Science & Environment
Wastewater BOD5 Removal Calculator
Calculate biochemical oxygen demand (BOD5) removal efficiency between influent and effluent.
Your inputs
Change any value to update the result instantly.
BOD5 removal efficiency
92 %
Mass removed per day
115 kg/day
Effluent BOD5
20 mg/L
Influent BOD5
250 mg/L
Formula and working
Removal % = (BOD_in − BOD_out) ÷ BOD_in × 100
- 1
Collect the inputs
Influent BOD5 = 250 mg/L; Effluent BOD5 = 20 mg/L; Flow rate = 500 m³/day
- 2
Apply the formula
Removal % = (BOD_in − BOD_out) ÷ BOD_in × 100
- 3
Result
BOD5 removal efficiency = 92 %
Frequently asked questions
Important limitation
This is an educational estimate based only on the values and formula shown. Verify current rates, rules, units, and professional standards before relying on the result. It is not personalized financial or investment advice.
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