Concentration of Solids in Returned Sludge given MLSS Calculator

✖Mixed Liquor Suspended Solids is the concentration of suspended solids in the mixed liquor of an aeration tank during the activated sludge process.ⓘ Mixed Liquor Suspended Solids [X^']			+10% -10%
✖Volume of Tank is defined as the capacity of flocculation and mixing tank.ⓘ Volume of Tank [V]			+10% -10%
✖Volume of Wasted Sludge per day is the amount of sludge that is removed from a wastewater treatment process within a 24-hour period.ⓘ Volume of Wasted Sludge per day [Q_w]			+10% -10%
✖Sludge Age is the average time for which the particle of suspended solids remains in aeration.ⓘ Sludge Age [θ_c]			+10% -10%

✖Concentration of Solids given MLSS is the density of solid particles present in the sludge that is returned from the secondary settling tanks to the aeration tank, considering MLSS.ⓘ Concentration of Solids in Returned Sludge given MLSS [X_Em]

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Concentration of Solids in Returned Sludge given MLSS Solution

STEP 0: Pre-Calculation Summary

Formula Used

Concentration of Solids given MLSS = (Mixed Liquor Suspended Solids*Volume of Tank)/(Volume of Wasted Sludge per day*Sludge Age)
X_Em = (X^'*V)/(Q_w*θ_c)
This formula uses 5 Variables

Variables Used

Concentration of Solids given MLSS - (Measured in Kilogram per Cubic Meter) - Concentration of Solids given MLSS is the density of solid particles present in the sludge that is returned from the secondary settling tanks to the aeration tank, considering MLSS.
Mixed Liquor Suspended Solids - (Measured in Kilogram per Cubic Meter) - Mixed Liquor Suspended Solids is the concentration of suspended solids in the mixed liquor of an aeration tank during the activated sludge process.
Volume of Tank - (Measured in Cubic Meter) - Volume of Tank is defined as the capacity of flocculation and mixing tank.
Volume of Wasted Sludge per day - (Measured in Cubic Meter per Second) - Volume of Wasted Sludge per day is the amount of sludge that is removed from a wastewater treatment process within a 24-hour period.
Sludge Age - (Measured in Second) - Sludge Age is the average time for which the particle of suspended solids remains in aeration.

STEP 1: Convert Input(s) to Base Unit

Mixed Liquor Suspended Solids: 1200 Milligram per Liter --> 1.2 Kilogram per Cubic Meter (Check conversion here)
Volume of Tank: 9 Cubic Meter --> 9 Cubic Meter No Conversion Required
Volume of Wasted Sludge per day: 9.5 Cubic Meter per Second --> 9.5 Cubic Meter per Second No Conversion Required
Sludge Age: 5 Day --> 432000 Second (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

X_Em = (X^'*V)/(Q_w*θ_c) --> (1.2*9)/(9.5*432000)

Evaluating ... ...

X_Em = 2.63157894736842E-06

STEP 3: Convert Result to Output's Unit

2.63157894736842E-06 Kilogram per Cubic Meter -->0.00263157894736842 Milligram per Liter (Check conversion here)

FINAL ANSWER

0.00263157894736842 ≈ 0.002632 Milligram per Liter <-- Concentration of Solids given MLSS

(Calculation completed in 00.004 seconds)

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Created by Suraj Kumar

Birsa Institute of Technology (BIT), Sindri

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Meerut Institute of Engineering and Technology (MIET), Meerut

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< Concentration of Solids Calculators

Concentration of Solids in Effluent given Sludge Age

LaTeX Go Concentration of Solids Effluent given Sludge Age = (((Volume of Tank*Mixed Liquor Suspended Solids)/Sludge Age)-(Volume of Wasted Sludge per day*Concentration of Solids in Returned Sludge))/(Sewage Discharge-Volume of Wasted Sludge per day)

Concentration of Solids in Returned Sludge given Sludge Age

LaTeX Go Concentration of Solids given Sludge Age = (((Volume of Tank*Mixed Liquor Suspended Solids)/Sludge Age)-(Sewage Discharge-Volume of Wasted Sludge per day)*Concentration of Solids in Effluent)/Volume of Wasted Sludge per day

Concentration of Solids in Effluent given Mass of Solids Removed

LaTeX Go Concentration of Solids in Effluent = Mass of Solids/(Sewage Discharge-Volume of Wasted Sludge per day)

Concentration of Solids in Returned Sludge

LaTeX Go Concentration of Solids in Returned Sludge = Mass of Solids/Volume of Wasted Sludge per day

