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Use of surfactants and aliphatic hydrocarbons to accelerate degradation of phenanthrene

Anwendung von oberflächenaktiven Substanzen und aliphatischen Kohlenstoffen um Phenanthren-Abbau zu beschleunigen
 

Deutsche Gesellschaft für Chemisches Apparatewesen, Chemische Technik und Biotechnologie e.V. -DECHEMA-, Frankfurt/Main:
Meeting of Biotechnologists '90
Weinheim: VCH Verlagsgesellschaft, 1990 (Dechema Biotechnology Conferences 4)
ISBN: 3-527-27997-0
pp.585-587 : Abb.
Deutsche Gesellschaft für Chemisches Apparatewesen (Jahrestagung) <1990, Frankfurt/Main>
English
Conference Paper
Fraunhofer IGB ()
Mikroorganismus; oberflächenaktiver Stoff; organisches System; Phenanthren; Phenanthrenabbau; wässriges System

Abstract
The present study deals with the limiting factors of the microbial degradation of phenanthrene. In aqueous systems as well as in aqueous/organic systems the velocity of substrate transfer appears to limit the growth of the bacteria. The velocity of solubilization directly depends on the area of diffusion. Thus, in aqueous systems the degradation of phenanthrene can be accelerated with decreasing particle size of the substrate. The rate of degradation can be increased again by solubilization of phenanthrene in an organic solvent. A further acceleration of the degradation of phenanthrene and the corresponding growth of the microorganisms can be achieved by the increase of the area of substrate diffusion due by the use of nonionic surfactants.

: http://publica.fraunhofer.de/documents/PX-38023.html