RBC 반응조를 이용한 2단 A/O 공정에서 유기물질 및 질소제거
Removal of Organics and Nirtogen in Wastewater Using 2 Stage A/O(RBC) Process
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Abstract
This study was conducted to investigate anoxic-RBC-anoxic-RBC process and its application to remove biologically organics and nitrogen. BOD and total-nitrogen(T-N) removal efficiencies were decreased as volumetric loading rate increased. But, the removal efficiency changes of T-N were little, as compared to BOD. Increase of internal recycle rate had few affect of BOD and T-N removal rates. Also, influent allocation(to 2nd anoxic reactor) had few affect of BOD removal efficiency rate. However, when the influent allocation rate was 30%, T-N removal efficiency was increased to 84.1%. BOD/N ratio applied to 2nd anoxic reactor was increased to range of 3.65~4.37 as influent allocation rate increased to range 20~35%. But, it might also cause adverse effect such as decrease of denitrification rate in excessive influent allocation rate.