5‐(Chloromethyl)furfural production from glucose: A pioneer kinetic model development exploring the mechanism

2021 ◽  
Author(s):  
Churchil A. Antonyraj ◽  
Amal J. Chennattussery ◽  
Ajit Haridas
Keyword(s):  
Kinetic Model ◽  
Model Development ◽  
Furfural Production

Kinetic Model Development for Accelerated Stability Studies

2016 ◽  
Vol 18 (4) ◽  
pp. 1158-1176 ◽  
Author(s):  
Don Clancy ◽  
Neil Hodnett ◽  
Rachel Orr ◽  
Martin Owen ◽  
John Peterson
Keyword(s):  
Kinetic Model ◽  
Model Development ◽  
Stability Studies ◽  
Accelerated Stability

scholarly journals Monochloramine dissipation in storm sewer systems: field testing and model development

2018 ◽  
Vol 78 (11) ◽  
pp. 2279-2287 ◽  
Author(s):  
Qianyi Zhang ◽  
Mohamed Gaafar ◽  
Evan G. R. Davies ◽  
James R. Bolton ◽  
Yang Liu
Keyword(s):  
Kinetic Model ◽  
Distribution Systems ◽  
Tap Water ◽  
Water Discharge ◽  
Model Development ◽  
Field Testing ◽  
Sampling Point ◽  
Sewer Systems ◽  
Dissipation Test ◽  
Storm Sewer

Abstract Monochloramine (NH2Cl), as the dominant disinfectant in drinking water chloramination, can provide long-term disinfection in distribution systems. However, NH2Cl can also be discharged into storm sewer systems and cause stormwater contamination through outdoor tap water uses. In storm sewer systems, NH2Cl dissipation can occur by three pathways: (i) auto-decomposition, (ii) chemical reaction with stormwater components, and (iii) biological dissipation. In this research, a field NH2Cl dissipation test was conducted with continuous tap water discharge into a storm sewer. The results showed a fast decrease of NH2Cl concentration from the discharge point to the sampling point at the beginning of the discharge period, while the rate of decrease decreased as time passed. Based on the various pathways involved in NH2Cl decay and the field testing results, a kinetic model was developed. To describe the variation of the NH2Cl dissipation rates during the field testing, a time coefficient fT was introduced, and the relationship between fT and time was determined. After calibration through the fT coefficient, the kinetic model described the field NH2Cl dissipation process well. The model developed in this research can assist in the regulation of tap water outdoor discharge and contribute to the protection of the aquatic environment.

Kinetic Model with Effect of Water Content for Enzyme-Catalyzed Citronellyl Laurate Esterification Process

2013 ◽  
Vol 284-287 ◽  
pp. 423-428 ◽  
Author(s):  
Siti Asyura Zulkeflee ◽  
Suhairi Abd Sata ◽  
Norashid Aziz
Keyword(s):  
Experimental Data ◽  
Kinetic Model ◽  
Water Content ◽  
Model Development ◽  
Initial Water Content ◽  
Initial Water ◽  
Effect Of Water ◽  
Proposed Model ◽  
Optimal Value ◽  
Influence Of Water

A kinetic model with effect of water content for enzyme-catalyzed citronellyl laurate was developed. These models incorporate the combined influences of established kinetics model with the function model on the effect of initial water content with kinetic parameters. The model development was carried out by performing a linear and nonlinear regression based on the behavior of the kinetic parameter profiles and validated with experimental data. Using the developed models, the influence of water content towards the enzyme-catalyzed initial rate of reaction was theoretically explained. It has been shown that the proposed model have good agreement between experimental data and intends to capture the effect of water content towards the conversion of ester. With this model, the optimal value of initial water content for this process could be estimated.

Processes and Modelling of Nitrification Denitrification Biological Excess Phosphorus Removal Systems – A Review

1992 ◽  
Vol 25 (6) ◽  
pp. 59-82 ◽  
Author(s):  
M. C. Wentzel ◽  
G. A. Ekama ◽  
G. v. R. Marais
Keyword(s):  
Kinetic Model ◽  
Activated Sludge ◽  
Phosphorus Removal ◽  
Model Development ◽  
Constant Flow ◽  
Cyclic Flow ◽  
Aerobic Nitrification ◽  
Kinetics Of ◽  
Load Conditions ◽  
Activated Sludge Systems

This paper reviews developments in modelling the kinetics of activated sludge systems: Completely aerobic nitrification, anoxic/aerobic nitrification denitrification (ND), and anaerobic/anoxic/aerobic nitrification denitrification biological excess phosphorus removal (NDBEPR) systems. The paper highlights the progress in developing a general NDBEPR activated sludge kinetic model – development of polyP organism enhanced cultures, their kinetics, simplification of the kinetics for enhanced cultures under constant flow and load conditions, extension of the simplified model to mixed culture NDBEPR systems under constant flow and load conditions, integration of the polyP organism enhanced culture kinetics with the ND kinetics to give a general NDBEPR kinetic model for cyclic flow and load which incorporates the increased specific denitrification rates observed in NDBEPR systems compared to ND systems. Areas of research that require attention to complete the development of the general NDBEPR kinetic model are identified – denitrification by polyP organisms, calibration and verification of the model for cyclic flow and load, etc.

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