Textile Coloration and Finishing (한국염색가공학회지)

The Korean Society of Dyers and Finishers (한국염색가공학회)
권호 표지

Optimal Conditions for Chemical Coagulation of Dyeing-Complex Wastewater

종합염색폐수의 최적 화학응집조건

  • 류원률 (영남대학교 공과대학 응용화학공학부) ;
  • 이호경 (영남대학교 공과대학 응용화학공학부) ;
  • 남범식 (영남대학교 공과대학 응용화학공학부) ;
  • 이영호 (영남대학교 공과대학 응용화학공학부) ;
  • 최장승 (한국염색기술연구소) ;
  • 조무환 (영남대학교 공과대학 응용화학공학부)
  • Published : 2000.04.01
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Abstract

For the effective treatment of dyeing-complex wastewater, the most effective chemical coagulation method was studied. For the chemical coagulation of dyeing-complex wastewater, polyferric sulfate, $4Al_2(SO_4)_3$, PAC, ferrous sulfate, ferric sulfate, $FeCl_2$ and lime were used. It was investigated that polyferric sulfate was the most efficient coagulant. The optimal conditions and results for polyferric sulfate include the followings. When initial $COD_{Mn}$ concentration was 600mg/L, the optimal initial pH, dosage of coagulant, dosage of lime and PAA for $COD_{Mn}$ removal efficiency were 5, 1,200mg/L, 500mg/L and lmg/L, respectively. The optimal dosage of polyferric sulfate was increased proportionally to the influent $COD_{Mn}$ concentration.

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