Textile Coloration and Finishing (한국염색가공학회지)

The Korean Society of Dyers and Finishers (한국염색가공학회)
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A Study on Biodegradability of Various Dyeing Auxiliaries

각종 염색조제의 생분해성에 관한 연구

  • 류원률 (영남대학교 공과대학 화학공학 및 공업화학부) ;
  • 이호경 (영남대학교 공과대학 화학공학 및 공업화학) ;
  • 이영호 (영남대학교 공과대학 화학공학 및 공업화학) ;
  • 신현철 (한국염색기술연구) ;
  • 최장승 (한국염색기술연구) ;
  • 이기풍 (한국염색기술연구) ;
  • 조무환 (영남대학교 공과대학 화학공학 및 공업화학부)
  • Published : 1998.12.01
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Abstract

For the effective operation of complex dyeing wastewater treatment plant, the biodegradability of various dyeing agents were investigated. For experiments in biodegradability, activated sludge from aeration tank of wastewater treatment plant was used. Biodegradability of dyeing agents were compared by measuring the $BOD_5/COD_{Cr}$ ratios and $BOD_5$ removal efficiency. $COD_{Cr}$. removal efficiency of dyeing agents was less than 80% , while $BOD_5$ removal efficiency was less than 60% after of days. Therefore, biodegradation by activated sludge were found very difficult. Judging from this, it is necessary to isolate strains biodegrading dyeing agents in order to operate activated sludge process safely.

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