한국물환경학회지 (Journal of Korean Society on Water Environment)

  • 제18권3호
  • /
  • Pages.245-251
  • /
  • 2002
  • /
  • 2289-0971(pISSN)
  • /
  • 2289-098X(eISSN)
한국물환경학회 (Korean Society on Water Environment)
권호 표지

전기화학적인 방법에 의한 반응성 염료폐수의 처리

Treatment of reactive dyes wastewater by electrochemical method

  • 유재정 (국립환경연구원 낙동강수질검사소) ;
  • 전성환 (국립환경연구원 낙동강수질검사소) ;
  • 박정민 (국립환경연구원 낙동강수질검사소) ;
  • 정제호 (국립환경연구원 낙동강수질검사소) ;
  • 박상정 (국립환경연구원 낙동강수질검사소) ;
  • 민경석 (경북대학교 환경공학과)
  • Yu, Jae-Jeong (Nakdong River Water Quality Research Laboratory, National Institute of Environmental Research) ;
  • Jeon, Seong-Hwan (Nakdong River Water Quality Research Laboratory, National Institute of Environmental Research) ;
  • Park, Jeong-Min (Nakdong River Water Quality Research Laboratory, National Institute of Environmental Research) ;
  • Jeong, Jae-Ho (Nakdong River Water Quality Research Laboratory, National Institute of Environmental Research) ;
  • Park, Sang-Jeong (Nakdong River Water Quality Research Laboratory, National Institute of Environmental Research) ;
  • Min, Kyung-Sok (Dept. of Environmental Engineering, Kyungpook National University)
  • 발행 : 2002.09.30
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초록

Reactive dyes waste water, a toxic and refractory pollutant, was treated by an electrochemical method using $Ti/IrO_2$ as anode and Stainless Steel 316 as cathode. In this technique, sodium chloride as an electrolyte was added. A number of experiments were run in a batch system. Artificial samples (reactive blue 19, red 195, yellow 145) were used. Operation parameters, such as supporting electrolyte concentration, current density, pH and sample concentration have been investigated for their influences on COD and color removal efficiencies during electrolysis. After 5 and 90 minites of eletrolysis, color was reduced by 51.5% and 98.9% respectively. Under the condition of current density $10A/dm^2$, NaCl concentration 12mg/l and pH 3, 62.9% of $COD_{Cr}$ was removed after electrolysis for 90 minites. The optimum condition of color removal and COD reduction in this work was found to be the following : pH 3, sodium chloride concentration 20g/l, current density $10A/dm^2$. As a result, we confirmed to be effective to color removal and reduction of refractory organic material.

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