화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Clean Technology, Vol.28, No.1, 63-78, March, 2022
DOI10.7464/ksct.2022.28.1.63  Export Citation
첨단 전자산업 폐수처리시설의 Water Digital Twin(I): e-ASM 모델 개발과 Digital Simulation 구현
Water Digital Twin for High-tech Electronics Industrial Wastewater Treatment System (I): e-ASM Development and Digital Simulation Implementation
심예림1, 이나희1, 정찬혁1, 허성구2, 김상윤2, 남기전2, 유창규1, 2, †
  • 1경희대학교 공과대학 환경학 및 환경공학과, 17104 경기도 용인시 기흥구 덕영대로 1732
  • 2경희대학교 공과대학 환경학 및 환경공학과 융합공학전공, 17104 경기도 용인시 기흥구 덕영대로 1732
Yerim Shim1, Nahui Lee1, Chanhyeok Jeong1, SungKu Heo2, SangYoon Kim2, KiJeon Nam2, and ChangKyoo Yoo1, 2, †
  • 1Department. of Environmental Science and Engineering College of Engineering, Kyung Hee University, 1732, Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 17104, Korea
  • 2Integrated engineering, Department. of Environmental Science and Engineering College of Engineering, Kyung Hee University, 1732, Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 17104, Korea
E-mail:
초록
첨단 전자산업 폐수 처리시설에서 발생되는 유기 폐수는 고농도의 유기물질 및 20가지 이상의 유독 난분해성 물질을 포함하 고 있으며, 이를 효율적으로 처리하는 것은 첨단 전자산업의 당면 과제이다. 따라서, 첨단 전자산업 유기폐수 처리시설을 CPS (Cyber physical system)상 Water digital twin으로 구축하여 COD (Chemical Oxygen Demand), TN (Total Nitrogen), TP (Total Phosphorous) 및 TMAH (Tetramethylammonium hydroxide) 등 유기 오염물질의 제거 효율 평가가 가능한 전자산업 폐수 특화 모델 개발이 필요하다. 본 연구에서는 첨단전자산업 유기폐수 제거 메커니즘에 대한 분해 미생물의 성장과 사멸의 이론적인 반응속도식에 기반한 첨단 전자산업 폐수 특화 활성슬러지 모델(Electronics industrial wastewater activated sludge model, e-ASM)을 개발하였다. 개발한 e-ASM은 전자산업 폐수처리공정에서 발생하는 유기물 산화, 질산화, 및 탈질화 과정뿐만 아 니라 TMAH 등 난분해성 유기물질의 분해과정 중 발생하는 질산화미생물의 저해(Inhibition) 작용 등 복잡한 생물학적 분해 메커니즘이 모사 가능하다. 이를 활용하여 실제 전자산업 유기폐수 처리시설을 Water Digital Twin으로 구현하여 CPS (Cyber physical system) 상에서 전자산업 폐수처리장에 폐수 유입 성상에 따라 공정 모델링, 유출수 예측, 공법 선정, 설계 효율 평가 등 다양한 목적으로 활용될 수 있다.
Electronics industrial wastewater treatment facilities release organic wastewaters containing high concentrations of organic pollutants and more than 20 toxic non-biodegradable pollutants. One of the major challenges of the fourth industrial revolution era for the electronics industry is how to treat electronics industrial wastewater efficiently. Therefore, it is necessary to develop an electronics industrial wastewater modeling technique that can evaluate the removal efficiency of organic pollutants, such as chemical oxygen demand (COD), total nitrogen (TN), total phosphorous (TP), and tetramethylammonium hydroxide (TMAH), by digital twinning an electronics industrial organic wastewater treatment facility in a cyber physical system (CPS). In this study, an electronics industrial wastewater activated sludge model (e-ASM) was developed based on the theoretical reaction rates for the removal mechanisms of electronics industrial wastewater considering the growth and decay of micro-organisms. The developed e-ASM can model complex biological removal mechanisms, such as the inhibition of nitrification micro-organisms by non-biodegradable organic pollutants including TMAH, as well as the oxidation, nitrification, and denitrification processes. The proposed e-ASM can be implemented as a Water Digital Twin for real electronics industrial wastewater treatment systems and be utilized for process modeling, effluent quality prediction, process selection, and design efficiency across varying influent characteristics on a CPS.
Keywords:Water digital twin;High-tech electronics industrial wastewater treatment;Digital transformation;e-ASM,;Cyber-physical system (CPS)
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