직/편성물 염색

Targeting Reactive Dyebaths for Reuse.

  • 출판일1997.09
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 287
A high salt content may permit recycling of reactive dyebaths. The value of the salt recovered may be more than $30 per 1,000 gallons of water treated. Estimates of the value of water savings, the avoided wastewater treatment costs, and heat energy returned to the dyeing process represent an additional $4.85 per 1,000 gallons of water recycled. Another reason to targe treactive dyeing for dyebath reuse is that reactive dye fixation is inherently poor. As much as 50 percent of applied reactive dye becomes part of the aqueous effluent. The most common technologies for treating water for recycling are chemical oxidation, precipitation, and membrane separation. A variation of Fenton's Reagent uses hydrogen peroxide activated by ferrous ions at high temperatures. 5 refs.
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