직/편성물 염색

Dyeing of cotton fabric with reactive dyes using hydrogen peroxide renovated spent dye bath water

  • 출판일1998.11
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 284
Very good reproducibility of shades was achieved in the first stage reuse of reactive dye baths except for the yellow color. Second and third stage reproducibility of shade depths were achieved with red and brown (mixture and all three) colors, respectively. Up to 95％ decolorization of spent dye bath was acheived at peroxide concentration of 0.48 g/l in presence of 50 ppm ferrous ions at pH 2.9-3.2 and temperature 140℉. The treatment lowered the COD of the dye bath at each stage of decolorization, and the COD attains a terminal value with subsequent recycles. The Fenton's regent technique allows substantial savings in terms of chemicals and energy costs.
이전글 다음글 목록