Regeneration of diclofenac-spent granular activated carbon by sulphate radical based methods: multi-response optimisation of adsorptive capacity and operating cost

Durna, Elif; Erkişi, Ezgi; Genç, Nevim

doi:10.1080/03067319.2020.1787399

Cited by 3 publications

(3 citation statements)

References 36 publications

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“…Instead of trying all combinations of experiments in the full factorial structure, it provides both time and cost savings with partial factorial combinations by using orthogonal arrays and determines the factor levels that give the best performance characteristic (Miller & Wu, 1996). The Taguchi method has a wide range of applications, such as pharmaceutical development in the healthcare industry (Ghanbari et al, 2021), industrial wastewater management and treatment (Herbert & Kumar, 2021), optimization of adsorption capacity and operating costs of micro pollutants (Durna et al, 2020), optimization of energy consumption for room air conditioning (Sah et al, 2021), optimization of genetic algorithm parameters (Candan & Yazgan, 2015), improvement of education quality (Ree et al, 2014) and the evaluation of information security technology (Jeong & Yoon, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…The Taguchi method has a wide range of applications, such as pharmaceutical development in the healthcare industry (Ghanbari et al, 2021), industrial wastewater management and treatment (Herbert & Kumar, 2021), optimization of adsorption capacity and operating costs of micro pollutants (Durna et al, 2020), optimization of energy consumption for room air conditioning (Sah et al, 2021), optimization of genetic algorithm parameters (Candan & Yazgan, 2015), improvement of education quality (Ree et al, 2014) and the evaluation of information security technology (Jeong & Yoon, 2020).…”

Section: Introductionmentioning

confidence: 99%

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Optimization of process parameters for remediation performance on mass removal of tetrachloroethylene source zones by using Taguchi design of experiment and artificial neural network

Şahin

Akyol

Kasap

2022

Water & Environment J

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This study tested the remediation performance of various conditions for pool‐dominated tetrachloroethylene resided in the soil at three different levels of type of flushing agent, flushing agent concentration and flushing rate. The experimental data obtained according to the Taguchi orthogonal array L9 were analysed using the Minitab 17 program. Results of the experimental design analysis indicated that the most effective factor is the flushing agent type, followed by flushing agent concentration and flushing rate, respectively. All the parameters used in the system have a significant effect on the experimental results, and the Taguchi method can explain 97.94% of the experimental data. As a result of the ANN analysis, the R2 values for training, testing and validation were calculated as 0.99942, 0.99795 and 0.99964, respectively. This situation shows the importance of experimental design and selection of appropriate conditions, which is very important for rapid and cost‐effective remediation of contaminated sites.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimization of process parameters for remediation performance on mass removal of tetrachloroethylene source zones by using Taguchi design of experiment and artificial neural network

Şahin

Akyol

Kasap

2022

Water & Environment J

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“…To minimise both GAC drawbacks, regenerated GAC is considered as a replacement when the fresh material is depleted [17]. Different regeneration methods have been investigated but, in all cases, the initial GAC's properties changed, reducing its efficiency.…”

Section: Introductionmentioning

confidence: 99%

Combination of Photo-Fenton and Granular Activated Carbon for the Removal of Microcontaminants from Municipal Wastewater via an Acidic Dye

Núñez-Tafalla,

Salmerón,

Venditti

et al. 2024

Sustainability

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Combining photo-Fenton and granular activated carbon (GAC) is an alternative to increase the feasibility of using photo-Fenton in full scale. This work is a preliminary study of its viability at natural pH. Both technologies were applied separately and compared with their combination, GAC filtration instead of batch mode, to achieve an approach close to full scale. The target compound considered in this investigation was indigo carmine as a hydroxyl radicals’ probe. The results show that 80% removal of the target compound could be achieved when 20 min of the photo-Fenton treatment time was applied with the optimal dosing of the reagents (5 mg L−1 of iron and 40 mg L−1 of H2O2) working at natural conditions and using ethylenediamine-N,N-disuccinic acid as a chelating agent. Two GAC types, fresh GAC and regenerated, were evaluated on Rapid Small-Scale Columns showing similar breakthroughs and close capacity to adsorb the target compound per gram of GAC. Combining the technologies, with photo-Fenton as the first step and GAC as the second, was performed with 5 min of photo-Fenton treatment time. The 80% removal was maintained during 340 and 170 bed volumes for fresh and regenerated GAC, respectively. Aiming to achieve the maximum reduction of irradiation, 75% of the energy consumption was saved compared to the standalone photo-Fenton process, and the GAC life was extended to a maximum of 7 times.

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The preference of the most appropriate radical-based regeneration process for spent activated carbon by the PROMETHEE approach

Genç

Durna

Kacıra

2021

Environ Sci Pollut Res

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In this study, regeneration of spent granular activated carbon (GAC) with reactive dye by hydroxyl and sulfate radical based advanced oxidation processes (Microwave (MW) +Persulfate (PS)), (Fe(II)+ PS), and (O 3 + H 2 O 2 ) were evaluated. The adsorption of the dye to the GAC surface was characterized by chemisorption and Langmuir isotherm. Regeneration processes have been optimized by the Response Surface Methodology to determine the operating conditions that will provide the highest adsorptive capacity. The optimum conditions of (MW + PS), (Fe (II) + PS), and (O 3 + H 2 O 2 ) processes were (process PS anion of 45.52 g/L, pH of 11.4, MW power of 126 W, duration of 14.56 min), ( Fe (II) of 3.58 g/L, PS anion of 73.5 g/L, duration of 59.8 min, pH of 10.9) and (H 2 O 2 of 2.8 mole/L, ozone dose of 98%, duration of 32.8 min, pH of 5.3), respectively. For (MW + PS), (Fe (II) + PS), and (O 3 + H 2 O 2 ) processes, the adsorptive capacity under optimum conditions were found as 4.36, 8.89 and 8.12 mg dye / g GAC respectively. For (Fe (II) + PS) and (O 3 + H 2 O 2 ) processes these values are approximately equal to the adsorptive capacity of raw GAC (8.01 mg dye / g GAC). The predicted values of the adsorption capacities by the obtained models were in good agreement with the actual experimental results.PROMETHEE approach was used in the preference of the appropriate regeneration process. The adsorptive capacity of regenerated GAC, operating cost of the regeneration process, change in the adsorptive capacity during the regeneration cycle and carbon mass loss criteria were taken into account. The order of preference of regeneration processes was determined as (Fe (II) + PS)> (MW + PS)> (O 3 + H 2 O 2 ) considering all criteria.

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Regeneration of diclofenac-spent granular activated carbon by sulphate radical based methods: multi-response optimisation of adsorptive capacity and operating cost

Cited by 3 publications

References 36 publications

Optimization of process parameters for remediation performance on mass removal of tetrachloroethylene source zones by using Taguchi design of experiment and artificial neural network

Optimization of process parameters for remediation performance on mass removal of tetrachloroethylene source zones by using Taguchi design of experiment and artificial neural network

Combination of Photo-Fenton and Granular Activated Carbon for the Removal of Microcontaminants from Municipal Wastewater via an Acidic Dye

The preference of the most appropriate radical-based regeneration process for spent activated carbon by the PROMETHEE approach

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