< Important Formulas of Sludge Age Calculators

Endogenous Respiration Rate Constant given Mass of Wasted Activated Sludge

LaTeX Go Endogenous Respiration Rate Constant = ((Maximum Yield Coefficient*Sewage Discharge*(Influent BOD-Effluent BOD))-Mass of Wasted Activated Sludge)/(Mixed Liquor Suspended Solids*Volume of Tank)

Mass of Wasted Activated Sludge

LaTeX Go Mass of Wasted Activated Sludge = (Maximum Yield Coefficient*Sewage Discharge*(Influent BOD-Effluent BOD))-(Endogenous Respiration Rate Constant*Volume of Tank*Mixed Liquor Suspended Solids)

Concentration of Solids in Returned Sludge given MLSS

LaTeX Go Concentration of Solids given MLSS = (Mixed Liquor Suspended Solids*Volume of Tank)/(Volume of Wasted Sludge per day*Sludge Age)

Endogenous Respiration Rate Constant given Maximum Yield Coefficient

LaTeX Go Endogenous Respiration Constant = (Maximum Yield Coefficient*Specific Substrate Utilization Rate)-(1/Sludge Age)

Concentration of Solids in Returned Sludge given MLSS Formula

LaTeX Go

Concentration of Solids given MLSS = (Mixed Liquor Suspended Solids*Volume of Tank)/(Volume of Wasted Sludge per day*Sludge Age)
X_Em = (X^'*V)/(Q_w*θ_c)

What is Sludge?

Sludge is a semi-solid slurry that can be produced from a range of industrial processes, from water treatment, wastewater treatment or on-site sanitation systems.

How to Calculate Concentration of Solids in Returned Sludge given MLSS?

Concentration of Solids in Returned Sludge given MLSS calculator uses Concentration of Solids given MLSS = (Mixed Liquor Suspended Solids*Volume of Tank)/(Volume of Wasted Sludge per day*Sludge Age) to calculate the Concentration of Solids given MLSS, The Concentration of Solids in Returned Sludge given MLSS formula is defined as the proportion or density of solid particles present in the sludge that is returned from the secondary settling tanks to the aeration tank in wastewater treatment processes, particularly in activated sludge systems, considering MLSS. Concentration of Solids given MLSS is denoted by X_Em symbol.

How to calculate Concentration of Solids in Returned Sludge given MLSS using this online calculator? To use this online calculator for Concentration of Solids in Returned Sludge given MLSS, enter Mixed Liquor Suspended Solids (X^'), Volume of Tank (V), Volume of Wasted Sludge per day (Q_w) & Sludge Age (θ_c) and hit the calculate button. Here is how the Concentration of Solids in Returned Sludge given MLSS calculation can be explained with given input values -> 2.631579 = (1.2*9)/(9.5*432000).

FAQ

What is Concentration of Solids in Returned Sludge given MLSS?

The Concentration of Solids in Returned Sludge given MLSS formula is defined as the proportion or density of solid particles present in the sludge that is returned from the secondary settling tanks to the aeration tank in wastewater treatment processes, particularly in activated sludge systems, considering MLSS and is represented as X_Em = (X^'*V)/(Q_w*θ_c) or Concentration of Solids given MLSS = (Mixed Liquor Suspended Solids*Volume of Tank)/(Volume of Wasted Sludge per day*Sludge Age). Mixed Liquor Suspended Solids is the concentration of suspended solids in the mixed liquor of an aeration tank during the activated sludge process, Volume of Tank is defined as the capacity of flocculation and mixing tank, Volume of Wasted Sludge per day is the amount of sludge that is removed from a wastewater treatment process within a 24-hour period & Sludge Age is the average time for which the particle of suspended solids remains in aeration.

How to calculate Concentration of Solids in Returned Sludge given MLSS?

The Concentration of Solids in Returned Sludge given MLSS formula is defined as the proportion or density of solid particles present in the sludge that is returned from the secondary settling tanks to the aeration tank in wastewater treatment processes, particularly in activated sludge systems, considering MLSS is calculated using Concentration of Solids given MLSS = (Mixed Liquor Suspended Solids*Volume of Tank)/(Volume of Wasted Sludge per day*Sludge Age). To calculate Concentration of Solids in Returned Sludge given MLSS, you need Mixed Liquor Suspended Solids (X^'), Volume of Tank (V), Volume of Wasted Sludge per day (Q_w) & Sludge Age (θ_c). With our tool, you need to enter the respective value for Mixed Liquor Suspended Solids, Volume of Tank, Volume of Wasted Sludge per day & Sludge Age and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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