SPECIFICATION SHEET • SI METRIC
CAT: AQUA

Biofilter Ammonia Production

Calculate feed-derived total ammonia nitrogen load and the media area required at a declared removal rate.

CALCULATION SCOPE — Deterministic calculation within the published assumptions. Independently verify all design decisions and project-specific code requirements.
INPUT DESIGN PARAMETERS (SI)
kg/day
%
%
g/m²/day
CALCULATED SPECIFICATION OUTPUT
Total TAN
1.2 kg/day
Required Media Area2400 m²

Related planning checklists

This calculator appears in the following engineering planning checklists:

1. Tank Exchange Rate2. Biofilter Ammonia Production3. Raceway Oxygenation

Technical Methodology & Engineering Principles

GOVERNING EQUATION
TAN load = feed rate × protein fraction × declared TAN-yield fraction; media area = TAN load × 1000 / media removal rate.
Assumptions & Scope

The entered TAN yield and media removal rate are site-specific design inputs. Temperature, pH, alkalinity, dissolved oxygen, start-up, peak feeding, and fouling are not modeled.

Operating Range & Boundary

Feed, protein, and TAN yield must be non-negative; media removal rate must be positive.