A comprehensive fractionation technique was applied to a set of water samples obtained along drinking water treatment process with ozonation and biological activated carbon (BAC) process to obtain detailed profiles of dissolved organic matter (DOM) and to evaluate the haloacetic acid (HAA) formation potentials of these DOM fractions. The results indicated that coagulation-sedimentation-sand filtration treatment showed limited ability to remove hydrophilic fraction (28%), while removal of hydrophobic and transphilic fraction were 57% and 40%, respectively. And ozonation and BAC treatment showed limited ability to remove hydrophobic fractions (6%), while removal of hydrophilic and transphilic fractions were 25% and 18%. The haloacetic acid formation potential (HAAFP)/dissolved organic carbon (DOC) of hydrophilic fraction was the highest along the treatment train and HAAFP/DOC of hydrophilic fraction was higher than hydrophobic and transphilic fraction as 23% 30%, because of better removal for hydrophobic fraction both in concentration and reactivity.

Abstract
 1. 서 론
 2. 실험재료 및 방법
  2.1. Pilot-plant
  2.2. NOM 분류
  2.3. HAAs 생성능 실험
  2.4. 분석
 3. 결과 및 고찰
  3.1. 정수공정별 분류 NOM의 농도 변화
  3.2. 분류된 NOM에서의 HAAs 생성특성
 4. 결론
 참고문헌

• 손희종(부산광역시 상수도사업본부 수질연구소) | Hee-Jong Son (Water Quality Institute, Water authority)
• 황영도(부산광역시 상수도사업본부 수질연구소) | Young-Do Hwang (Water Quality Institute, Water authority)
• 류동춘(부산광역시 상수도사업본부 수질연구소) | Dong-Choon Ryu (Water Quality Institute, Water authority)
• 정철우(울산 테크노파크 정책기획단) | Chul-Woo Jung (Policy Planing Division, Ulsan Technopark)
• 이건(동아대학교 환경공학과) | Gun Lee (Department of Environmental Engineering, Dong-A University)
• 손형식(울산 테크노파크 정책기획단) | Hyeng-Sik Son (Policy Planing Division, Ulsan Technopark) Corresponding author