Denitrification Calculator

Calculate denitrification performance and carbon source requirements

Nitrate Parameters

Influent NO3-N (mg/L)

Effluent NO3-N (mg/L)

Flow Rate (m3/day)

Carbon Source

Temperature (C)

Anoxic Volume (m3)

83.3% Removal

Good Denitrification

NO3-N Removed25.0 mg/L

N Mass Removed250.0 kg N/day

N2 Gas Produced500.0 kg/day

Carbon Required750.0 kg/day

Carbon Dose75.0 mg/L

BOD Added1125.0 kg/day

SDNR @ 20C0.1200 mg N/mg VSS/d

Required MLVSS1042 mg/L

Anoxic HRT4.80 hours

Alkalinity Recovered89.3 mg/L

Recycle Ratio (MLE)5.0:1

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MyCalcBuddy Editorial Team

This page is maintained as an educational calculator reference.

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Formula Source: Standard Mathematical References

by Various

ðŸ”„Last reviewed: May 2026

âœ“Formula checks are based on standard references and internal QA review.