Electron diffraction studies of the kinetics of phase changes in molecular clusters: freezing of carbon tetrachloride in supersonic flow

1991 ◽  
Vol 95 (3) ◽  
pp. 1159-1167 ◽  
Author(s):  
Lawrence S. Bartell ◽  
Theodore S. Dibble
Keyword(s):  
Carbon Tetrachloride ◽  
Supersonic Flow ◽  
Electron Diffraction ◽  
Molecular Clusters ◽  
Phase Changes ◽  
Kinetics Of

Phases and phase changes of molecular clusters generated in supersonic flow

1989 ◽  
Vol 93 (16) ◽  
pp. 6201-6205 ◽  
Author(s):  
Lawrence S. Bartell ◽  
Laszlo Harsanyi ◽  
Edward J. Valente
Keyword(s):  
Supersonic Flow ◽  
Molecular Clusters ◽  
Phase Changes

scholarly journals Kinetics of phase changes in large molecular clusters

1991 ◽  
Vol 20 (1-4) ◽  
pp. 255-257 ◽  
Author(s):  
L. S. Bartell ◽  
Th. S. Dibble
Keyword(s):  
Molecular Clusters ◽  
Phase Changes ◽  
Kinetics Of

Carbon tetrachloride biodegradation in a fixed-biofilm reactor and its kinetic study

1998 ◽  
Vol 38 (8-9) ◽  
pp. 155-162 ◽  
Author(s):  
G. Jin ◽  
A. J. Englande
Keyword(s):  
Carbon Tetrachloride ◽  
Continuous Flow ◽  
Model Comparison ◽  
Biofilm Reactor ◽  
Pseudomonas Cepacia ◽  
Initial Concentration ◽  
Biphasic Model ◽  
Providencia Stuartii ◽  
Kinetics Of ◽  
Fixed Biofilm

Kinetics of Carbon Tetrachloride biodegradation are evaluated in a continuous-flow fixed-biofilm reactor with controlled initial redox potential. The column was seeded with a mixed culture of indigenous microorganisms Pseudomonas cepacia and Providencia stuartii. The fixed biofilm reactor exhibited 98%–99.9% biodegradation of CT introduced into the reactor at an initial concentration of about 200 μg/l for retention times of 1 to 4 days respectively. Four models were employed to evaluate the kinetics of CT biodegradation. These included: Eckenfelder (1989), Arvin (1991), Bouwer and McCarty (1985) and a biphasic model. Comparison of calculated results with observed results between these models agreed very closely to each other (0.968 < R2 < 0.999). Predicted performance was best described by the model of Bouwer and McCarty (1985). However, the biphasic and Eckenfelder models provided excellent correlations and were much simpler to apply. The biphasic model yielded very good correlations of the data for all detention times evaluated; whereas, the Eckenfelder model effected comparable results only at the longer retention times studied.

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