Quantum Chemistry and Computational Kinetics of the Reaction between OH Radicals and Formaldehyde Adsorbed on Small Silica Aerosol Models

2008 ◽  
Vol 112 (12) ◽  
pp. 4590-4600 ◽  
Author(s):  
Cristina Iuga ◽  
Annik Vivier-Bunge ◽  
Alfonso Hernández-Laguna ◽  
C. Ignacio Sainz-Díaz
Keyword(s):  
Quantum Chemistry ◽  
Oh Radicals ◽  
Kinetics Of

Mechanism and Kinetics of the Reaction of OH Radicals with Glyoxal and Methylglyoxal: A Quantum Chemistry+CVT/SCT Approach

ChemPhysChem ◽  
2004 ◽  
Vol 5 (9) ◽  
pp. 1379-1388 ◽  
Author(s):  
Annia Galano ◽  
J. Raúl Alvarez-Idaboy ◽  
Ma. Esther Ruiz-Santoyo ◽  
Annik Vivier-Bunge
Keyword(s):  
Quantum Chemistry ◽  
Oh Radicals ◽  
Mechanism And Kinetics ◽  
Kinetics Of

scholarly journals Kinetics of Microcystin-LR Removal in a Real Lake Water by UV/H2O2 Treatment and Analysis of Specific Energy Consumption

Toxins ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 810
Author(s):  
Sabrina Sorlini ◽  
Carlo Collivignarelli ◽  
Marco Carnevale Miino ◽  
Francesca Maria Caccamo ◽  
Maria Cristina Collivignarelli
Keyword(s):  
Energy Consumption ◽  
Specific Energy ◽  
Lake Water ◽  
Harmful Effect ◽  
Specific Energy Consumption ◽  
World Health ◽  
Oh Radicals ◽  
H2o2 Treatment ◽  
Initial Concentration ◽  
Kinetics Of

The hepatotoxin microcystin-LR (MC-LR) represents one of the most toxic cyanotoxins for human health. Considering its harmful effect, the World Health Organization recommended a limit in drinking water (DW) of 1 µg L−1. Due to the ineffectiveness of conventional treatments present in DW treatment plants against MC-LR, advanced oxidation processes (AOPs) are gaining interest due to the high redox potential of the OH• radicals. In this work UV/H2O2 was applied to a real lake water to remove MC-LR. The kinetics of the UV/H2O2 were compared with those of UV and H2O2 showing the following result: UV/H2O2 > UV > H2O2. Within the range of H2O2 tested (0–0.9 mM), the results showed that H2O2 concentration and the removal kinetics followed an increasing quadratic relation. By increasing the initial concentration of H2O2, the consumption of oxidant also increased but, in terms of MC-LR degraded for H2O2 dosed, the removal efficiency decreased. As the initial MC-LR initial concentration increased, the removal kinetics increased up to a limit concentration (80 µg L−1) in which the presence of high amounts of the toxin slowed down the process. Operating with UV fluence lower than 950 mJ cm−2, UV alone minimized the specific energy consumption required. UV/H2O2 (0.3 mM) and UV/H2O2 (0.9 mM) were the most advantageous combination when operating with UV fluence of 950–1400 mJ cm−2 and higher than 1400 mJ cm−2, respectively.

scholarly journals Laboratory study on OH-initiated degradation kinetics of dehydroabietic acid

2015 ◽  
Vol 17 (16) ◽  
pp. 10953-10962 ◽  
Author(s):  
Chengyue Lai ◽  
Yongchun Liu ◽  
Jinzhu Ma ◽  
Qingxin Ma ◽  
Hong He
Keyword(s):  
Laboratory Study ◽  
Environmental Conditions ◽  
Degradation Kinetics ◽  
Dehydroabietic Acid ◽  
Oh Radicals ◽  
Kinetics Of

The degradation kinetics of dehydroabietic acid by OH radicals were investigated under various environmental conditions.

Thermochemistry and kinetics of acetonylperoxy radical isomerisation and decomposition: a quantum chemistry and CVT/SCT approach

2008 ◽  
Vol 10 (47) ◽  
pp. 7139 ◽  
Author(s):  
Ahmed M. El-Nahas ◽  
John M. Simmie ◽  
Maria V. Navarro ◽  
Joseph W. Bozzelli ◽  
Gráinne Black ◽  
...  
Keyword(s):  
Quantum Chemistry ◽  
Kinetics Of

Atmospheric chemistry of trans-CF3CHCHCl: Kinetics of the gas-phase reactions with Cl atoms, OH radicals, and O3

2008 ◽  
Vol 199 (1) ◽  
pp. 92-97 ◽  
Author(s):  
M.P. Sulbaek Andersen ◽  
E.J.K. Nilsson ◽  
O.J. Nielsen ◽  
M.S. Johnson ◽  
M.D. Hurley ◽  
...  
Keyword(s):  
Gas Phase ◽  
Atmospheric Chemistry ◽  
Oh Radicals ◽  
Gas Phase Reactions ◽  
Kinetics Of ◽  
Cl Atoms

Kinetics of the reactions of O3and OH radicals with a series of dialkenes and trialkenes at 294 ± 2 K

1984 ◽  
Vol 16 (8) ◽  
pp. 967-976 ◽  
Author(s):  
Roger Atkinson ◽  
Sara M. Aschmann ◽  
William P. L. Carter
Keyword(s):  
Oh Radicals ◽  
Kinetics Of

An experimental and theoretical study of the kinetics of the reaction between 3-hydroxy-3-methyl-2-butanone and OH radicals

RSC Advances ◽  
2015 ◽  
Vol 5 (34) ◽  
pp. 26559-26568 ◽  
Author(s):  
Angappan Mano Priya ◽  
Gisèle El Dib ◽  
Lakshmipathi Senthilkumar ◽  
Chantal Sleiman ◽  
Alexandre Tomas ◽  
...  
Keyword(s):  
Rate Constants ◽  
Theoretical Study ◽  
Oh Radicals ◽  
First Time ◽  
Kinetics Of

Absolute experimental and theoretical rate constants are determined for the first time for the reaction of 3-hydroxy-3-methyl-2-butanone with OH as a function of temperature. The atmospheric implications are discussed.

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