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  • (toxic) volatile organic compounds (VOC)  (2)
  • Ab initio calculation
  • Anodic stripping voltammetry
  • 1995-1999  (2)
  • 1995  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Membrane-attached biofilms for VOC wastewater treatment. II: Effect of biofilm thickness on performance (1995)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 47 (1995), S. 90-95 
    Details
    ISSN: 0006-3592
    Keywords: membrane-attached biofilms ; extractive membrane bioreactor (EMB) ; (toxic) volatile organic compounds (VOC) ; aerobic biodegradation of dichloroethane ; optimal biofilm thickness ; Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: This article reports a study of the performance of membrane-attached biofilms grown in a single tube extractive membrane bioreactor (STEMS) used for the treatment of a synthetic wastewater containing a toxic VOC (1,2-dichloroethane [DCE]). Mass balances show that complete mineralization of DCE was achieved, and that the biofilms were effective in reducing air stripping to negligible levels. Experimental results are presented showing the evolution over time of biofilm thickness and its influence on the flux of DCE across the membrane. It has been found that a trade-off exists between the positive influence of biofilms in reducing air-stripping of DCE, and the negative influence of biofilms in reducing DCE flux across the membrane. These considerations lead to an optimal biofilm thickness in the region of 200 to 400 μm being recommended for this system. © 1995 John Wiley & Sons, Inc.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260470111
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Membrane-attached biofilms for VOC wastewater treatment I: Novel in situ biofilm thickness measurement technique (1995)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 47 (1995), S. 82-89 
    Details
    ISSN: 0006-3592
    Keywords: novel biofilm thickness measurement technique ; membrane attached biofilms ; extractive membrane bioreactor ; (toxic) volatile organic compounds (VOC) ; aerobic biodegradation of dichloroethane ; Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: This article reports a novel nondisruptive technique for measuring the thicknesses of membrane-attached biofilms in situ, using a single tube extractive membrane bioreactor (STEMB). The biodegradation of a toxic volatile organic compound (VOC) (1,2-dichloroethane [DCE]) by Xanthobacter autotrophicus GJ10 has been used as a model system to develop the technique. The results give information on the biomass-silicone rubber attachment phenomena, and on the development over time of biofilms growing on the silicone membrane, without disrupting operation. Experimental results are presented showing the evolution over time of biofilm thickness, and also the density of biofilms for four experimental runs. The hydrodynamic conditions on the biomedium side of the membrane were found to influence the initial attachment phenomena and subsequent biofilm growth. © 1995 John Wiley & Sons, Inc.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260470110
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    Paper (German National Licenses)
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