직/편성물 염색

Decolorization of dyehouse waste water by ionpair extraction.

  • 출판일1996.08
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 279
Ion-pair extraction with long-chain aliphatic amines in an acid medium is shown to be an effective process for the treatment of effluents, containing anionic substances. In addition to acid, direct and metal-complex dyes, the technique permits almost quantitative removal of reactive dyes. By adding an alkali, the amines can be recovered and reused. With the exception of the reactive dyes, it is also possible to recycle the dyes. The method can be applied to practically any concentration range. Besides almost complete decolorizing of the effluent, there is considerable reduction in AOX and heavymetal complex levels.
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