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Kalorimetrische Untersuchungen zum mikrobiellen Abbau schwerlöslicher Schadstoffe am Beispiel von Naphthalin

  • Biochemistry
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Abstract

The bacterial degradation of naphthalene and other PAH in liquid media by pure cultures was investigated by an isothermic flow-calorimeter. Anabolic and catabolic processes were found to be separated distinctly. The phase of exponential heat production was developed only weakly. This was attributed to the low solubility and the dependence of the dissolving rate of substrate as the rate determining step on cristal surface and diffusion.

Methodical problems based on the local separation of the fermenter and the measuring cell. Because of the prevented gas exchange in the flow tubes and the enrichment of carbon dioxide metabolic activity of the microorganisms was lowered for times. The differences between the heat production in the fermenter and the flow tubes were reduced by developing a mathematical model.

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Abbreviations

Abb.:

Abbildung

C10H8 :

Naphthalin

[C10H8]0 :

Anfangsgehalt an Naphthalin

HPLC:

Hochleistungsflüssigchromatographie

n :

Anzahl der Versuche

OD 550nm :

Optische Dichte bei 550 nm

P :

Wärmeflu\

PAK:

Polyzyklische Aromatische Kohlenwasserstoffe

P exp :

Wärmeflu\ in der Phase exponentieller Wärmeproduktion

P max :

maximaler Wärmeflu\

Q exp :

Wärmeproduktion in der Phase exponentieller Wärmeproduktion

r 2 :

Korrelationskoeffizient

t exp :

Dauer der Phase exponentieller Wärmeproduktion

Tab.:

Tabelle

σ 2y :

Standardabweichung der Regression

Literatur

  1. I. Lamprecht, B. Schaarschmidt und J. Siemens, Thermochim. Acta, 94 (1985) 447.

    Google Scholar 

  2. R. Hölzel, C. Motzkus und I. Lamprecht, Thermochim. Acta, 239 (1994) 17.

    Article  Google Scholar 

  3. K. Fiebich, W. Thumm und A. Kettrup, Thermochim. Acta, 251 (1995) 29.

    Article  Google Scholar 

  4. K. Fiebich, Dissertation, TU München 1995.

  5. Jandel Scientific, AISN Software, Manual for Peakfit 3.0 (1991).

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Authors and Affiliations

  1. Institut für ökologische Chemie, GSF-Forschungszentrum für Umwelt und Gesundheit GmbH, Postfach 1129, 85758, Oberschlei\heim, Deutschland

    K. Fiebich & A. Kettrup

Authors
  1. K. Fiebich
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  2. A. Kettrup
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Fiebich, K., Kettrup, A. Kalorimetrische Untersuchungen zum mikrobiellen Abbau schwerlöslicher Schadstoffe am Beispiel von Naphthalin. Journal of Thermal Analysis 47, 493–502 (1996). https://doi.org/10.1007/BF01983991

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  • DOI: https://doi.org/10.1007/BF01983991

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