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Oily wastewater treatment by porous ceramics mediums with surface lipophilic modification

  • Yunhua Zhang (张运华)
  • Fuxing Gan
  • Meng Li
  • Jing Li
  • Shiqian Li
  • Yunpeng Gao
Article

Abstract

Aiming at the treatment of difficult-to-handle oily wastewater, the ceramics filter mediums made from the iron and steel plant sludge were adopted to surface lipophilic modification so as to remove oil efficiently. The hydrolysis technique by FTIR and conductivity test indicated that under acid conditions hydrogen silicon oil did not hydrolyze but release hydrogen by chemical reaction under alkaline conditions. The results of the experiments including contact angle measurement, FTIR analysis, and SEM analysis illustrate that a layer of lipophile coating indeed exists evenly on the surface of filter mediums after modification. Furthermore, the hydrogen-containing silicone oil was combined through dehydration of Si-H bond with the -OH on the surface of ceramic filter medium.

Key words

lipophilic modification porous ceramics filter mediums oily wastewater 

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Copyright information

© Wuhan University of Technology and Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Yunhua Zhang (张运华)
    • 1
    • 2
  • Fuxing Gan
    • 1
  • Meng Li
    • 3
  • Jing Li
    • 1
  • Shiqian Li
    • 1
  • Yunpeng Gao
    • 2
  1. 1.School of Resource and Environmental ScienceWuhan UniversityWuhanChina
  2. 2.Wuhan Iron and Steel (Group) Corp.WuhanChina
  3. 3.School of Civil Engineering and ArchitectureWuhan University of TechnologyWuhanChina

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