Journal of Korean Society of Environmental Engineers (대한환경공학회지)

Korean Society of Environmental Engineers (대한환경공학회)
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Preparation of Activated Carbon from Wasted Food by Chemical Activation with Zinc Chloride

염화아연 약품활성화를 이용한 음식물쓰레기로부터 활성탄 제조

  • Kang, Hwa-Young (Department of Civil and Environment, Hanyeong College) ;
  • Lee, Young-Dong (Division of Environmental and Chemical Engineering, Chonbuk National University) ;
  • Kim, Se-Hoon (Division of Environmental and Chemical Engineering, Chonbuk National University) ;
  • Park, Sung-Bong (Division of Civil and Environmental Engineering, Sunchon National University) ;
  • Jung, Jae-Sung (Division of Civil and Environmental Engineering, Sunchon National University) ;
  • Park, Sang-Sook (Division of Civil and Environmental Engineering, Sunchon National University)
  • 강화영 (한영대학 토목환경과) ;
  • 이영동 (전북대학교 환경.화학공학부) ;
  • 김세훈 (전북대학교 환경.화학공학부) ;
  • 박성봉 (순천대학교 토목.환경공학부) ;
  • 정재성 (순천대학교 토목.환경공학부) ;
  • 박상숙 (순천대학교 토목.환경공학부)
  • Published : 2008.09.30
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Abstract

It was studied to utilize wasted food as a starting material to produce for activated carbon. The wasted food was chemically activated with zinc chloride. Experiments were carried out at different chemical ratios(activating agent/wasted foods), activation temperatures, and activation time. The activated products were characterized by measuring the iodine and methylene blue number, the BET surface area, the pore volume, the micropore ratio, the pore diameter, the yields and the scanning electron microscope(SEM). For the products activated by impregnation ratio of 1.0 of ZnCl$_2$ at 500$^{\circ}C$ for 60 min in a rotary kiln reactor had iodine number of 480 mg/g, methylene blue number of 95 mL/g, BET surface area of 410 m$^2$/g, pore volume of 0.248 cm$^3$/g, and average pore diameter of 2.43 nm, respectively. The activated carbon obtained had the contribution of micropore area of 70.7% to the total pore area and micropore volume of 53.2% to the total pore volume.

활성탄을 제조하기 위하여 원료물질로서 음식물쓰레기를 이용하였다. 음식물쓰레기를 염화아연으로 약품활성화 하였다. 실험은 서로 다른 약품첨가비율(활성화제/음식물쓰레기), 활성화 온도, 그리고 활성화시간을 변수로 하여 수행하였다. 활성화물의 특성을 나타내기 위하여 요오드가와 메틸렌블루 가, BET 표면적, 세공 용적, 미세공 비율, 세공 직경, 수율 그리고 주사전자현미경 관찰을 수행하였다. 로터리 킬른 반응로를 이용하여 염화아연 함침비 1.0배인 시료를 500$^{\circ}C$에서 60분 동안 활성화하여 제조한 활성화물의 요오드가는 480 mg/g, 메틸렌블루 가는 95 mL/g, BET 표면적은 410 m$^2$/g, 세공 용적은 0.248 cm$^3$/g, 그리고 평균세공직경은 2.43 nm로 나타났다. 제조한 활성탄의 총 표면적중 미세공 면적 비율은 70.7%, 총 세공 용적 중 미세공 용적 비율은 53.2%를 나타냈다.

Keywords

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