Perfluorooctanoic acid (PFOA) and perfluorooctyl sulfonate (PFOS) is a new persistent organic pollutants of substantial environmental concern. This study investigated the potential of magnetic ion exchange resin (MIEXⓇ) as the adsorbent for the removal of PFOA and PFOS from Nakdong River water. In our batch experiments, we studied the effect of some parameters (pH, temperature, sulfate concentration) on the removal of PFOA and PFOS. The results of sorption kinetics on MIEXⓇ show that it takes 90 min to reach equilibrium but the economical contact time and dosage were 30 min and 10 mL/L. An increase in pH (pH 6∼10) leads to a decrease in PFOA (2.0%) and PFOS (3.6%) sorption on MIEXⓇ. The sorption of both PFOA and PFOS decreases with an increase in ionic strength for sulfate ion (SO4 2-), due to the competition phenomenon. An increase in water temperature (8℃∼28℃) in water leads to a increase in PFOA (2.8%) and PFOS (4.3%) sorption on MIEXⓇ. Based on the sorption behaviors and characteristics of the adsorbents and adsorbates, ion exchange and hydrophobic interaction were deduced to be involved in the sorption, and hemi-micelles possibly formed in the intraparticle pores.

Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 시료수 조제
  2.2. MIEXⓇ 특성 및 접촉 실험
  2.3. 분석
 3. 결과 및 고찰
  3.1. MIEXⓇ 투입량에 따른 PFOA, PFOS 및 DOC 제거특성
  3.2. pH 변화에 따른 PFOA와 PFOS 제거특성
  3.3. 수온 변화에 따른 PFOA와 PFOS 제거특성
  3.4. 황산이온 농도 변화에 따른 PFOA와 PFOS 제거특성
  3.5. MIEXⓇ에서의 PFOA 및 PFOS 제거 메카니즘
 4. 결 론
 참 고 문 헌

• 손희종(부산광역시 상수도사업본부 수질연구소) | Hee-Jong Son (Water Quality Institute, Water authority) Corresponding author
• 염훈식(부산광역시 상수도사업본부 수질연구소) | Hoon-Sik Yoom (Water Quality Institute, Water authority)
• 김경아(부산광역시 상수도사업본부 수질연구소) | Kyung-A Kim (Water Quality Institute, Water authority)
• 유상원(부산광역시 상수도사업본부 수질연구소) | Sang-Weoun Ryu (Water Quality Institute, Water authority)
• 권기원(부산광역시 상수도사업본부 수질연구소) | Ki-Won Kwon (Water Quality Institute, Water authority)