Endogenous Decay Coefficient given Observed Cell Yield Solution

STEP 0: Pre-Calculation Summary
Formula Used
Endogenous decay coefficient = (Observed Cell Yield-Maximum Yield Coefficient)/Mean Cell Residence Time
kd = (Yobs-Y)/θc
This formula uses 4 Variables
Variables Used
Endogenous decay coefficient - (Measured in 1 Per Second) - Endogenous decay coefficient is a coefficient representing the decrease of cell mass in the MLVSS.
Observed Cell Yield - Observed Cell Yield is the observed mg of cells produced per mg organic matter removed.
Maximum Yield Coefficient - Maximum Yield Coefficient Y represents the maximum mg of cells produced per mg organic matter removed.
Mean Cell Residence Time - (Measured in Second) - Mean Cell Residence Time is the average time that the sludge remains in the reactor.
STEP 1: Convert Input(s) to Base Unit
Observed Cell Yield: 0.8 --> No Conversion Required
Maximum Yield Coefficient: 0.5 --> No Conversion Required
Mean Cell Residence Time: 7 Day --> 604800 Second (Check conversion here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
kd = (Yobs-Y)/θc --> (0.8-0.5)/604800
Evaluating ... ...
kd = 4.96031746031746E-07
STEP 3: Convert Result to Output's Unit
4.96031746031746E-07 1 Per Second -->0.0428571428571429 1 Per Day (Check conversion here)
FINAL ANSWER
0.0428571428571429 0.042857 1 Per Day <-- Endogenous decay coefficient
(Calculation completed in 00.004 seconds)

Credits

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Meerut Institute of Engineering and Technology (MIET), Meerut
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2 Endogenous Decay Coefficient Calculators

Endogenous Decay Constant given Volume of Reactor
Go Endogenous decay coefficient = ((Average daily influent flow rate*Maximum Yield Coefficient*(Influent Substrate Concentration-Effluent substrate concentration))/(Reactor Volume*MLVSS))-(1/Mean Cell Residence Time)
Endogenous Decay Coefficient given Observed Cell Yield
Go Endogenous decay coefficient = (Observed Cell Yield-Maximum Yield Coefficient)/Mean Cell Residence Time

Endogenous Decay Coefficient given Observed Cell Yield Formula

Endogenous decay coefficient = (Observed Cell Yield-Maximum Yield Coefficient)/Mean Cell Residence Time
kd = (Yobs-Y)/θc

What is observed cell yield?

Observed cell yield represents the observed mg of cells produced per mg organic matter removed. The observed cell yield is always less than the maximum cell yield, (Y).

How to Calculate Endogenous Decay Coefficient given Observed Cell Yield?

Endogenous Decay Coefficient given Observed Cell Yield calculator uses Endogenous decay coefficient = (Observed Cell Yield-Maximum Yield Coefficient)/Mean Cell Residence Time to calculate the Endogenous decay coefficient, The Endogenous Decay Coefficient given Observed Cell Yield is a coefficient representing the decrease of cell mass in the MLVSS. Endogenous decay coefficient is denoted by kd symbol.

How to calculate Endogenous Decay Coefficient given Observed Cell Yield using this online calculator? To use this online calculator for Endogenous Decay Coefficient given Observed Cell Yield, enter Observed Cell Yield (Yobs), Maximum Yield Coefficient (Y) & Mean Cell Residence Time c) and hit the calculate button. Here is how the Endogenous Decay Coefficient given Observed Cell Yield calculation can be explained with given input values -> 2592 = (0.8-0.5)/604800.

FAQ

What is Endogenous Decay Coefficient given Observed Cell Yield?
The Endogenous Decay Coefficient given Observed Cell Yield is a coefficient representing the decrease of cell mass in the MLVSS and is represented as kd = (Yobs-Y)/θc or Endogenous decay coefficient = (Observed Cell Yield-Maximum Yield Coefficient)/Mean Cell Residence Time. Observed Cell Yield is the observed mg of cells produced per mg organic matter removed, Maximum Yield Coefficient Y represents the maximum mg of cells produced per mg organic matter removed & Mean Cell Residence Time is the average time that the sludge remains in the reactor.
How to calculate Endogenous Decay Coefficient given Observed Cell Yield?
The Endogenous Decay Coefficient given Observed Cell Yield is a coefficient representing the decrease of cell mass in the MLVSS is calculated using Endogenous decay coefficient = (Observed Cell Yield-Maximum Yield Coefficient)/Mean Cell Residence Time. To calculate Endogenous Decay Coefficient given Observed Cell Yield, you need Observed Cell Yield (Yobs), Maximum Yield Coefficient (Y) & Mean Cell Residence Time c). With our tool, you need to enter the respective value for Observed Cell Yield, Maximum Yield Coefficient & Mean Cell Residence Time 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 Endogenous decay coefficient?
In this formula, Endogenous decay coefficient uses Observed Cell Yield, Maximum Yield Coefficient & Mean Cell Residence Time. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • Endogenous decay coefficient = ((Average daily influent flow rate*Maximum Yield Coefficient*(Influent Substrate Concentration-Effluent substrate concentration))/(Reactor Volume*MLVSS))-(1/Mean Cell Residence Time)
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