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In the present work, the aerobic particle's characteristics were enhanced. A polymer was used to make aerobic granular sludge in short period of time. And operation parameters were calculated for organic matter removal in domestic wastewater using a sequencing batch reactor (SBR). The experiment for sewage (Influent concentration of 63~72 mg COD/L) by using mature aerobic granular sludge showed the organic matter removal rate k and oxygen utilization coefficient a', b' were 10.161 d and 0.87 mg O2/mg CODr, 0.11 mg O2/mg MLVSS.d respectively. Therefore, it was more effective than K value 5~8 d of conventional activated sludge process. The sludge synthetic value and sludge auto-oxydation value were 0.45 mg VSS/mg CODr and 0.05 mg VSS/mg MLVSS.d respectively. Consequently, mortality rates of microorganisms was lower than conventional activated sludge process.

Bio-kinetic and Design Analysis of a Sequencing Batch Reactor by Aerobic Granular Sludge