Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Composition of Cotton Textile Dyeing Process Wastewater and its Treatment Characteristics by Ionized Gas

면섬유염색폐수의 공정별 폐수성상과 이온화가스에 의한 처리특성

  • Lim, Gyeong-Eun (Department of Environmental Engineering, Chonbuk National University) ;
  • Chung, Paul-gene (Department of Environmental Engineering, Chonbuk National University) ;
  • Kwon, Ji-Young (Department of Environmental Engineering, Chonbuk National University) ;
  • Lee, Eun-Ju (Department of Civil & Environmental Engineering, Kongju National University)
  • 임경은 (전북대학교 환경공학과) ;
  • 정팔진 (전북대학교 환경공학과) ;
  • 권지영 (전북대학교 환경공학과) ;
  • 이은주 (공주대학교 건설환경공학부 방재연구센타)
  • Received : 2006.08.22
  • Accepted : 2007.05.01
  • Published : 2007.05.30
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Abstract

Three types dyeing wastewater (dark, medium, light color) discharged from cotton textile dyeing with reactive dye was collected at each step of process. Each process dying wastewater was analyzed and treated by ionized gas. The analysis focused on $COD_{Cr}$, SS and color. Bleaching & scouring process wastewater has the highest $COD_{Cr}$ value in the three type dyeing wastewater. SS shows the highest value at dyeing process wastewater in dark and medium color but light color has at finishing process wastewater. The result of process wastewater treatment by ionized gas was that the ionized gas was effective in $COD_{Cr}$ removing of bleaching & scouring process and finishing process wastewater but was not good at dyeing process wastewater. From that result it is estimated that the ionized gas could not work in opening the aromatic ring and react only in aliphatic component of the molecule. Because the surfactants contained in bleaching & scouring process and finishing process wastewater have only one aromatic ring in its molecular structure, in contrast with the reactive dye compounds consist of aromatic rings great part of its molecular structure. The color almost removed in 1.5 hrs reaction time but $COD_{Cr}$ removal effiency was only 30.7% through 3hrs in 1500 mL of total dyeing wastewater treated by 10 L/min ionized gas.

Keywords

Acknowledgement

Supported by : 전북대학교

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