The adsorption experiments of lithium ions were conducted in the fixed bed column packed with activated carbon modified with nitric acid. Effect of inlet concentration, bed hight and flow rate on the removal of lithium ions was investigated. The experimental results showed that the removal and the adsorption capacity of lithium ions increased with increasing inlet concentration, and decreased with increasing flow rate. When the bed height increased, the removal and the adsorption capacity increased. The breakthrough curves gave a good fit to Bohart-Adams model. Adsorption capacity and breakthrough time calculated from Bohart-Adams model, these results were remarkably consistent with the experimental values. The adsorption capacity was not changed in the case of 3 times repetitive use of adsorbent.

Abstract
 1. 서 론
 2. 재료 및 방법
  2.1 실험 재료
  2.2 실험 방법
 3. 결과 및 고찰
  3.1 유입농도에 다른 파과특성
  3.2 유량에 따른 파과특성
  3.3 층높이에 따른 파과특성
  3.4 재사용 실험
  3.5. 파과곡선 모델링
 4. 결 론
 참고문헌

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