Aeration Oxygen Requirement Calculator
Separate independent carbonaceous/nitrification demands and denitrification oxygen-equivalent credit, actual transfer explicit; signed net accounting not installed aeration safety. Caller independently establishes units, regime, calibration and applicability; this does not establish design-code compliance, authenticity, operational safety, treatment efficacy or a validated forecast.
Description
Aeration demand combines oxygen requirements with a declared credit and transfer efficiency.
Aeration demand combines oxygen requirements with a declared credit and transfer efficiency.1
This balance does not derive biological loads or select an aeration system. Use Aeration Oxygen Requirement Calculator to evaluate the supplied inputs under the specific model below.
When to use Aeration Oxygen Requirement Calculator
Use Aeration Oxygen Requirement Calculator to evaluate the supplied inputs under the specific model below. Establish the units, measurement scope and applicable model or recipe assumptions before entering values.
How to use Aeration Oxygen Requirement Calculator and understand its results
- Establish the units, measurement scope and applicable model or recipe assumptions before entering values.
- Enter Caller carbonaceous oxygen kg day, Caller nitrification oxygen kg day, Caller independent denitrification credit kg day, Caller actual transfer fraction using the field table and validation rules below, then run the tool.
- Read Modeled gross aeration oxygen kg day and interpret units, signs, ordering and placeholders as explained below.
- If the tool reports an input error, correct that field and rerun. A successful false result, empty match list or unknown-evidence placeholder has the specific meaning described here; check the limitations before applying the result.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| callerCarbonaceousOxygenKgDay | Caller carbonaceous oxygen kg day | number | Required; constraints below |
| callerNitrificationOxygenKgDay | Caller nitrification oxygen kg day | number | Required; constraints below |
| callerIndependentDenitrificationCreditKgDay | Caller independent denitrification credit kg day | number | Required; constraints below |
| callerActualTransferFraction | Caller actual transfer fraction | number | Required; constraints below |
Enter nonnegative carbonaceous and nitrification oxygen amounts and denitrification credit in kg/day, plus an actual transfer fraction greater than 0 and no greater than 1. Subtract the credit from demand and divide by transfer fraction. Excess credit can produce a negative result; the tool does not clamp it or establish a treatment operating requirement.
grossOxygenKgDay = (carbonaceous+nitrification−denitrificationCredit)/transferFraction Field order, units and branch conditions follow the implementation explanation above.
| Output field | Meaning | Value type |
|---|---|---|
| modeledGrossAerationOxygenKgDay | Modeled gross aeration oxygen kg day | number |
{
"input": {
"callerCarbonaceousOxygenKgDay": 10,
"callerNitrificationOxygenKgDay": 5,
"callerIndependentDenitrificationCreditKgDay": 2,
"callerActualTransferFraction": 0.5
},
"output": {
"modeledGrossAerationOxygenKgDay": 26
}
}Limitations and assumptions
This balance does not derive biological loads or select an aeration system. Apply the exact scope and assumptions described above.
All listed fields require explicit values. Unexpected fields, incorrect types, nonfinite numbers and sparse arrays fail validation. Domain-specific bounds, alignments and supported tokens are stated above; extremely large inputs or outputs can also be rejected. These errors differ from successful results such as false, no matches or unknown evidence.
Alternative or Complementary methods
Use Coagulant Dose Calculator for a related task: An observed coagulant concentration combines added active mass with treated water volume.
Use Cross-Flow NTU Effectiveness Calculator for a related task: Crossflow effectiveness depends on transfer units, heat-capacity ratio and flow arrangement.
References
-
Aeration Oxygen Requirement Calculator — tool.io
Similar or alternative tools
- Coagulant Dose Calculator
An observed coagulant concentration combines added active mass with treated water volume.
- Cross-Flow NTU Effectiveness Calculator
Crossflow effectiveness depends on transfer units, heat-capacity ratio and flow arrangement.