Formation of disinfection by-products (DBPs) including trihalomethans (THMs) and haloacetic acids (HAAs) from chlorination of six different species (Chlorella vulgaris, Scenedesmus sp., Anabaena cylindrical, Microcystis aeruginosa, Asterionella formosa and Aulacoseira sp.) of algal extracellular organic matter (EOM). The EOM characteristics evaluation of six algal species reaching at the stationary phase in the growth curve showed most of its SUVA254 showed below 1 and this means hydrophilic organic matter is much higher than hydrophobic organic matter. Chloroform formation potential (CFFP), dichloroacetic acid formation potential (DCAAFP) and trichloroacetic acid formation potential (TCAAFP) were mainly composed of THMFP and HAAFP in the EOM of various algal species. In the case of THMFP/DOC and HAAFP/DOC values, EOM of blue-green algae has appeared highest and EOM of green algae and diatom in order. THMFP/DOC was higher than HAAFP/DOC in EOM of blue-green algae. In comparison of formation potential by unit DOC composed of HAAFP in algal species EOM, DCAAFP/DOC was 1.5 times to 7.5 time higher than TCAAFP/DOC in the EOM of blue-green algae, while DCAAFP/DOC was found to be relatively high compared to TCAAFP/DOC in the EOM of green algae and diatom.

Abstract
 1. 서 론
 2. 실험재료 및 방법
  2.1. 조류 배양 및 전처리
  2.2. EOM 분리 및 농도 측정
  2.3. 염소 소독부산물 생성능 실험 및 분석
 3. 결과 및 고찰
  3.1. EOM 특성
 4. 결론
 REFERENCE

• 손희종(부산광역시 상수도사업본부 수질연구소) | Hee-Jong Son (Water Quality Institute, Water authority) Corresponding author
• 박홍기(부산광역시 상수도사업본부 수질연구소) | Hong-Ki Park (Water Quality Institute, Water authority)
• 황영도(부산광역시 상수도사업본부 수질연구소) | Young-Do Hwang (Water Quality Institute, Water authority)
• 정종문(부산광역시 상수도사업본부 수질연구소) | Jong-Moon Jung (Water Quality Institute, Water authority)
• 김상구(부산광역시 상수도사업본부 수질연구소) | Sang-Goo Kim (Water Quality Institute, Water authority)