Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Reuse of Weaving Wastewater by Membrane Bioreactor Equipped with a Hollow-fiber MF Membrane

중공사 정밀여과 MBR공정을 이용한 제직폐수의 재이용

  • Jung, Yong-Jun (Dept. of Environmental Engineering, Kyungpook National University) ;
  • Bae, Jong-Hong (Dept. of Environmental Engineering, Kyungpook National University) ;
  • Min, Kyung-Sok (Dept. of Environmental Engineering, Kyungpook National University)
  • Received : 2004.04.20
  • Accepted : 2004.06.01
  • Published : 2004.07.30
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Abstract

Submerged membrane bio-reactor equipped with a hollow fiber microfiltration was applied to reuse weaving wastewater of water jet loom, where two parameters such as the concentration of MLSS and the flux were controlled. While the flux at the concentration of MLSS around 900mg/L was constantly kept over 0.4m/d and 0.8m/d in a short time, the stable flux at around 300mg/L of MLSS was shown at the 8 days later. Regardless of MLSS and flux, BOD, CODcr and Turbidity of the permeate were 1~2mg/L, 7~10mg/L and below 1 NTU, which were 85~90%, 87~90% and 98% of removal efficiency, respectively. The stable operation without fouling was achieved because the contents of ECP were smaller than those of common MBR processes and the composition(saccharide/protein) was kept constantly. In this study, 0.5~1.0m/d of flux and 400~900mg/L of MLSS were considered as the most recommendable operating condition for the reuse of weaving wastewater.

Keywords

References

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