Reactivity of the Polyamide Membrane Monomer with Free Chlorine: Reaction Kinetics, Mechanisms, and the Role of Chloride

2019 ◽  
Vol 53 (14) ◽  
pp. 8167-8176 ◽  
Author(s):  
Kun Huang ◽  
Keith P. Reber ◽  
Michael D. Toomey ◽  
Holly Haflich ◽  
John A. Howarter ◽  
...  
Keyword(s):  
Reaction Kinetics ◽  
Free Chlorine ◽  
Chlorine Reaction ◽  
Polyamide Membrane

Reactivity of the Polyamide Membrane Monomer with Free Chlorine: Role of Bromide

2021 ◽  
Vol 55 (4) ◽  
pp. 2575-2584
Author(s):  
Kun Huang ◽  
Keith P. Reber ◽  
Michael D. Toomey ◽  
John A. Howarter ◽  
Amisha D. Shah
Keyword(s):  
Free Chlorine ◽  
Polyamide Membrane

Role of Ti and Y in the nucleation of the primary α-Al of Al7075–Ti–Y natural composites and influence of ultrasonic vibration

2021 ◽  
Vol 112 (8) ◽  
pp. 652-664
Author(s):  
Xiao-Hui Chen ◽  
Lei Liu ◽  
Jinbo Li ◽  
Fayun Zhang
Keyword(s):  
Reaction Kinetics ◽  
Grain Refinement ◽  
Ultrasonic Vibration ◽  
Nano Particles ◽  
Influencing Mechanism ◽  
Ultrasonic Time ◽  
Natural Composites ◽  
Corrosion Pits ◽  
Main Factor

Abstract Al7075–Ti–Y natural composites were prepared by using a combination of ultrasonic vibration and casting. The effects of titanium (Ti) and yttrium (Y) on the nucleation of primary α-Al were studied and the influencing mechanism of Y on the TiAl3 formation was analysed. Furthermore, a reaction kinetics model of TiAl3 under ultrasonic vibration was established. The results showed that the uniformly distributed TiAl3 and Al3Y nano-particles resulted in grain refinement. Y changed the morphology of TiAl3 and the appearance of corrosion pits was related to the fact that Y was dissolved within the TiAl3 structure to form Ti(Al,Y)3. The established model revealed that ultrasonic vibration significantly promoted the formation of TiAl3, and that ultrasonic time was the main factor affecting its growth.

Control of disinfection and halogenated disinfection byproducts by the electrochemical process

2007 ◽  
Vol 55 (12) ◽  
pp. 213-219 ◽  
Author(s):  
Y.J. Jung ◽  
B.S. Oh ◽  
J.W. Kang ◽  
M.A. Page ◽  
M.J. Phillips ◽  
...  
Keyword(s):  
Kinetic Studies ◽  
Disinfection Byproducts ◽  
Electrochemical Process ◽  
Free Chlorine ◽  
Haloacetic Acids ◽  
Oh Radicals ◽  
Inactivation Kinetic ◽  
E Coli ◽  
Electrochemical Processes

The aim of this study was to investigate some aspects of the performance of electrochemical process as an alternative disinfection strategy, while minimising DBPs, for water purification. The study of electrochemical processes has shown free chlorine to be produced, but smaller amounts of stronger oxidants, such as ozone, hydrogen peroxide and OH radicals (•OH), were also generated. The formation of mixed oxidants increased with increasing electric conductivity, but was limited at conductivities greater than 0.6 mS/cm. Using several microorganisms, such as E. coli and MS2 bacteriophage, inactivation kinetic studies were performed. With the exception of free chlorine, the role of mixed oxidants, especially OH radicals, was investigated for enhancement of the inactivation rate. Additionally, the formation and reduction of DBPs was studied by monitoring the concentration of haloacetic acids (HAAs) during the process.

Reaction kinetics and transformation of antipyrine chlorination with free chlorine

2013 ◽  
Vol 47 (8) ◽  
pp. 2830-2842 ◽  
Author(s):  
Mei-Quan Cai ◽  
Li Feng ◽  
Jin Jiang ◽  
Fei Qi ◽  
Li-Qiu Zhang
Keyword(s):  
Reaction Kinetics ◽  
Free Chlorine

Role of density fluctuations in bimolecular reaction kinetics

1978 ◽  
Vol 28 (1-2) ◽  
pp. 215-218 ◽  
Author(s):  
A.A. Ovchinnikov ◽  
Ya.B. Zeldovich
Keyword(s):  
Reaction Kinetics ◽  
Bimolecular Reaction ◽  
Density Fluctuations

scholarly journals Effects of residual disinfectants on the redox speciation of lead(ii)/(iv) minerals in drinking water distribution systems

2021 ◽  
Author(s):  
Sumant Avasarala ◽  
John Orta ◽  
Michael Schaefer ◽  
Macon Abernathy ◽  
Samantha Ying ◽  
...  
Keyword(s):  
Drinking Water ◽  
Reaction Kinetics ◽  
Distribution Systems ◽  
Water Distribution ◽  
Water Distribution Systems ◽  
Free Chlorine ◽  
Oxidative Transformation ◽  
Drinking Water Distribution Systems ◽  
Drinking Water Distribution ◽  
Free Bromine

This study investigated the reaction kinetics on the oxidative transformation of lead(ii) minerals by free chlorine (HOCl) and free bromine (HOBr) in drinking water distribution systems.

Abiotic amidine and guanidine hydrolysis of lamotrigine-N2-glucuronide and related compounds in wastewater: The role of pH and N2-substitution on reaction kinetics

2016 ◽  
Vol 100 ◽  
pp. 466-475 ◽  
Author(s):  
Bozo Zonja ◽  
Antonio Delgado ◽  
J. Luis Abad ◽  
Sandra Pérez ◽  
Damià Barceló
Keyword(s):  
Reaction Kinetics ◽  
Hydrolysis Of ◽  
Related Compounds
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