난분해성 폐수처리를 위해 Bioaugmentation한 생물막 반응기에 관한 연구 = The Study on the Augmented Bioreactor for the Treatment of Recalcitrant Wastewater

다국어 초록 (Multilingual Abstract)

The effect on the stability of biofilm and phenol removal efficiency under high phenol loading was investigated by RBC(Rotating Biological Contactor) using augmented reactor and unaugmented reactor with Rhodococcus sp. EL-GT. The operation of RBCs was carried out at rotating speed of 10 rpm and hydraulic retention time of 7 h at 20℃.
The maximum amount of dry weight of the biofilm was 0.04 g/㎠ to running time for 15 days. The amount of attached biofilm of contactors was stabilized as 0.15∼0.03 g/㎠ for 35 days' running times and that of two reactors was similar value. But unaugmented reactor was shocked at 1,200 mg/ℓ phenol loading that the biofilm and removal efficiency were impacted.
The bioaugmentation reactor showed higher removal rates than unaugmented reactors about phenol, sCOD and nitrogen contents. Bioaugmentation, with the strain originating from the same ecosystem and growing effectively on a selective substrate, was often effective means to treatment of recalcitrants like as phenol wastewater.

목차 (Table of Contents)

• 1. 서 론
• 2. 재료 및 방법
• 2.1 사용균주 및 배양조건
• 2.2 RBC장치와 운전조건
• 2.3 생물막의 시료채취와 특성
• 2.4 분석방법
• 3. 결과 및 고찰
• 3.1 페놀분해를 목적으로 한 RBC 반응기에서의 augmentation효과
• 3.2 페놀폐수의 처리효율에의 영향인자
• 4. 결 론
• 감사의 글