Using response surface methodology (RSM) for optimizing turbidity removal by electrocoagulation/electro-flotation in an internal loop airlift reactor

Kambuyi, Toussaint Ntambwe; Eddaqaq, F; Driouich, Anas; Bejjany, Bouchra; Lekhlif, Brahim; Mellouk, Hamid; Digua, Khalid; Dani, Adil

doi:10.2166/ws.2019.129

Cited by 18 publications

(4 citation statements)

References 11 publications

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“…These results are supported by the findings of Kambuyl et al. 29. The applied voltage is a key parameter that controls the number of aluminum coagulants and the hydrogen gas bubble generation which leads to the destabilization and removal of agglomerated pollutants.…”

Section: Resultssupporting

confidence: 85%

“…In the case of RE, the time and voltage have a significantly positive impact than the individual effects of these parameters, and in the case of energy consumption, the pH and voltage together contribute significantly [15]. These results are supported by the findings of Kambuyl et al [29]. The applied voltage is a key parameter that controls the number of aluminum coagulants and the hydrogen gas bubble generation which leads to the destabilization and removal of agglomerated pollutants.…”

Section: Discussionmentioning

confidence: 52%

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Electrocoagulation Technique for Cephalothin Sodium Removal with Effective Sludge Management

et al. 2021

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The electrocoagulation technique is applied for the treatment of hazardous cephalothin sodium antibiotic wastewater. The interaction effects of the various parameters on the maximization of removal efficiency and minimization of energy consumption are evaluated through multivariable optimization. The disposal of sludge is effectively performed by soil stabilization. Scanning electron microscopy analysis of soil fused with sludge shows an ordered arrangement with reduced void space. The improvement of soil properties is confirmed by the change in soil expansiveness from low to moderate region and by an increase in compressive strength.

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Section: Resultssupporting

confidence: 85%

Section: Discussionmentioning

confidence: 52%

Electrocoagulation Technique for Cephalothin Sodium Removal with Effective Sludge Management

et al. 2021

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“…It should be noted that when the flow rate of the solution exceeds the optimal value, the dye removal efficiency decreases due to the upsurge of the system turbulence and desorption of the dye pollutants from the surface of the clots. As shown in Figure 7, as the current density enhances, the removal efficiency increases due to the rise in the electrochemical reactions performed on the surface of the electrodes, resulting in an increase in the production of the iron hydroxide clots (Ntambwe Kambuyi et al 2019). The results show that the lengthening of the electrolysis time makes the removal efficiency ascend.…”

Section: Effects Of Operating Parametersmentioning

confidence: 92%

Optimization of the Sunset Yellow dye removal by electrocoagulation using a response surface method

Moghaddam

Seyyedi

2021

Water Science and Technology

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In recent years, among the various treatment methods, the electrocoagulation process has been used for the treatment of effluents containing various dye pollutants. Sunset yellow (S.Y.) azo dye is one of the common food colors widely used in various food industries. This study investigated the removal of the dye S.Y. from aqueous media by the electrocoagulation method in an electrochemical reactor using concentric iron electrodes. The experiments were designed by the Response Surface Method (RSM) with the help of the Minitab software in such a way that the effect of various process-influencing parameters, such as current density, electrolysis time, electrolyte concentration, pH of the solution, and the effluent flow rate, on the desired pollutant removal efficiency was investigated. According to the results of the process optimization by RSM, the optimal conditions for the process were obtained as follows: pH of 10, current density of 2.65 mA/cm2, electrolysis time of 42.32 min, initial dye concentration of 20 mg/L, and effluent flow rate of 2.5 L/min. Under the above optimal conditions, the efficiency of dye removal was more than 99%.

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“…Montgomery [17] cites the advantages of using the DoE tool, such as reducing cost and product development time and improving process performance. The DoE tool has been widely used in various branches of science and industry: Guerra et al [18] used the Central Composite Design to optimize acceptance criteria for instrument calibration in oil and natural gas measurement systems; Sengel-Turk et al [19] applied the DoE tool to evaluate new techniques for cancer treatment; Sibiya et al [20] used DoE concepts to optimize water treatment; a central composite design was used for optimizing turbidity removal in a reactor system [21]; a Box-Behnken design was used to analyze the effects of pollutant interactions in pollutants oilfield [22]; a Box-Behnken design was used to identify optimum conditions in drilling and completion operations [23]; and a 3 2 factorial design was used for assessing the relevance of changing in test method for kinematic viscosity of opaque oils [24].…”

Section: General Design Of Experiments and Response Surface Methodologymentioning

confidence: 99%

Evaluation of the Influence of Water Content in Oil on the Metrological Performance of Oil Flow Measurement Systems

Silva,

Oliveira

2024

Energies

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According to current Brazilian regulations, if the volumes of oil produced used as a reference for the payment of government shares and third parties contain a water content greater than 2% v/v, these volumes must be arbitrarily increased between 1.44% and 10.89% due exclusively to water content, which has caused operational problems for oil companies such as differences between volumes produced and volumes sold, and additional payments from government shares and third parties. This study aimed to evaluate the metrological performance of oil measurement systems with ultrasonic, Coriolis and positive displacement flow meters when subjected to varied water content, fluid temperature and flow rate conditions using the Design of Experiments and the Response Surface Methodology. The analysis of variance showed that the models presented good fits for the ultrasonic meter (coefficient of determination R2 of 97.96%, p-value of 0.001, and a standard deviation of 5.89 × 10−5); Coriolis meter (R2 of 90.91%, p-value of 0.037, and a standard deviation of 5.88 × 10−5); and positive displacement meter (R2 of 99.07%, p-value of 0.000, and a standard deviation of 4.85 × 10−5). The results of the experiments carried out indicate that the contribution of each parameter analyzed to the metrological performance of the measurement system varies depending on the measurement technology used by the flow meter. However, the fluid temperature proved to be a relevant parameter common to all flow measurement technologies evaluated. All measuring technologies evaluated were influenced by water content in the range of 0% to 10% v/v, with the measurement error being less than 0.2% when compared to a standard positive displacement type meter in almost all experimental conditions. The Coriolis-type flow meter was the one that presented the smallest error among the measuring technologies evaluated.

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Using response surface methodology (RSM) for optimizing turbidity removal by electrocoagulation/electro-flotation in an internal loop airlift reactor

Cited by 18 publications

References 11 publications

Electrocoagulation Technique for Cephalothin Sodium Removal with Effective Sludge Management

Electrocoagulation Technique for Cephalothin Sodium Removal with Effective Sludge Management

Optimization of the Sunset Yellow dye removal by electrocoagulation using a response surface method

Evaluation of the Influence of Water Content in Oil on the Metrological Performance of Oil Flow Measurement Systems

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