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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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In this study, the adsorption of $Cu^{2+}$ and $Cd^{2+}$ from aqueous solution on the biochar derived from used coffee grounds at different pyrolysis temperatures has been investigated as a potential low-cost treatment method for heavy metal-containing waters. Three biochar samples prepared by heating coffee sludge at temperature of $300^{\circ}C$ (B300), $500^{\circ}C$ (B500), and $700^{\circ}C$ (B700) were tested for the adsorption capacity and kinetics of Cd and Cu. Also the influencing factor of heavy metal removal by ion exchange in terms of cation exchange capacity (CEC) of each biochar was measured. Adsorption of Ca and Cu by biochar produced at higher pyrolysis temperature showed higher adsorption capacity but the optimal pyrolysis temperature based on performance and economy was known as $500^{\circ}C$. Sorption of Cu and Cd by biochar followed a Langmuir model at pH 6~6.5, attributing mainly to surface sorption. The biochar was more effective in Cu and Cd sorption than activated carbon (AC), with BC 500 being the most effective, which indicates that sorption of Cd and Cu by coffee sludge biochar is partly influenced by chemical sorption on surface functional group as well as physical sorption.
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참고문헌 (14)
참고문헌 신청
김정대 / 2008 / 목질계 바이오매스 에너지화를 위한 처리기술 및 방안 검토 / 008 유기성자원학회 공동심포지엄 및 춘계학술발표회 :97~111
이수민 / 2011 / 목재를 이용한 새로운 유전(油田) 개발 / 임업정보 :88~92
Aristidis, N.A. / 2010 / Development of a sequential injection dispersive liquid–liquid microextraction system for electrothermal atomic absorption spectrometry by using a hydrophobic sorbent material: Determination of lead and cadmium in natural waters / Analytica Chimica Acta 668:35~40
Cao, X. / 2009 / Dairy-Manure Derived Biochar Effectively Sorbs Lead and Atrazine / Environ. Sci. Technol 43:3285~3291
Dinesh, M. / 2007 / Sorption of arsenic, cadmium, and lead by chars produced from fast pyrolysis of wood and bark during bio-oil production / J. Colloid and Interface Science 310:57~73
이수민 / 2011 / 목재를 이용한 새로운 유전(油田) 개발 / 임업정보 :88~92
Aristidis, N.A. / 2010 / Development of a sequential injection dispersive liquid–liquid microextraction system for electrothermal atomic absorption spectrometry by using a hydrophobic sorbent material: Determination of lead and cadmium in natural waters / Analytica Chimica Acta 668:35~40
Cao, X. / 2009 / Dairy-Manure Derived Biochar Effectively Sorbs Lead and Atrazine / Environ. Sci. Technol 43:3285~3291
Dinesh, M. / 2007 / Sorption of arsenic, cadmium, and lead by chars produced from fast pyrolysis of wood and bark during bio-oil production / J. Colloid and Interface Science 310:57~73
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