영문초록
The recovery potential of rare earth elements (REE) in coal ash was evaluated in this study. The previous researches were reviewed, and the physicochemical analysis of coal ash collected from a thermal power plant in Korea was conducted. According to the results of particle-size distribution, fly ash could be classificed as a fine-grained soil by unified soil classification system, and showed a uniform particle size distribution. The particle size of bottom ash was a coarse grained soil and the particle-size distribution was well graded compared to that of fly ash. However, there was no significant difference in the physicochemical composition between both the ashs and particle-size. Although REE was not found in the coal ash specimens used in this study, various valuable metallic compounds were observed. The silicate compounds showed the highest contents being 50% (by wt.), followed by 20 and 10% in aluminum oxide and iron hydroxide. There were also the trace elements in oxide forms (e. g., Ca, Mg, K). Unlike previous researches there are no REE detected in the coal ash specimens used in this study. The composition of ash depends on the coal used in the power plant and the detection limits of analytic instruments may be critical.
추천자료
폐기물의 정의 및 종류, 국내외 폐기물오염 사례 분석, 폐기물관리기술과 정책
도시 환경행정 레포트
[건설폐기물] 건설폐기물 처리의 개선방안
[쓰레기(폐기물)]쓰레기(폐기물)의 관리주체, 쓰레기(폐기물)의 시설, 쓰레기(폐기물)의 정책, 쓰레기(폐기물)의 지역갈등, 쓰레기(폐기물)의 재활용, 쓰레기(폐기물)의 사례, 향후 쓰레기(폐기물)의 처리 과제 분석
[자원경제학] 한국의 에너지현황과 대책
[폐기물][방사성폐기물][핵폐기물][사업장폐기물][특수폐기물][유해폐기물]방사성폐기물(핵폐기물), 사업장폐기물, 특수폐기물, 유해폐기물, 지역폐기물, 해양폐기물, 유기성폐기물(폐기물, 방사성폐기물, 핵폐기물)
[환경문제] 저소비경제- 휴대폰소비에 대해서
[자원론] 현재 주요 에너지자원으로 이용되고 있는 우라늄의 앞으로의 전망과 핵발전에 관한 제 문제
(산업 쓰레기 문제) 산업폐기물의 처리 현황과 실태 및 문제점 해결방안
에너지 기술의 발전사와 향후 전망
분야
08207087.pdf [무료 PDF 뷰어 다운로드]
