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Shape and Formation of Aerobic Granulation in SBR  

Yun, Zuwhan (Dept. of Environmental Engineering, Korea University)
Jang, Heeran (Korea Institute of Construction Technology)
Han, Jonghun (Faculty of Korea Third Military Academy)
Han, Hyejung (Dept. of Environmental Engineering, Korea University)
Publication Information
Journal of Korean Society on Water Environment / v.20, no.5, 2004 , pp. 534-538 More about this Journal
Abstract
Granulation characteristics have been studied with an aerobic sequencing batch reactor(SBR). Organic loading of 2.46kg COD/$m^3$/day followed by 4.14kg COD/$m^3$/day had been applied to the lab-scale SBR with a very short settling time during the operating cycle. The granulation proceeded to the diameter range of 3 to 5 mm with MLSS concentration of 12,000mg/L at 45th days of operation while COD removal efficiency remained almost consistent after the granule formation. It has been noticed that aerobic granulation under the higher loading with a very short settling time seemed to be due to the microbial selection of better flocculating species.
Keywords
Aerobic granular sludge; Granulation; SBR;
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