Science & Environment
Chemical Oxygen Demand (COD) Industrial Effluent Calculator
Estimate COD load and removal efficiency for industrial wastewater effluent.
Your inputs
Change any value to update the result instantly.
COD load removed
210 kg/day
Removal efficiency
87.5 %
Influent COD load
240 kg/day
Effluent COD
100 mg/L
Formula and working
Load (kg/day) = COD (mg/L) × flow (m³/day) ÷ 1000; Removal % = (COD_in − COD_out) ÷ COD_in × 100
- 1
Collect the inputs
Influent COD = 800 mg/L; Effluent COD = 100 mg/L; Flow rate = 300 m³/day
- 2
Apply the formula
Load (kg/day) = COD (mg/L) × flow (m³/day) ÷ 1000; Removal % = (COD_in − COD_out) ÷ COD_in × 100
- 3
Result
COD load removed = 210 kg/day
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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