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Biological Oxygen Demand Influent Formula

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Biological Oxygen Demand is applied to determine the aerobic destructibility of organic substances. Check FAQs

BOD i = \frac{FM \cdot V \cdot X}{Q}

BOD_i - Biological Oxygen Demand?FM - Food to Microorganism Ratio?V - Volume of Tank?X - MLSS?Q - Sewage Flow?

Biological Oxygen Demand Influent Example

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Here is how the Biological Oxygen Demand Influent equation looks like with Values.

Here is how the Biological Oxygen Demand Influent equation looks like with Units.

Here is how the Biological Oxygen Demand Influent equation looks like.

0.0009 = \frac{0.001 \cdot 1.5 \cdot 2}{3.33}

0.0009mg/L = \frac{0.001 \cdot 1.5m³ \cdot 2mg/L}{3.33m³}

0.0009 = \frac{0.001 \cdot 1.5 \cdot 2}{3.33}

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Biological Oxygen Demand Influent Solution

Follow our step by step solution on how to calculate Biological Oxygen Demand Influent?

FIRST Step Consider the formula

BOD i = \frac{FM \cdot V \cdot X}{Q}

Next Step Substitute values of Variables

∴

BOD i = \frac{0.001 \cdot 1.5m³ \cdot 2mg/L}{3.33m³}

Next Step Convert Units

∴

BOD i = \frac{0.001 \cdot 1.5m³ \cdot 0.002kg/m³}{3.33m³}

Next Step Prepare to Evaluate

∴

BOD i = \frac{0.001 \cdot 1.5 \cdot 0.002}{3.33}

Next Step Evaluate

∴

BOD i = 9.00900900900901E-07kg/m³

Next Step Convert to Output's Unit

∴

BOD i = 0.000900900900900901mg/L

LAST Step Rounding Answer

∴

BOD i = 0.0009mg/L

Biological Oxygen Demand Influent Formula Elements

Variables

Biological Oxygen Demand

Biological Oxygen Demand is applied to determine the aerobic destructibility of organic substances.

Symbol: BOD_i

Measurement: DensityUnit: mg/L

Note: Value should be greater than 0.

Formulas to find Biological Oxygen Demand

Food to Microorganism Ratio

Food to Microorganism Ratio is actually a measurement of the amount of incoming food divided by the Lbs of Microorganisms in your system.

Symbol: FM

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Food to Microorganism Ratio

Volume of Tank

Volume of Tank is defined as the capacity of flocculation and mixing tank.

Symbol: V

Measurement: VolumeUnit: m³

Note: Value should be greater than 0.

Formulas to find Volume of Tank

MLSS

MLSS is the concentration of suspended solids in the mixed liquor within an aeration tank during the activated sludge process.

Symbol: X

Measurement: DensityUnit: mg/L

Note: Value should be greater than 0.

Formulas to find MLSS

Sewage Flow

Sewage Flow into the aeration tank is the sewage flow into the aeration tank when we have prior information of other parameters used.

Symbol: Q

Measurement: VolumeUnit: m³

Note: Value should be greater than 0.

Formulas to find Sewage Flow

Other formulas in Food is to Microorganism Ratio or F is to M Ratio category

Go Food to Microorganism Ratio

FM = \frac{BOD}{M t}

Go Daily BOD Load given Food to Microorganism Ratio

BOD = FM \cdot M t

Go Total Microbial Mass given Food to Microorganism Ratio

M t = \frac{BOD}{FM}

Go BOD Load applied to Aeration System

BOD a = Q \cdot Q i

How to Evaluate Biological Oxygen Demand Influent?

Biological Oxygen Demand Influent evaluator uses Biological Oxygen Demand = (Food to Microorganism Ratio*Volume of Tank*MLSS)/Sewage Flow to evaluate the Biological Oxygen Demand, The Biological Oxygen Demand Influent formula is defined as the amount of dissolved oxygen needed by aerobic biological organisms in a body of water to break down organic material present in a given water sample at a certain temperature over a specific time period. Biological Oxygen Demand is denoted by BOD_i symbol.

How to evaluate Biological Oxygen Demand Influent using this online evaluator? To use this online evaluator for Biological Oxygen Demand Influent, enter Food to Microorganism Ratio (FM), Volume of Tank (V), MLSS (X) & Sewage Flow (Q) and hit the calculate button.

FAQs on Biological Oxygen Demand Influent

What is the formula to find Biological Oxygen Demand Influent?

The formula of Biological Oxygen Demand Influent is expressed as Biological Oxygen Demand = (Food to Microorganism Ratio*Volume of Tank*MLSS)/Sewage Flow. Here is an example- 5.405405 = (0.001*1.5*0.002)/3.33.

How to calculate Biological Oxygen Demand Influent?

With Food to Microorganism Ratio (FM), Volume of Tank (V), MLSS (X) & Sewage Flow (Q) we can find Biological Oxygen Demand Influent using the formula - Biological Oxygen Demand = (Food to Microorganism Ratio*Volume of Tank*MLSS)/Sewage Flow.

Can the Biological Oxygen Demand Influent be negative?

No, the Biological Oxygen Demand Influent, measured in Density cannot be negative.

Which unit is used to measure Biological Oxygen Demand Influent?

Biological Oxygen Demand Influent is usually measured using the Milligram per Liter[mg/L] for Density. Kilogram per Cubic Meter[mg/L], Kilogram per Cubic Centimeter[mg/L], Gram per Cubic Meter[mg/L] are the few other units in which Biological Oxygen Demand Influent can be measured.

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Biological Oxygen Demand Influent Formula

Biological Oxygen Demand Influent Example

Biological Oxygen Demand Influent Solution

Biological Oxygen Demand Influent Formula Elements

Other formulas in Food is to Microorganism Ratio or F is to M Ratio category

How to Evaluate Biological Oxygen Demand Influent?

FAQs on Biological Oxygen Demand Influent

Variable Name