The removal property of Cu and Zn ions by chemical precipitation and adsorption using zeolite(Z-C1) prepared from coal fly ash(CFA) were evaluated in this study. Adsorption kinetic and equilibrium mechanisms described to analyze parameters and correlation factors with Lagergen 1st and 2nd order model and Langmuir and Freundlich model. Analysis of adsorption kinetics data revealed that the pseudo 2nd order kinetics mechanism was predominant. The equilibrium data in pH 3 - 5 were able to be fitted well to a Langmuir model, by which the maximum adsorption capacities(qmax) were determined at 124.9 - 140.1 mg Cu2+/g and 153.2 - 166.9 mg Zn2+/g, respectively. We found that Z-C1 has a potential application as absorbents in metal ion recovery with low pH.

Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 흡착제와 중금속
  2.2. pH 조절 및 흡착 실험
  2.3. 분석 방법
 3. 결과 및 고찰
  3.1. 비산재를 이용한 제올라이트(Z-C1) 합성
  3.2. pH에 따른 Cu2+와 Zn2+ 이온의 용해 및 석출량
  3.3. Cu2+와 Zn2+ 이온의 pH에 따른 흡착속도
  3.4. Cu2+와 Zn2+의 pH에 따른 등온흡착량
 4. 결 론
 참 고 문 헌

• 이창한(부산가톨릭대학교 환경행정학과) | Chang-Han Lee (Department of Environmental Administration, Catholic University of Pusan) Corresponding author