Bioremediation of wastewater containing RDX

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Description

A free suspension model of the biodegradation of RDX by a consortium has been developed as a part of an overall model that will describe the waste treatment for explosives in a continuous process. The free suspension model uses experimentally determined parameters to predict the concentrations of the bacteria cells, the substrate (yeast extract), RDX, and the mononitroso intermediate. The model correctly predicts the experimentally observed trends; however, the values predicted for the cell concentrations are consistently lower than those observed experimentally. This can be resolved by better characterizing the growth parameters of the consortium. The degradation of RDX was ... continued below

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17 p.

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Ogden, K. L. October 1, 1994.

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Description

A free suspension model of the biodegradation of RDX by a consortium has been developed as a part of an overall model that will describe the waste treatment for explosives in a continuous process. The free suspension model uses experimentally determined parameters to predict the concentrations of the bacteria cells, the substrate (yeast extract), RDX, and the mononitroso intermediate. The model correctly predicts the experimentally observed trends; however, the values predicted for the cell concentrations are consistently lower than those observed experimentally. This can be resolved by better characterizing the growth parameters of the consortium. The degradation of RDX was found to be first order in RDX concentration and assumed to be first order in cell concentration, X. i.e. d(RDX)/dt = k{sub 1}(X)(RDX) The degradation rate constant, k{sub 1}, was found to be 0.043 L/(g cells hr). Similarly, the degradation rate constant of the mononitroso intermediate was found to be 0.066 L/(g cells hr).

Physical Description

17 p.

Notes

OSTI as DE96014729

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  • Other Information: PBD: Oct 1994

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  • Other: DE96014729
  • Report No.: LA-SUB--96-113
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/369676 | External Link
  • Office of Scientific & Technical Information Report Number: 369676
  • Archival Resource Key: ark:/67531/metadc688229

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Creation Date

  • October 1, 1994

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • July 28, 2016, 7:07 p.m.

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Ogden, K. L. Bioremediation of wastewater containing RDX, report, October 1, 1994; New Mexico. (digital.library.unt.edu/ark:/67531/metadc688229/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.