Attached Growth Design: ifas
Attached growth biological treatment design parameters — trickling filter (low rate, high rate, partial BOD, nitrification), TFSC, TFAS, IFAS, MBBR carrier properties and removal/volumetric fluxes, and BAF volumetric loadings, oxygen transfer, denitrification loadings, and backwash rates. Source: Metcalf & Eddy Wastewater Engineering 5th Ed., Chapter 9.
| process type | parameter id | parameter name | unit | value max | value min |
|---|---|---|---|---|---|
| ifas | ifas_fixed_rope_applied_surface | Fixed rope or web applied specific surface area | m²/m³ tank volume | 100 | 50 |
| ifas | ifas_fixed_rope_fill_fraction | Fixed rope or web media fill fraction | % | 80 | 70 |
| ifas | ifas_fixed_rope_hrt | Fixed rope or web aerobic HRT | h | — | 5 |
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