The investigation of thermodynamic parameters of kinetic reaction between o-phenylenediamine and gold (III)

Altun, Özlen; Akbaş, Halide

doi:10.1016/j.jct.2007.03.019

Cited by 7 publications

(4 citation statements)

References 27 publications

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“…At the VSS concentration of 30 g⋅L −1 , five different aeration rates (10,15,20,25, and 30 L⋅h −1 ) were used at stirring rate of 185 rpm with running for 18 days. When the aeration rate was 10 L⋅h −1 , the average temperature rising rate in the reactor is 2.07 ∘ C⋅day −1 , the system temperature reaches 61 ∘ C with the removal rate of VSS reaching 52%.…”

Section: The Effect Of Aeration Rate On Vss Biodegradationmentioning

confidence: 99%

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VSS Degradation Kinetics in High Temperature Aerobic Digestion and Microbial Community Characteristics

Shi

Ren

2018

Journal of Chemistry

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Piggery wastewater is a kind of high concentration organic wastewater with high concentration of pollutants, large amount of emissions, and serious environmental pollution and is difficult to deal with. Piggery wastewater was treated with autothermal hyperthermia aerobic digestion process (ATAD) and its biodegradation kinetics was studied. The ATAD system was automatically heated up and the reaction temperature rose from ambient temperature of 20°C to a maximum temperature of 64°C. Based on Arrhenius formula, the empirical model is obtained through dimensional analysis. The removal of volatile suspended solids (VSS) was correlated with the initial VSS concentration, water inlet temperature, aeration rate, and agitation rate in the model. In the empirical model, the apparent activation energy was 2.827 kJ·mol−1. The exponentials for the initial VSS concentration, aeration rate, and stirring rate were 1.0587, −0.0976, and −0.1618, respectively. The correlation coefficient of the exponential factor was 0.9971. The VSS removal efficiency predicted by the model was validated with an actual test, showing a maximum relative deviation of 8.82%. Sludge systems show a lower diversity of microbial populations and Bacillus occupies a very important position in the reactor. The data obtained will be useful for optimizing piggery wastewater treatment process. The new model provided good theoretical guidance with good practicality.

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Section: The Effect Of Aeration Rate On Vss Biodegradationmentioning

confidence: 99%

“…Arrhenius-Type Empirical Kinetic Model. The empirical kinetic model is an Arrhenius-type equation [19][20][21]. By dimensional analysis [22][23][24], the equation can be written as follows:…”

Section: Empirical Kinetic Model For Vss Biodegradationmentioning

confidence: 99%

VSS Degradation Kinetics in High Temperature Aerobic Digestion and Microbial Community Characteristics

Shi

Ren

2018

Journal of Chemistry

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“…Thus, the best solution to meet this aim is simply to follow the disappearance of the starting material or appearance of a product as a function of time. This can be done by measuring the rate of a reaction at various concentrations of reactants and catalysts in order to determine the kinetic order with respect to a particular reactant and to establish an overall function which represents the rate law of a behavior reaction with a known rate constant [33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52] . Kinetics studies suggest many practical techniques to accomplish these measurements.…”

mentioning

confidence: 99%

Kinetic Aspects of Tetrahydrobenzo[b]pyran Formation in the Presence of Agar as a Green Catalyst: A Mechanistic Investigation

Shahraki¹,

Habibi‐Khorassani²,

Pourpanah³

2016

Biosci., Biotech. Res. Asia

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The kinetic and mechanism of the reaction between benzaldehyde, malononitrile and dimedone has been studied in the presence agar as a highly efficient homogenous catalyst in a mixture of (water/ethanol, 2:1). Based on the experiment data, the overall order of reaction for the formation of tetrahydrobenzo[b]pyran followed second-order kinetics and under pseudo-order conditions the partial orders with respect to 1, 2 and 3 were one, one and zero, respectively. From the temperature, concentration and solvent studies, the activation energy (E a ) and the related kinetic parameters (Δ Δ Δ Δ ΔG ‡ , Δ Δ Δ Δ ΔS ‡ and Δ Δ Δ Δ ΔH ‡ ) are calculated. The first step of the proposed mechanism is recognized as a rate-determining step (k 1 ) and this is proved by the steady state approximation.

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“…Therefore, kinetic and mechanistic studies of such compounds via catalyst has attracted our interest. Many kinetic investigations of different reactions have previously been reported using spectrophotometry techniques [28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45] .…”

mentioning

confidence: 99%

Insights into the Reaction Mechanism of the Tetrahydrobenzo [b] pyran by means of Kinetic Studies in the Presence of Fructose as a Green Catalyst

Ghalandarzehi¹,

Habibi‐Khorassani²,

Shahraki³

2016

Orient. J. Chem

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Extensive kinetic studies were performed to investigate the mechanism of the reaction between 4-methoxybenzaldehyde 1, malononitrile 2, and dimedone 3 in the presence of fructose as a catalyst in a mixture of water and ethanol. The synthesis reaction of tetrahydrobenzo[b]pyran followed second-order kinetics. The partial orders with respect to 1, 2 were one and one, respectively. Temperature effect has been investigated on the reaction rate, and relevant parameters have been determined with two linearized forms of Eyring equation. The proposed mechanism theoretical rate law were compatible with the experimental data. From the temperature, concentration and solvent studies, the activation energy (E a = 70.05 ± 1.39 kJmol

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The investigation of thermodynamic parameters of kinetic reaction between o-phenylenediamine and gold (III)

Cited by 7 publications

References 27 publications

VSS Degradation Kinetics in High Temperature Aerobic Digestion and Microbial Community Characteristics

VSS Degradation Kinetics in High Temperature Aerobic Digestion and Microbial Community Characteristics

Kinetic Aspects of Tetrahydrobenzo[b]pyran Formation in the Presence of Agar as a Green Catalyst: A Mechanistic Investigation

Insights into the Reaction Mechanism of the Tetrahydrobenzo [b] pyran by means of Kinetic Studies in the Presence of Fructose as a Green Catalyst

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