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      Bacteria-immobilized electrospun fibrous polymeric webs for hexavalent chromium remediation in water

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      Author(s)
      Sarioglu, O.F.
      Celebioglu A.
      Tekinay, T.
      Uyar, Tamer
      Date
      2016
      Source Title
      International Journal of Environmental Science and Technology
      Print ISSN
      1735-1472
      Electronic ISSN
      1735-2630
      Publisher
      Springer Berlin Heidelberg
      Volume
      13
      Issue
      8
      Pages
      2057 - 2066
      Language
      English
      Type
      Article
      Item Usage Stats
      247
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      254
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      Abstract
      The development of hexavalent chromium remediating fibrous biocomposite mats through the immobilization of a hexavalent chromium reducing bacterial strain, Morganella morganiiSTB5, on the surfaces of electrospun polystyrene and polysulfone webs is described. The bacteria-immobilized biocomposite webs have shown removal yields of 93.60 and 93.79 % for 10 mg/L, 99.47 and 90.78 % for 15 mg/L and 70.41 and 68.27 % for 25 mg/L of initial hexavalent chromium within 72 h, respectively, and could be reused for at least five cycles. Storage test results indicate that the biocomposite mats can be stored without losing their bioremoval capacities. Scanning electron microscopy images of the biocomposite webs demonstrate that biofilms of M. morganii STB5 adhere strongly to the fibrous polymeric surfaces and are retained after repeated cycles of use. Overall, the results suggest that reusable bacteria-immobilized fibrous biocomposite webs might be applicable for continuous hexavalent chromium remediation in water systems.
      Keywords
      Bioremoval
      Electrospinning
      Polystyrene
      Polysulfone
      Bacteria
      Composite materials
      Electrospinning
      Polymers
      Polystyrenes
      Polysulfones
      Remediation
      Scanning electron microscopy
      Bacterial strains
      Bio-composites
      Bioremoval
      Hexavalent chromium
      Polymeric surfaces
      Repeated cycle
      Scanning electron microscopy image
      Storage tests
      Chromium
      Bacterium
      Biofilm
      Bioremediation
      Chromium
      Immobilization
      Life cycle analysis
      Pollutant removal
      Polymer
      Scanning electron microscopy
      Water pollution
      Bacteria (microorganisms)
      Morganella morganii
      Permalink
      http://hdl.handle.net/11693/36884
      Published Version (Please cite this version)
      http://dx.doi.org/10.1007/s13762-016-1033-0
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      • Institute of Materials Science and Nanotechnology (UNAM) 2258
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