Textile Coloration and Finishing (한국염색가공학회지)

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

Chemical Precipitation Treatment for the Disperse Dyes Removal

분산성 염료의 제거를 위한 응집처리

  • 한명호 (경일대학교 공과대학 공업화학과) ;
  • 박종득 (경일대학교 공과대학 공업화학과) ;
  • 허만우 (경일대학교 공과대학 섬유패션학과)
  • Published : 2002.04.01
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Abstract

In order to remove the pollutants effectively in the dye wastewater by chemical precipitation process, coagulation arid flocculation test were carried out using several coagulants on various reaction conditions. It was found that the Ferrous sulfate was the most effective coagulant for the removal of disperse dye(B79), and we could get the best result lot the removal of disperse dye(B56) in the aspects of TOC removal efficiency and sludge field. When the Ferrous sulfate dosage was $800mg/\ell$, the sludge settling velocity was very fast>, and the color was effectively removed in the disperse dye(B79) solution. Although the color removal was ineffective when the Alum was used as a coagulant, the sludge field was decreased in comparison with the Ferrous sulfate or the Ferric sulfate was used in the disperse dye(B56) solution. The general color removal effect for the disperse dye(B56 and B79) solutions, the Ferric sulfate was more proper coagulant than the Alum. It was showed that TOC removal was improved 5% and over by the addition of Calcium hydroxide, and $30mg/\ell$ of sludge yield was decreased(B79). When Alum or Ferric sulfate was used as a coagulant, pH condition for most effective color removal was 5 in B56 solution. In case of Ferrous sulfate as a coagulant, most effective pH condition for color removal was 9. When Ferric sulfate or Ferrous sulfate was used as a coagulant, pH condition for most effective color removal was 9 in B79 solution.

Keywords

References

  1. M. H. Han, et al., Treatment of Dye Processing Wastewater by Chemical Pre-cipitation, J. of the Korean Soc. of Dyers and Finishers, 9, 6, 26-32(1997)
  2. 安武重雄, 排水處理におけるオヅンの利用, 用水と廢水, 34, 4, 31(1992)
  3. S. S. Kim et al., A Study on the Decomposition Properties of Disperse Dye Ozone Oxidation Treatment and the Optimum Treatment Condition( I ), J. of the Korean Soc. of Dyers and Finishers, 8, 1, 43-55(1996)
  4. Y. K. Park et al., Treatment of Dyeing Complex Wastewater by Polyurethane Flu-idized Bed Biofilm Process, J. of Korean Soc. of Env. Eng., 18, 3, 327-332(1996)
  5. E. J. Cheong, 'Advanced Treatment of Dyeing Wastewater by Membrane Process', Graduate School of Yeungnam University, M. S. Thesis(1995)
  6. 藤藤敦久, '水處理-その新しい展開', 技報堂 出版(1992)
  7. 宗宮 功, 'ォゾソ利用水處理技術', 公害對策技術同友會, p.254-26O(1989)
  8. C. P. L. Grandy Jr. and H. C. Lim, 'Biological Wastewater Treatment', Marcel Dekker, p.509-688 (1980)
  9. J. S. Shin, 'Desizing Wastewater Treatment Discharged from Textile Mills by Ultrafil-tration Membrane Separation', Graduate School of Yeungnam University, M. S. Thesis(1993)
  10. I. S. Jeong, Technology Development and Patent Trend about Coagulants for Water Treatment, J. Env. Hi-Tec., 5, 121-128 (1998)
  11. S. H. Sin and D. S. Kim, 'Proc. Korean. Soc. of Env. Eng. Conf. Spring of 1996, p.30l (2001)
  12. W. Stumm and J. J. Morgan, 'Aquatic Chemistry', 2nd ed., John wiley & Sons(1981)
  13. M. H. Han and J. S. Lee, Velocity Gradient and Mixing Time on Coagulation for Drinking Water Treatment, Research Re-view of Kyungil University, 13, 251-259 (1996)
  14. D. I. Kim, 'Pilot Plant Scale Treatment of Dye Industrial Complex Wastewater Containing Polyester Reduction Waste by The Oxygen Activated Sludge-Coagulation Process', Graduate School of Yeungnam University, M. S. Thesis(1992)
  15. Y. Y. Yang and H. J. Kang, Color Removal of Dyes Using Electro-beam Accelerator, J. Env. Hi-Tec., 10, 2(1997)
  16. Editoiial Dept. of Donghwa Pub., 'Examination of Water and Wastewater', Donghwa Pub., p.129, 173(1996)
  17. J. R. Shin, 'Chemicals for Water Treatment', Donghwa Pub., p.22-33(1992)
  18. J. W. Kwak, Characteristics of Inorganic Coagulants and The Application for Water Treatment, J. Env. Hi-Tec., 5, 90(1998)
  19. D. G. Ra and D. G. Her, Colour- Removal of Landfill Leachate by Coagulation, J. of Korean Soc. of Env. Eng., 20. 5. 701-710(1998)
  20. 遊佐 美津雄, '凝集理論の限界', 浮選. p.123(1973)