Thermal Oxidation of Silicon in Dry Oxygen: Accurate Determination of the Kinetic Rate Constants

1985 ◽  
Vol 132 (7) ◽  
pp. 1745-1753 ◽  
Author(s):  
Hisham Z. Massoud ◽  
James D. Plummer ◽  
Eugene A. Irene
Keyword(s):  
Thermal Oxidation ◽  
Rate Constants ◽  
Accurate Determination ◽  
Kinetic Rate ◽  
Kinetic Rate Constants

Interfacial catalysis by phospholipase A2: determination of the interfacial kinetic rate constants

Biochemistry ◽  
1991 ◽  
Vol 30 (29) ◽  
pp. 7283-7297 ◽  
Author(s):  
Otto G. Berg ◽  
Bao Zhu Yu ◽  
Joe Rogers ◽  
Mahendra Kumar Jain
Keyword(s):  
Phospholipase A2 ◽  
Rate Constants ◽  
Kinetic Rate ◽  
Kinetic Rate Constants ◽  
Interfacial Catalysis

scholarly journals Removal efficiencies and kinetic rate constants of xenobiotics by ozonation in tertiary treatment

2017 ◽  
Vol 75 (12) ◽  
pp. 2737-2746 ◽  
Author(s):  
Baptiste Mathon ◽  
Marina Coquery ◽  
Cécile Miege ◽  
Ywann Penru ◽  
Jean-Marc Choubert
Keyword(s):  
Rate Constants ◽  
Wastewater Treatment Plants ◽  
Batch Reactor ◽  
Chemical Oxidation ◽  
Secondary Effluent ◽  
Kinetic Rate ◽  
Kinetic Rate Constants ◽  
Removal Efficiencies ◽  
Elimination Pathway

This study gives a full overview of the chemical oxidation by ozone of selected xenobiotics usually present in effluents of conventional wastewater treatment plants. A qualitative and quantitative overview of literature data was made, and describes the ozonation efficiency and processes for the elimination of 12 xenobiotics (pesticides and pharmaceuticals). A database was built, compiling literature results of experimental ozonation assays in laboratory and real-scale conditions. Special attention was paid to selecting the data and compiling reliable results on removal efficiencies and kinetic parameters. An original study was performed in a semi-batch reactor applying ozone on secondary effluent spiked beforehand with a cocktail of 12 xenobiotics. The results of this study were compared with the literature data to evaluate the influence of the kinetic competition of xenobiotics in spiked wastewater in the determination of kinetic rate constants. These 12 xenobiotics were classified into three groups (high-/medium-/low-oxidizable) according to the ranges of their direct kinetic rate constants (kO3). A best effective ozone dose between 0.2 and 0.4 gO3 gDOC−1 is proposed for the elimination of xenobiotics. The predominant elimination pathway between direct and indirect oxidation was identified for each xenobiotic.

Sign in / Sign up

Export Citation Format

Share Document