Flow Rate*Solid Concentration in Effluent/Sludge Concentration in Return Line)
WAS Pumping Rate from Return Line given RAS Pumping Rate from Aeration Tank
​ Go WAS Pumping Rate from Return Line = ((MLSS/Sludge Concentration in Return Line)*(Average daily influent flow rate+Return Activated Sludge))-Return Activated Sludge
WAS Pumping Rate using Wasting Rate from Return Line when Concentration of Solid in Effluent is Low
​ Go WAS Pumping Rate from Return Line = Reactor Volume*MLSS/(Mean Cell Residence Time*Sludge Concentration in Return Line)
WAS Pumping Rate from Aeration Tank
​ Go WAS Pumping Rate from Reactor = Reactor Volume/Mean Cell Residence Time

WAS Pumping Rate using Wasting Rate from Return Line when Concentration of Solid in Effluent is Low Formula

WAS Pumping Rate from Return Line = Reactor Volume*MLSS/(Mean Cell Residence Time*Sludge Concentration in Return Line)
Qw' = V*X/(θc*Xr)

What is wasting rate?

The Wasting rate from return line is the time required to waste sludge from the return sludge line because return activated sludge is more concentrated and requires smaller waste sludge pumps.

How to Calculate WAS Pumping Rate using Wasting Rate from Return Line when Concentration of Solid in Effluent is Low?

WAS Pumping Rate using Wasting Rate from Return Line when Concentration of Solid in Effluent is Low calculator uses WAS Pumping Rate from Return Line = Reactor Volume*MLSS/(Mean Cell Residence Time*Sludge Concentration in Return Line) to calculate the WAS Pumping Rate from Return Line, The WAS pumping rate using wasting rate from return line when concentration of solid in effluent is low is calculated when the amount of solid concentration in effluent is less. WAS Pumping Rate from Return Line is denoted by Qw' symbol.

How to calculate WAS Pumping Rate using Wasting Rate from Return Line when Concentration of Solid in Effluent is Low using this online calculator? To use this online calculator for WAS Pumping Rate using Wasting Rate from Return Line when Concentration of Solid in Effluent is Low, enter Reactor Volume (V), MLSS (X), Mean Cell Residence Time c) & Sludge Concentration in Return Line (Xr) and hit the calculate button. Here is how the WAS Pumping Rate using Wasting Rate from Return Line when Concentration of Solid in Effluent is Low calculation can be explained with given input values -> 5.2E+7 = 1000*1.2/(604800*0.2).

FAQ

What is WAS Pumping Rate using Wasting Rate from Return Line when Concentration of Solid in Effluent is Low?
The WAS pumping rate using wasting rate from return line when concentration of solid in effluent is low is calculated when the amount of solid concentration in effluent is less and is represented as Qw' = V*X/(θc*Xr) or WAS Pumping Rate from Return Line = Reactor Volume*MLSS/(Mean Cell Residence Time*Sludge Concentration in Return Line). The Reactor Volume gives us the capacity of the reactor, MLSS is the sum of volatile suspended solids (organics) and fixed suspended solids (inorganics), Mean Cell Residence Time is the average time that the sludge remains in the reactor & Sludge Concentration in Return Line is the total BOD that is present in the return line.
How to calculate WAS Pumping Rate using Wasting Rate from Return Line when Concentration of Solid in Effluent is Low?
The WAS pumping rate using wasting rate from return line when concentration of solid in effluent is low is calculated when the amount of solid concentration in effluent is less is calculated using WAS Pumping Rate from Return Line = Reactor Volume*MLSS/(Mean Cell Residence Time*Sludge Concentration in Return Line). To calculate WAS Pumping Rate using Wasting Rate from Return Line when Concentration of Solid in Effluent is Low, you need Reactor Volume (V), MLSS (X), Mean Cell Residence Time c) & Sludge Concentration in Return Line (Xr). With our tool, you need to enter the respective value for Reactor Volume, MLSS, Mean Cell Residence Time & Sludge Concentration in Return Line and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate WAS Pumping Rate from Return Line?
In this formula, WAS Pumping Rate from Return Line uses Reactor Volume, MLSS, Mean Cell Residence Time & Sludge Concentration in Return Line. We can use 2 other way(s) to calculate the same, which is/are as follows -
  • WAS Pumping Rate from Return Line = (Reactor Volume*MLSS/(Mean Cell Residence Time*Sludge Concentration in Return Line))-(Effluent Flow Rate*Solid Concentration in Effluent/Sludge Concentration in Return Line)
  • WAS Pumping Rate from Return Line = ((MLSS/Sludge Concentration in Return Line)*(Average daily influent flow rate+Return Activated Sludge))-Return Activated Sludge
Let Others Know
Facebook
Twitter
Reddit
LinkedIn
Email
WhatsApp
Copied!