Effect of Weathering of Bottom Ash on Mitigation of Green House Gases Emission from Upland Soil

Heo, Do Young; Hong, Chang Oh

doi:10.5338/kjea.2019.38.4.33

Cited by 1 publication

(1 citation statement)

References 33 publications

(16 reference statements)

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“…최근 대한민 국 내 바이오매스 발전소의 증가로 인해 연간 발생하는 저회의 발생량은 약 2.7만톤으로 대부분 토양에 매립 폐기되고 있다 [12]. 따라서 매년 발생하는 저회를 효과적으로 활용하고, 경제 적 이점을 제공할 수 있는 활용 방안 연구가 필요하다 [13,14].…”

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Adsorption Effect of Heavy Metals (Zn, Ni, Cd, Cu) in Aqueous Solution Using Bottom Ash of Biomass Power Plant

Kim¹,

Lee²,

Yun³

et al. 2022

Korean Journal of Environmental Agriculture

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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.

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