http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 김문평(Moon Pyoung Kim) (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
-
-
-
한종대,김문평 昌原大學校 基礎科學硏究所 1997 基礎科學硏究所論文集 Vol.9 No.-
To investigate the potential of coal fly ash for landfill cover material and adsorbent of heavy metals in waste water, the use of coal fly ash for removal of heavy metals such as Pb, Cd, Cu and Zn from aqueous solution was investigated using batch adsorption and subsequent desorption. And the effect of organic compounds such as C(glucose). PO₄-P and NH₃-N on the removal efficiency of heavy metals was also investigated. The removal capacity and removal efficiency of fly ash for heavy metals were observed to be greater than those of the soil mostly used as landfill cover material. The removal capacity increased in the presence of organic compounds. Coal fly ash showed the preference for heavy metals in sequence of Cd>Cu>Zn>Pb, and showed an excellent removal capacity for Cd and Cu of 10 ㎎ metal per g of coal fly ash. The PO₄-P of 5 ㎎ per g of coal fly ash was removed, but the removal capacity did not increased with increased concentration. The NH₃-N and C(glucose) were hardly removed by coal fly ash. The dominant possible mechanisms are precipitation on the fly ash surface, precipitation in the fly ash pore and adsorption. The use a mixture of coal fly ash and soil as landfill cover material will enhance leachate stabilization and refuse decomposition by the alkalic property of coal fly ash. And the use of coal fly ash in cover material will provide the source of inexpensive cover material, and an outlet for coal fly ash. the coal fly ash also showed the potential as adsorbent of heavy metals in waste water.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
