Korean Journal of Environmental Agriculture (한국환경농학회지)

The Korean Society of Environmental Agriculture (한국환경농학회)
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Adsorption Effect of Heavy Metals (Zn, Ni, Cd, Cu) in Aqueous Solution Using Bottom Ash of Biomass Power Plant

바이오매스 발전소 저회를 활용한 수용액 내 중금속(Zn, Ni, Cd, Cu) 흡착 효과

  • So-Hui Kim (Department of Agricultural Chemistry & Interdisciplinary Program in IT-Bio Convergence System, Sunchon National University) ;
  • Seung-Gyu Lee (Department of Agricultural Chemistry & Interdisciplinary Program in IT-Bio Convergence System, Sunchon National University) ;
  • Jin-Ju Yun (Department of Agricultural Chemistry & Interdisciplinary Program in IT-Bio Convergence System, Sunchon National University) ;
  • Jae-Hyuk Park (Department of Agricultural Chemistry & Interdisciplinary Program in IT-Bio Convergence System, Sunchon National University) ;
  • Se-Won Kang (Department of Agricultural Life Science, Sunchon National University) ;
  • Ju-Sik Cho (Department of Agricultural Chemistry & Interdisciplinary Program in IT-Bio Convergence System, Sunchon National University)
  • 김소희 (순천대학교 일반대학원 농화학과 & IT-Bio 융합시스템전공) ;
  • 이승규 (순천대학교 일반대학원 농화학과 & IT-Bio 융합시스템전공) ;
  • 윤진주 (순천대학교 일반대학원 농화학과 & IT-Bio 융합시스템전공) ;
  • 박재혁 (순천대학교 일반대학원 농화학과 & IT-Bio 융합시스템전공) ;
  • 강세원 (순천대학교 생명산업과학대학 농생명과학과) ;
  • 조주식 (순천대학교 일반대학원 농화학과 & IT-Bio 융합시스템전공)
  • Received : 2022.10.31
  • Accepted : 2022.11.23
  • Published : 2022.12.31
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Abstract

BACKGROUND: The number of biomass power plants is increasing around the world and the amount of wastes from power plants is expected to increase. But the bottom ash (BA) is not recycled and has been dumped in landfill. This study was conducted to find out functional groups of BA and adsorption rate of heavy metals on BA. METHODS AND RESULTS: The BA was dried in oven at 105℃ for 24 hours, and characterized by analyzing the chemistry, functional group, and surface area. The adsorption rates of heavy metals on BA were evaluated by different concentration, time, and pH. As a result, the adsorption amount of the heavy metals was high in the order of Zn> Cu> Cd> Ni and the removal rates of Zn, Cu, Cd, and Ni by BA was 49.75, 30.20, 32.46, and 36.10%, respectively. Also, the maximum adsorption capacity of BA was different by the heavy metal in the environmental conditions, and it was suggested that the isotherms for Zn, Ni, Cd, and Cu were adequate to Langmuir model. CONCLUSION(S): It is suggested that it would be effective to remove heavy metals in aqueous solution by using BA from biomass power plants in South Korea.

Keywords

Acknowledgement

This work was carried out with the support of the Field Technology Research Project through the Korea South-East Power Co., Ltd. (KOEN).

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