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Gao Zhen, Wu Changyong, Zhou Jihong, Xu Min, Sun Qingliang, Zhou Yuexi. Characteristics of soluble microbial products in effluent of a petrochemical wastewater treatment plant[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 946-950.
Citation: Gao Zhen, Wu Changyong, Zhou Jihong, Xu Min, Sun Qingliang, Zhou Yuexi. Characteristics of soluble microbial products in effluent of a petrochemical wastewater treatment plant[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 946-950.
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Characteristics of soluble microbial products in effluent of a petrochemical wastewater treatment plant

  • 1.

    School of Urban Construction, Hebei University of Engineering, Handan 056038, China

  • 2.

    Research Center of Water Pollution Control Technology, Chinese Research Academy of Environment Sciences, Beijing 100012, China

  • 3.

    College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China

  • Received Date: 30/03/2012
    Accepted Date: 06/03/2012
    Available Online: 18/03/2013
    Fund Project:
  • Soluble microbial products (SMP) are the mean compositions of residual COD in the effluents of biological wastewater treatment plant. In this study, ultrafiltration membranes with molecular weight cut off and XAD-8 resin were employed to identify the characteristics of the molecular weight distribution and hydrophobic/hydrophilic of SMP in the effluent of a typical petrochemical wastewater treatment plant. The results showed that the proportion of SMP in the residual COD was about 85% and the dominant composition of SMP was protein. Most of the organic matters of SMP have molecular weight lower than 1 kDa. The resin separating experiments showed that hydrophilic substance (HIS) and hydrophobic acids (HOA) were the main fractions of SMP in the effluent, accounting for 50% and 20% of the total SMP, respectively. HIS and HOA were the main substances need further removal.
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Characteristics of soluble microbial products in effluent of a petrochemical wastewater treatment plant

  • Received Date: 30/03/2012
  • Accepted Date: 06/03/2012
  • Available Online: 18/03/2013
Fund Project:

Abstract: Soluble microbial products (SMP) are the mean compositions of residual COD in the effluents of biological wastewater treatment plant. In this study, ultrafiltration membranes with molecular weight cut off and XAD-8 resin were employed to identify the characteristics of the molecular weight distribution and hydrophobic/hydrophilic of SMP in the effluent of a typical petrochemical wastewater treatment plant. The results showed that the proportion of SMP in the residual COD was about 85% and the dominant composition of SMP was protein. Most of the organic matters of SMP have molecular weight lower than 1 kDa. The resin separating experiments showed that hydrophilic substance (HIS) and hydrophobic acids (HOA) were the main fractions of SMP in the effluent, accounting for 50% and 20% of the total SMP, respectively. HIS and HOA were the main substances need further removal.

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