유입 COD 농도에 따른 DPAOs와 GAOs의 거동

다국어 초록 (Multilingual Abstract)

This study was carried out to confirm the existence of DPAOs in anaerobic-anoxic zone, investigate P uptake amount in anoxic zone using PHA stored and find out the rate of P uptake/ P release according to the variation of influent COD loading.
Influent wastewater was divided into two classes, the 1st and 2nd influent, in order to minimize the effect of NO3- in anaerobic tank.
The characteristics of NH3, SP in the 1st influent were 20mg/L, 6mg/L and NO3^(-) in the 2nd influent were 20mg/L and those of COD in the 1st's were 300, 150, 50mg/L as case Ⅰ, Ⅱ, Ⅲ respectively.
The results were concluded as follows:
1) COD removed amount of DPAOs in caseⅠ～Ⅲ was 1545.60, 347.0, 396.72mg/day separately. And the intake amount that is of DPAOs that use this by carbon source showed by 447.48, -0.48 -10.00mg/day
2) The rate of P uptake/ P release in case Ⅰ～Ⅲ was 1.12, 0.09, 0.76 respectively.
3) In conclusion, the optimum concentration of influent COD can be defined
300mg/L. Aactivity of DPAOs could that become dull than activity of GAOs under 150mg/L COD concentration.

목차 (Table of Contents)

• 차례
• 1. 서론 = 1
• 1.1 연구 배경 및 동향 = 1
• 1.2 연구의 필요성 및 목적 = 3
• 2. 문헌연구 = 7
• 2.1 생물학적 처리에 있어서 중요한 미생물 = 7
• 2.1.1 박테리아(Bacteria) = 7
• 2.2 박테리아의 성장 = 11
• 2.2.1 순수배양시 일반적인 성장양상 = 11
• 2.2.2 박테리아의 수에 따른 성장 = 11
• 2.2.3 박테리아 양에 따른 성장 = 13
• 2.2.4 혼합배양시 성장 = 14
• 2.3 생물학적 질소제거 = 15
• 2.3.1 질산화 반응 (Nitrification Reaction) = 16
• 2.3.2 탈질 반응(Denitrification Reaction) = 17
• (1) 관련 미생물과 기본이론 = 17
• (2) 탈질의 주요 영향 인자 = 20
• 2.4 생물학적 인 제거 = 24
• 2.4.1 관련 미생물 = 27
• 2.4.2 인 제거 반응 기작 = 28
• (1) Comeau-Wentzel Model = 28
• (2) Mino Model = 30
• 2.4.3 영향 인자 = 32
• 3. 실험 = 39
• 3.1 실험 장치 및 실험 방법 = 39
• 3.2 유입수의 성상 = 40
• 3.3 운전 = 42
• 3.4 수질분석 방법 = 44
• 3.5. 기본 가정 및 계산법 = 45
• 3.5.1 가정 = 45
• 3.5.2 계산법 = 46
• 4. 실험 결과 및 분석 = 47
• 4.1 유기물질 제거 = 47
• 4.2 질소 제거 = 50
• 4.2.1 NH₃ 제거 = 50
• 4.2.2 NO₃ 제거 = 53
• 4.3 인 제거 = 56
• 5. 결론 = 60
• 참고문헌 = 62
• Abstract = 70