한국물환경학회지 (Journal of Korean Society on Water Environment)

  • 제25권5호
  • /
  • Pages.758-763
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  • 2009
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  • 2289-0971(pISSN)
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  • 2289-098X(eISSN)
한국물환경학회 (Korean Society on Water Environment)
권호 표지

염색폐수 색도 제거를 위한 영가철 기술 최적화

Optimization of Zero-valent Iron Technology for Color Removal from Real Dye Wastewater

  • 이재우 (고려대학교 환경시스템공학과) ;
  • 오영기 ((주) GS 건설기술연구소) ;
  • 차구현 (델라웨어대학교, 토목환경공학과) ;
  • 이태원 (고려대학교 정보수학과) ;
  • 고광백 (연세대학교 사회환경시스템공학부)
  • Lee, Jae Woo (Department of Environmental Engineering, Korea University) ;
  • Oh, Young Khee (GS Engineering and Construction Corporation) ;
  • Cha, Daniel K. (Department of Civil and Environmental Engineering, University of Delaware) ;
  • Lee, Taewon (Department of Information and Mathematics, Korea University) ;
  • Ko, Kwang Baik (School of Civil & Environmental Engineering, Yonsei University)
  • 투고 : 2009.06.29
  • 심사 : 2009.08.18
  • 발행 : 2009.09.30
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초록

This study presents the optimal conditions of zero-valent iron (ZVI) pretreatment for color removal from real dye wastewater. Removal of color by ZVI was strongly subject to the acidity of the wastewater buffering the pH increased after ZVI reduction. The real dye wastewater did not contain a sufficient amount of acidity and thus it was necessary to supplement acid to the dye wastewater before treatment. In continuous operation of iron column, the empty bed contact time (EBCT) and initial pH were varied to find the optimal conditions. A non-linear regression model fitted well the experimental result predicting that the optimal EBCT and pH for 80% removal efficiency was present in the range of 57~90 and 5~5.9, respectively. Color of column effluents could be further removed in the following biological oxidation step and the biodegradability of wastewater was also enhanced after iron pretreatment.

키워드

과제정보

연구 과제 주관 기관 : GS 건설

참고문헌

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