Carbonaceous material prepared from oriental cherry can be used for the adsorption of zinc ion from an aqueous solution. Parameters such as pH (4-11), temperature (293-333 K), mixing intensity (10-120 rpm) and contact time (0.5- 90 min) were studied. Increasing pH (99.6% at pH 11) and temperature (99.8% at 333 K) caused an increase in adsorption capacity. A pseudo-equilibrium state was reached within 1 min of contact time. Removal efficiency of zinc ion remained constant regardless of mixing intensity. The adsorption equilibrium data were best represented by the Freundlich adsorption isotherm. The calculated maximum adsorption capacity was 3.541 mg/g. Thermodynamic studies demonstrated that the adsorption process was spontaneous with Gibb’s free-energy values ranging between -3.272 and -15.594 kJ/mol and endothermic with an enthalpy value of 86.984 kJ/mol. Therefore, carbonaceous material from oriental cherry was shown to have good potential for the adsorption of zinc ion.

Abstract
 I. 서 론
 II. 연구방법
  1. 실험 재료 및 방법
  2. 분석 방법
 III. 결과 및 고찰
  1. 벚나무 탄화물의 성분 및 특성
  2. 흡착제 투여량에 따른 제거효율
  3. pH에 따른 제거효율
  4. 온도에 따른 제거효율
  5. 교반강도와 반응시간에 따른 제거효율
  6. 등온흡착식
 IV. 결 론
 References

• 배우빈(강원대학교 환경공학과) | Woo-Bin Bae (Department of Environmental Engineering, Kangwon National University)
• 박가람(강원대학교 환경공학과) | Ga-Ram Park (Department of Environmental Engineering, Kangwon National University)
• 정다윤(강원대학교 환경공학과) | Da-Yoon Jung (Department of Environmental Engineering, Kangwon National University)
• 안종화(강원대학교 환경공학과) | Johng-Hwa Ahn (Department of Environmental Engineering, Kangwon National University) Corresponding Author