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Formation and Characteristics of Aerobic Granular Sludge Using Polymer in Sequencing Batch Reactor  

Lee, Bong-Seob (Department of Environmental Engineering, Dong-A University)
Choi, Seong-Woo (Department of Environmental Engineering, Dong-A University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.31, no.12, 2009 , pp. 1143-1150 More about this Journal
Abstract
This study was carried out to investigate of aerobic granulation by using sequencing batch reactor(SBR). To make aerobic granular sludge in short period of time, we used polymer. In case of SBR, we have studied on physicochemical characteristics of particle size, settling velocity, surface charge, and specific oxygen utilization rate(SOUR) depending on aerobic particle's formation. The results of running SBR with $5.4kg{\cdot}COD/m^3{\cdot}d$ of COD loading rate and 20 days reaction time showed that aerobic particle size, settling velocity, SOUR, surface charge, polysaccharide/protein(PS/PN) ratio were 2.6 mm, 1.7 cm/s, $346mg{\cdot}O_2/g{\cdot}MLVSS{\cdot}hr,\;(-)0.26{\cdot}meq/g{\cdot}MLVSS$, and 2.06 mg/mg respectively.
Keywords
Aerobic Granular; SBR; Settling Velocity; SOUR; Surface Charge;
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