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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국전력공사 KEPCO Journal on electric power and energy KEPCO Journal on electric power and energy 제1권 제1호
- 발행연도
- 2015.1
- 수록면
- 121 - 125 (5page)
이용수
초록· 키워드
오류제보하기
Distribution of rare earth metals (REMs) and rare valuable metals (RVMs) contents in coal ashes (fly ash, bottom ash, and pond ash) and leachate from 11 coal-fired power plants in Korea were investigated. Coal ashes and leachates were found to contain important REMs and RVMs such as Yttrium (Y) and Neodymium (Nd), which was in the range of 23~75 mg/kg. However, it still requires developing effective recovery and separation methods in order to utilize REMs and RVMs in ash and leachate. Recovery of valuable elements (Y and Nd) from various and extensive ash sources (8.21 million tons/year in 2013) can provide the existing power plants with additional profit; therefore, it can significantly improve economics of the power plants.
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