Translations:Wasseraufbereitung und Grauwassernutzung/884/en
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While the design for activated sludge process relies on the sludge load (kg BOD/kg TS/day), a maximum surface loading is generally determined for packing bed processes. This is calculated from the amount of pollutants entering the system per day (g BOD or COD), the area available on lava rocks, plastic growth carriers or equivalent and is given in kg BOD or COD/m²/day.<ref name="isa" />
