Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Removal Characteristics of Endocrine Disrupting Compounds (EDCs), Pharmaceutically Active Compounds (PhACs) and Personal Care Products (PCPs) by NF Membrane

NF막을 이용한 EDCs, PhACs, PCPs 물질의 제거 특성 평가

  • 장혜원 (고려대학교 공과대학 사회환경시스템공학과) ;
  • 박찬혁 (한국과학기술연구원 환경기술연구단) ;
  • 홍승관 (고려대학교 공과대학 사회환경시스템공학과) ;
  • 윤여민 ;
  • 정진영 (한국과학기술연구원 환경기술연구단) ;
  • 정윤철 (한국과학기술연구원 환경기술연구단)
  • Received : 2007.03.20
  • Accepted : 2007.06.12
  • Published : 2007.06.15
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Abstract

Reports of endocrine disrupting compounds (EDCs), pharmaceutically active compounds (PhACs), and personal care products (PCPs) have raised substantial concern in important potable drinking water quality issues. Our study investigates the removal of EDCs, PhACs, and PCPs of 10 compounds having different physico-chemical properties (e.g., molecular weight, and octanol-water partition coefficient ($K_{OW}$)) by nanofiltration (NF) membranes. The rejection of micropollutants by NF membranes ranged from 93.9% to 99.9% depending on solute characteristics. A batch adsorption experiments indicated that adsorption is an important mechanism for transport/removal of relatively hydrophobic compounds, and is related to the octanol-water partition coefficient values. The transport phenomenon associated with adsorption may also depend on solution water chemistry such as pH and ionic strength influencing the pKa value of compounds. In addition, it was visually seen that the retention was somewhat higher for the larger compounds based on their molecular weight. These results suggest that the NF membrane retains many organic compounds due to both hydrophobic adsorption and size exclusion mechanisms.

Keywords

Acknowledgement

Grant : 생물학적 유해물질 제어기술 개발, 환경 유해물질 제어를 위한 기능성 나노 구조체 기술 개발

Supported by : 한국과학기술연구원, 기초기술연구회

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