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A²/O工程을 利用한 有機物 및 營養鹽類의 同時除去에 關한 硏究
鄭炳坤 군산대학교 1991 群山水産專門大學 硏究報告 Vol.25 No.2
A laboratory investigation has been conducted to evaluate the effects of operating parameters on the removal efficiency of nitrogen, phosphorus and sludge settleability in A2/O process. The results are as follows ; 1. COD removal efficiency showed up to 95% irrespective of internal recycling rate and most of influent COD removed in anaerobic step. 2. Total nitrogen removal efficiency tended to increase as the influent organic substrate concentration increased. The efficiency at the influent concentration of 2000ng COD/L was about 99%. 3. Phosphorus removal efficiency seemed to increase as the influent organic substrate concentration increased. 4. SVI depended considerably upon the influent organic substrate concentration. SVI was marked to 58㎖/g at influent COD of 600mg/ℓ when the influent COD range of 400mg/ℓ to 2000mg/ℓ was applied.