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sci.water-quality-bod Calculator
Calculates biochemical oxygen demand and chemical oxygen demand for wastewater characterisation and treatment sizing. BOD5 (5-day test at 20 °C) is the standard for wastewater permit compliance — BOD:COD ratio < 0.3 suggests non-biodegradable organics requiring physicochemical rather than biological treatment.
Inputs
Bod5 Mg L
Reference formula or conversion factor shown for context.
Do Initial Mg L
Reference formula or conversion factor shown for context.
Do Final Mg L
Reference formula or conversion factor shown for context.
Dilution Factor
A multiplier applied in the calculation.
Temperature C
Thermal state of the substance. Check whether the formula needs Celsius, Fahrenheit, or Kelvin (K = °C + 273.15).
Results
measured BOD (mg/L)
Reference formula or conversion factor shown for context.