체류시간(滯留時間)과 원판회전속도(圓板回轉速度)가 회전원판생물막법(回轉圓板生物膜法)의 처리효율(處理効率)에 미치는 영향(影響) = Effects of Detention Time and Disc Speed on the Treatment Efficiencies of RBC

다국어 초록 (Multilingual Abstract)

A mult-stage rotating biological contactor process was evaluated by using the mixtures of nightsoil and sewage as influent substrate. An emphasis was concentrated on the BOD removal efficiency at each stage of the process with respect to hydraulic detention times, rotating speeds of the disc and influent organic substrate concentrations. The results indicated that the process was found to be economically feasible when operated at hyduraulic detention time of 2 hours and disc rotating speed of 3 RPH. As to treatment efficiency, BOD removal efficiency of 40 to 50 percent could be obtained at the first stage regardless of influent organic substrate concentrations. The overall BOD removal efficiency of the process was found to be 88 to 90 percent at even high organic loading of $2.0kgBOD/m^3{\cdot}day$.