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Ozonation of Reactive Dyes and Control of THM Formation Potentials Carrier Dyeing of Polyester Fabrics in Alkaline Dyebath Using Microwave

  • Textile Coloration and Finishing
  • Abbr : Text. Color. and Finish.
  • 2004, 16(2), pp.34-40
  • Publisher : The Korean Society Of Dyers And Finishers
  • Research Area : Engineering > Fiber Engineering > Dyeing Engineering

Han, Myung-Ho 1 김범수 1 Manwoo Huh 1

1경일대학교

Accredited

ABSTRACT

This study was conducted to remove the reactive dyes by the Ozone demand flask method which are one of the main pollutants in dye wastewater. Ozone oxidation of three kinds of the reactive dyes was examined to investigate the reactivity of dyes with ozone, Trihalomethane formation potentials(THMFPs), competition reaction and ozone utilization on various conditions for single- and multi-solute dye solution. Concentration of dyes was decreased continuously with increasing ozone dosage in the single-solute dye solutions. THMFPs per unit dye concentration were gradually increased with increase of ozone dosage. By the result of THMFPs change with reaction time, THMFPs were rapidly decreased within 1 minute in single-solute dye solutions. They were increased after 1 minute of reaction time, and then they were consistently decreased again after longer reaction time. Competition quotient values were calculated to investigate the preferential oxidation of individual dyes in multi-solute dye solutions. Competition quotients(CQi) and values of the overall utilization efficiency, o3, were increased at 40mg/l of ozone dosage in multi-solute dye solutions.

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