Rapid cultivation of aerobic granular sludge in laboratory scale sequencing batch reactor

Abstract Aerobic granular sludge (AGS) is known as excellent biological treatment for wastewater industry, high organic load and adsorption of heavy metal. AGS have some advantages such higher density, biomass retention, simultaneous nutrient removal tolerance to toxicity. The aim this research use sequencing batch reactor (SBR) cultivate in the short time (28 days) laboratory scale. Experimental condition that we are based on parameter: 1.5 hours total cycle time, 50 % exchange ratio, 3 HRT l/min air flow rate. Even cultivation successfully achieve 28 days with pH around 7-9, DO 3.6 mg/l, SVI 232.6 MLSS 500 it still need more generate mature breakdown molecule wastewater.