수학적 모델 및 퍼지 추론에 의한 고도 활성슬러지 공정의 통합 평가 = Integrated Evaluation of Advanced Activated Sludge Processes Based on Mathematical Model and Fuzzy Inference

다국어 초록 (Multilingual Abstract)

At present, the biological nutrient removal (BNR) process for removal of nitrogen and phosphorus is being constructing to keep pace with the reinforced standard of effluent quality and the traditional activated sludge process of preexistence is being promoting to retrofit. At the most case of retrofitting, processes are subjected to be under consideration as alternative BNR process for retrofitting. However, process evaluation methods are restricted to compare only treatment efficiency. Therefore, when BNR process apply, process evaluation was needed various method for treatment efficiency as well as sludge production and aeration cost, and all. In this study, the evaluation method of alternative process was suggested for the case for retrofitting S wastewater treatment plant which has been operated the standard activated sludge process. Three BNR processes for evaluation of proper alternatative process were selected and evaluated with suggested method. The selected $A^2$/O, VIP and DNR processes were evaluated using the mathematical model which is time and cost effective as well as gathered objective evaluation criteria. The evaluation between 5 individual criteria was possible including sludge production and energy efficiency as well as treatment performance. The objective final decision method for selection of optimal process was established through the fuzzy inference.

참고문헌 (Reference)

1 환경부, "하수도통계"

2 오수진, "정량적인 인과관계표를 이용한 5단분할 주입질소∙인제거공정의PID 제어" 부산대학교 2006

3 정정은, "안정화된 침출수의 고농도 질소제거에 요구되는 대체외 부탄소원 선정 및 적용에 관한 연구" 부산대학교 2005

4 이의신, "생물학적 질소∙인제거(DNR) 공법" 10 (10): 98-104, 2002

5 김민한, "모델링 기법을 이용한 하수처리 공정 설계와 환경성 및 경제성 평가" 한국화학공학회 46 (46): 610-618, 2008

6 환경관리공단, "고도처리공법"

7 P. Aarne Vesilind, "Wastewater Treatment Plant Design" Water Environment Federation 2003

8 Copp, J. B., "The COST simulation benchmark: description and simulator mamual" Office for Official Publications of the European Community, Luxembourg 2002

9 Lee, S. H., "Practical approach to parameter estimation for ASM3+bio-P module applied to five-stage step-feed EBPR process" 53 (53): 139-148, 2006

10 Jeppson, U., "Modelling Aspects of Wastewater Treatment Processes" Lund Institute of Technology 1996

11 Orhon, D., "COD fractionation in wastewater characterization-The state of the art" 68 : 284-293, 1996

12 Takacs, I., "A dynamic model of the clarification thickening process" 25 (25): 1263-1271, 1991