Reduction of sludge generation by the addition of support material in a cyclic activated sludge system for municipal wastewater treatment

- The addition of Biobob® carrier decreases the MLVSS concentration.
- The addition of Biobob® carrier decreases the waste sludge production.
- The Yobs reduces 36% with support material volume ratio of 18%.
- The addition of Biobob® did not affect system performance for COD and TSS removal.
- The nitrification was improved by 24% with 18% (v/v) carrier.