Pilot-Scale Demonstration of Caustic Soda Recovery from Textile Mercerization Wastewater using Nanofiltration Membrane

NF 분리막에 의한 머서화폐수에서의 가성소다 회수에 관한 연구

  • 손은종 (한국생산기술연구원 섬유기술연구팀) ;
  • 김진우 (한양대학교 섬유공학과)
  • Published : 1999.03.01

Abstract

The recovery of caustic soda from textile mercerization wastewater by means of nanofiltration has been investigated in pilot-scale with SelRO MPT-34 membrane. With a brief summary of previously reported lab-scale results concerning membrane performance as well as the proper pretreatment and cleaning methods, the importance of operating temperature is emphasized in this study because it is found to play a crucial role in governing flux. The productivity of the given membrane system is directly determined by flus. It increases with increase in temperature and decrease in caustic soda concentration of feed solution. It is essential to raise the temperature of feed solution to at least 40℃ to maintain permissible flux. From informations obtained by field visits to Banwol and Bisan textile industrial complexes and Alchemie's successful MF system in India, installation of NF membrane system at an environmental company rather than a textile company is finally suggested as the best method for its industrial application in Korea. Since economic benefit and a payback period are significantly dependent on the NaOH concentration of mercerization wastewater, cooperation of textile companies in collecting the higest caustic soda solution with lower volume is needed.

Keywords

References

  1. Dyeing and Chemical Technology of Textile(Sixth Ed.) E. R. Trotman
  2. Private Communication 이진정
  3. Text. Ind. A. F. Barry;R. Breslau;A. J. Toompas
  4. The 9th International Wool Textile Research Conference S. N. Gaeta;D. D'Oria;U. Fedele
  5. Research Report by Cotton Incorporated Use of Membrane Filtration for Water Recycling in Fiber Reactive Dyeing D. L. Woerner;L. T. Farias;W. D. Hunter
  6. AATCC Symposium, Textile Technology/Ecology Interface C. W. Aurich
  7. Sixth Seminar on Membrane Filtration Technology F. Leonard
  8. Private Communication 정재관
  9. Private Communication 이동하
  10. Private Communication 임태빈
  11. Filtration & Separation no.1;2 K. Treffry-Goatley;J. Gilron
  12. NF 분리막을 이용한 염색폐수중 NaOH 회수 및 재사용기술개발 최은경;손은종
  13. Textile Chemist & Colorist, Submitted E. J. Son;E. K. Choe;J. W. Kim
  14. Private Communication 조명환
  15. 수처리공학 신성의;김재건(편저)
  16. Graver Separations Instruction Material, Alkaline Cleaner Recovery
  17. Private Communication 임재호
  18. Private Communication 송형범
  19. Private Communication 조병동
  20. Technical Data Membrane Products Kiryat Weizmann Ltd.
  21. Standard Method for the Examination of Water and Wastewater(18th Ed.) A. E. Greenberg;L. S. Clesceri;A. D. Eaton