Korean Journal of Environmental Agriculture (한국환경농학회지)

The Korean Society of Environmental Agriculture (한국환경농학회)
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Evaluation of Growth Characteristics and Lead Uptake of Lettuce under different application levels of Bottom Ash

저회의 시용수준에 따른 상추의 생육 및 납 흡수 특성 평가

  • Cho, Han-Na (Department of Agricultural Chemistry, Sunchon National University) ;
  • Lee, Seung-Gyu (Department of Agricultural Chemistry, Sunchon National University) ;
  • Kim, So-Hui (Department of Agricultural Chemistry, Sunchon National University) ;
  • Yun, Jin-Ju (Department of Agricultural Chemistry, Sunchon National University) ;
  • Park, Jae-Hyuk (Department of Agricultural Chemistry, Sunchon National University) ;
  • Cho, Ju-Sik (Department of Agricultural Chemistry, Sunchon National University) ;
  • Kang, Se-Won (Department of Agricultural Chemistry, Sunchon National University)
  • 조한나 (순천대학교 일반대학원 농화학과) ;
  • 이승규 (순천대학교 일반대학원 농화학과) ;
  • 김소희 (순천대학교 일반대학원 농화학과) ;
  • 윤진주 (순천대학교 일반대학원 농화학과) ;
  • 박재혁 (순천대학교 일반대학원 농화학과) ;
  • 조주식 (순천대학교 일반대학원 농화학과) ;
  • 강세원 (순천대학교 일반대학원 농화학과)
  • Received : 2022.08.12
  • Accepted : 2022.09.01
  • Published : 2022.09.30
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Abstract

BACKGROUND: Most of the bottom ash(BA) from wood pellet-based thermal power plants that is not recycled is placed into landfill. BA has a function and structure similar to biochar. Hence, BA is classified as waste, but, it is predicted that BA can be used agricultural utilization. METHODS AND RESULTS: To investigate the effect of BA application on lettuce, growth characteristics and Pb contents were examined with BA application levels(0, 1, 2, 3 and 4 g/L), respectively, in hydroponic cultivation with Pb solution. Irrespective with BA application levels, the length, leaf number and fresh weight of lettuce in BA treatments were increased by 84.3~120, 36.2~39.0, and 215~322%, respectively, compared to the BA-0 treatment. The groups with BA treatments, Pb in the nutrient solution was adsorbed to the BA due to the surface area and functional groups of the BA, and the lettuce growth was maintained more smoothly than in the BA-0 treatment. BA application is considered to have created a favorable environment for lettuce growth in hydroponic cultivation with Pb solution. CONCLUSION(S): Although direct comparing the removal effect of heavy metal between BA and biochar is not present, the BA application in contaminated area suggested a significant meaning on the recycling waste, and increasing potential crop productivity by immobilizing heavy metal.

Keywords

Acknowledgement

This research was supported by "Regional Innovation Strategy (RIS)" through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (MOE)(2021RIS-002). Also, this work was supported, in part, by Field Technology Research Project through the Korea South-East Power Co., Ltd. (KOEN).

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