Removal characteristics of Cu(II) ions by solid-phase extractant immobilized D2EHPA and TBP in PVC were investigated. Cu(II) ion concentrations in the solution and removal capacity of Cu(II) ion according to operation time were compared. The lower the initial concentration of Cu(II) ion in aqueous solution was, the removal capacity of Cu(II) ion by solid-phase extractant was increased relatively. The bigger the initial concentration of Cu(II) ion was, the removal capacity of Cu(II) ion was increased relatively. The pseudo-second-order kinetics according to operation time was showed more satisfying results than the pseudo-first-order kinetics for the removal velocity of Cu(II) ion. The removal capacity of Cu(II) ion was 0.025 mg/g in aqueous solution of pH 2, but the removal capacity of Cu(II) ion was increased to 0.33 mg/g mg/g in aqueous solution of pH 4 according to increasing pH.

Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 재료
  2.2. 실험방법
 3. 결과 및 고찰
  3.1. 추출제 PVC-D2EHPA/TBP의 특성
  3.2. 시간에 따른 Cu(II) 이온 제거량 변화
  3.3. 속도론적 고찰
  3.4. 수용액의 pH에 따른 Cu(II) 이온의 제거량 변화
 4. 결론
 REFERENCE

• 감상규(제주대학교 환경공학과) | Sang-Kyu Kam (Department of Environmental Engineering, Jeju National University)
• 이송우(부경대학교 화학공학과) | Song-Woo Lee (Department of Chemical Engineering, Pukyong National University)
• 이민규(부경대학교 화학공학과) | Min-Gyu Lee (Department of Chemical Engineering, Pukyong National University) Corresponding author