Activated Sludge Process: Upgrade with IFAS

Activated Sludge Process: Upgrade with IFAS

After explaining how the activated sludge process works in part 1 we are now taking a closer look on how to increase the wastewater treatment capacity of ASP with IFAS systems.

IFAS stands for integrated fixed film activated sludge and describes the combination of fill media attached growth systems with the activated sludge process. The fill media can either be added to the aeration tank as free floating chips or in the form of retrievable fill media cage units. In both cases the fill media fulfills the same purpose: To provide additional surface area within the aeration tank for attached biofilm growth...

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