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The Degumming and Sericin Recovery of the Silk fabric Using the Electrolytic Water(2)

  • Textile Coloration and Finishing
  • Abbr : Text. Color. and Finish.
  • 2004, 16(4), pp.10-18
  • Publisher : The Korean Society Of Dyers And Finishers
  • Research Area : Engineering > Fiber Engineering > Dyeing Engineering

Kieseo Bae 1 Taesang Lee 1 노덕길 2 홍영기 3

1충남대학교
2청운대학교
3건양대학교

Accredited

ABSTRACT

In this work, Aqueous sericin solution was prepared by degumming process with electrolytic reduction water.Then, the microfiltration and ultrafiltration systems were applied to the concentration of aqueous sericin solution. The objective of this study was to select the optimum operating condition among the different pressure. The permeate flux and rejection ratio were observed with time, pressure, flow rate and concentration. and, the wastewater and permeated water quality values such as pH, BOD, COD, and NH levels were measured.In order to see the influence of electrolytic reduction water, the flux of pure water and electrolytic reduction water by PVDF22(MF) and PS100(UF) membrane was measured. In microfiltration system, the relative flux reduction decreased rapidly to 0.02 in the 30min, as the concentration polarization and gel layer formation were increased. and then the sericin concentration rejection ratio was 40%.In ultrafiltration system, the permeate flux decreased with time and concentration, and increased with the operating pressure and flow rate. Optimal condition in PS100 membrane system for sericin concentration was operating pressure 1.464kgf/cm2, operating flow rate 7 /min at 40 . At that time, sericin concentration rejection ratio was 83% respectably. The sericin solution was concentrated from 0.1wt% solution to 0.2 wt % solution during about 2 hrs by the UF filteration membrane system.

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