Biofilter Sizing Calculator
Biofilter capacity in a RAS is driven by daily feed load and the ammonia produced per kg of feed (~30 g TAN / kg feed at 45% protein). Media volume is sized to the nitrification rate of the chosen biomedia (typically 0.3–0.7 g TAN / m² / day, or 150–400 g TAN / m³ media / day for K1/K3).
Scenario modelling
Flexes feed load and biomedia performance — MBBR media rates vary with temperature and DO.
Calculator inputs
Results
Estimates Only: This calculator is provided for general informational purposes only. Results are approximate and may contain errors, omissions, or outdated information. They do not constitute legal, financial, engineering, tax, technical, or professional advice. Users are solely responsible for independently verifying all calculations, specifications, prices, regulations, and requirements with qualified professionals before making any decisions. By using this calculator, you acknowledge that the website owners, operators, and affiliates accept no responsibility or liability for any loss, damage, or decisions resulting from its use.
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How supplier matching works
- 1. Private brief. Your spec goes only to manufacturers we have selected for the right category, capacity and export experience.
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- 3. 1–3 comparable quotes. Typically within 5–10 business days, aligned on scope so you can compare like-for-like.
- 4. Financing intro (optional). If needed, we introduce your project to a financing partner. No fee to buyers.
Notes
- Add 20–30% redundancy for peak feeding and biofilter maturation. K1 media is typically filled at 40–60% of reactor volume.