한국물환경학회지 (Journal of Korean Society on Water Environment)

  • 제22권4호
  • /
  • Pages.658-665
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  • 2006
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  • 2289-0971(pISSN)
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  • 2289-098X(eISSN)
한국물환경학회 (Korean Society on Water Environment)
권호 표지

은의 전해채취 및 전해정련을 통한 사진폐액의 처리에 관한 연구

Studies on the Treatment of Photographic Wastewater by Electrowinning and Electrorefining of Silver

  • 정원주 (이화여자대학교 환경학과) ;
  • 김동수 (이화여자대학교 환경학과) ;
  • 이화영 (한국과학기술연구원 나노센터)
  • Chung, Won-Ju (Department of Environmental Science and Engineering, Ewha Womans University) ;
  • Kim, Dong-Su (Department of Environmental Science and Engineering, Ewha Womans University) ;
  • Lee, Hwa-Young (Eco-Nano Research Center, KIST)
  • 투고 : 2006.03.20
  • 심사 : 2006.04.28
  • 발행 : 2006.07.30
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초록

The removal characteristics of silver ion from waste photographic solution have been investigated by recovering silver electrochemically. Cyclic voltammetry for synthetic and actual wastewater which containing silver ion was investigated to understand its electrochemical behavior. For both synthetic and actual wastewater, the recovery of silver according to the electrowinning time was observed to be increased as the applied potential was raised. In addition, the applicable potential for the electrowinning of silver was found to be lower for synthetic wastewater compared with actual wastewater. As the temperature was increased, more silver was recovered for both wastewater, which indicated the electrowinning reaction was endothermic. The electrowinned silver was refined electrochemically to increase its purity and the variation of the purity of silver was examined according to the electrorefining potential.

키워드

참고문헌

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