While a range of natural organic matter (NOM) types can generate high levels of disinfection by-products (DBPs) after chlorination, there is little understanding of which specific compounds act as precursors. Use of eight model compounds allows linking of explicit properties to treatability and DBP formation potential (DBPFP). The removal of model compounds by various treatment processes and their haloacetic acid formation potential (HAAFP) before and after treatment were recorded. The model compounds comprised a range of hydrophobic (HPO) and hydrophilic (HPI) neutral and anionic compounds. On the treatment processes, an ozone oxidation process was moderate for control of model compounds, while the HPO-neutral compound was most treatable with activated carbon process. Biodegradation was successful in removing amino acids, while coagulation and ion exchange process had little effect on neutral molecules. Although compared with the HPO compounds the HPI compounds had low HAAFP the ozone oxidation and biodegradation were capable of increasing their HAAFP. In situations where neutral or HPI molecules have high DBPFP additional treatments may be required to remove recalcitrant NOM and control DBPs.

Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 실험 재료
  2.2. 실험 방법
 3. 결과 및 고찰
  3.1. 응집과 이온교환 공정에서의 모델물질 제거 특성
  3.2. 활성탄 흡착공정에서의 모델물질 제거 특성
  3.3. 오존 산화공정에서의 모델물질 제거 특성
  3.4. 생물여과 공정에서의 모델물질 제거 특성
  3.5. 단위공정 처리 전․후의 염소 소독부산물 생성능 변화
  3.6. 정수처리 공정에 따른 NOM 제거 특성
 4. 결 론
 참 고 문 헌

• 손희종(부산광역시 상수도사업본부 수질연구소) | Hee-Jong Son (Water Quality Institute, Busan Water Authority)
• 정종문(부산광역시 상수도사업본부 수질연구소) | Jong-Moon Jung (Water Quality Institute, Busan Water Authority)
• 최진택(부산광역시 상수도사업본부 수질연구소) | Jin-Taek Choi (Water Quality Institute, Busan Water Authority)
• 손형식(부산대학교 미생물학과) | Hyung-Sik Son (Department of Microbiology, Pusan National University)
• 장성호(부산대학교 바이오환경에너지학과) | Seong-Ho Jang (Department of Bioenviromental Energy, Pusan National University) Corresponding author