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제품안전(KC)
- 연구개발
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기술정보
직/편성물 염색
ENVIRONMENTAL ASPECTS OF TEXTILE PROCESSING. PART 3. REMOVAL OF HYDROLYZED DYE FROM WASTEWATER
- 출판일1991.03
- 저자
- 서지사항
- 등록일 2016.11.02
- 조회수 305
Dyes in wastewater can be decolorized and hydrolyzed by precipitation and coagulation with cationic agents followed by filtration. These agents include amide-amine and amide-formaldehyde condensates and a methylene crosslinked condensate of a cynamide derivative. This method was used for reactive dyes that varied in substantivity. Optimum concentration for each agent was established. It was easier to decolorize mixtures of the dyes than to decolorize individual dyes. Temperature and pH were also important factors. The toxicity of these cationic agents has to be evaluated to avoid further contamination of the wastewater. 5 refs.
