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Study on the Characteristics of Refractory Wastewater by Membrane Bioreactor

ZHANG Feng-jun1,ZHAO Zhi-qing1,2,ZHOU Xiu-qing3,SU Ke3,ZHOU Hai-lin1,YU Guang-ju4   

  1. 1.College of Evironment and Resources, Jilin University , Changchun 130026,China;2.Chemical Engineering Department,Quzhou College, Quzhou 324000,China;3.The Center of Test and Science Experiment,Jilin University,Changchun 130026,China;4.Station of Environmental Protection,Langfang 065000,China
  • Received:2005-01-12 Revised:1900-01-01 Online:2005-11-26 Published:2005-11-26
  • Contact: ZHANG Feng-jun

Abstract: Under the similar operational conditions, a comparison between membrane bioreactor (MBR) and biocontact oxidation method was carried out. MBR demonstrated a more excellent effluent quality than that of biocontact oxidation. In the MBR effluent, the average removing rate of CODcr was 88.41%, higher 30% than that of biocontact oxidation;the removing rate of colority was 85.27% on average, higher nearly 30% than that of biocontact oxidation. The effluent compositions of the biocontact oxidation and the MBR were quite different. In the MBR effluent, both macromolecules with MW<10 000 and small molecules with MW>3 000 were dominant, approaching 88.36%. In the biocontact oxidation effluent, however, macromolecules with MW>10 000 were the major components, occuping with 72.04%, and molecules with 3 000

Key words: MBR, biocontact oxidation method, refractory wastewater, molecule weight

CLC Number: 

  • X132
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