EngineeringToolkit

BOD Removal Formula

First-order BOD removal in wastewater treatment.

Formula

S = S₀ × e^(-kt)

Discipline: Environmental Engineering. Result unit: mg/L.

Variables and units

  • S — BOD Concentration (mg/L): BOD concentration at time t
  • S₀ — Initial BOD (mg/L): Initial BOD concentration
  • k — Rate Constant (1/day): BOD removal rate constant
  • t — Time (day): Time