Enhanced removal of phenol from biorefinery wastewater treatment using enzymatic and Fenton process

Ely, Cyntia; Souza, Diego Hoefling; Fernandes, Mylena; Trevisan, Viviane; Skoronski, Éverton

doi:10.1080/09593330.2020.1713220

Cited by 11 publications

(2 citation statements)

References 23 publications

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“…It suggests that cavitation has an enormous collaborative effect on removing organic pollutants (phenol) by the WGTLs in the adsorption process. The breakdown of the cavitation bubbles could cause a sizeable mechanical pressure on the surface of the adsorbent, as described by previous reports [ 54 , 55 ].…”

Section: Resultsmentioning

confidence: 60%

Promising Low-Cost Adsorbent from Waste Green Tea Leaves for Phenol Removal in Aqueous Solution

Ali

Siddique

Chen

et al. 2022

IJERPH

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Phenol is the most common organic pollutant in many industrial wastewaters that may pose a health risk to humans due to its widespread application as industrial ingredients and additives. In this study, waste green tea leaves (WGTLs) were modified through chemical activation/carbonization and used as an adsorbent in the presence of ultrasound (cavitation) to eliminate phenol in the aqueous solution. Different treatments, such as cavitation, adsorption, and sono-adsorption were investigated to remove the phenol. The scanning electron microscope (SEM) morphology of the adsorbent revealed that the structure of WGTLs was porous before phenol was adsorbed. A Fourier Transform Infrared (FTIR) analysis showed an open chain of carboxylic acids after the sono-adsorption process. The results revealed that the sono-adsorption process is more efficient with enhanced removal percentages than individual processes. A maximum phenol removal of 92% was obtained using the sono-adsorption process under an optimal set of operating parameters, such as pH 3.5, 25 mg L−1 phenol concentration, 800 mg L−1 adsorbent dosage, 60 min time interval, 30 ± 2 °C temperature, and 80 W cavitation power. Removal of chemical oxygen demand (COD) and total organic carbon (TOC) reached 85% and 53%. The Freundlich isotherm model with a larger correlation coefficient (R2, 0.972) was better fitted for nonlinear regression than the Langmuir model, and the sono-adsorption process confirmed the pseudo-second-order reaction kinetics. The findings indicated that WGTLs in the presence of a cavitation effect prove to be a promising candidate for reducing phenol from the aqueous environment.

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Section: Resultsmentioning

confidence: 60%

Promising Low-Cost Adsorbent from Waste Green Tea Leaves for Phenol Removal in Aqueous Solution

Ali

Siddique

Chen

et al. 2022

IJERPH

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“…[11] Physical, chemical, and biological treatment techniques are used to remove phenol from wastewater. Membrane filtration, flotation, coagulation-flocculation, adsorption, precipitation, and ion exchange [12,13,14,15,16,17] are used as physico-chemical treatment techniques, while aerobic and anaerobic processes, bacterial and fungal biosorption [18,19] are used as biological treatment techniques. However, there are many limitations in these processes, such as high cost and low efficiency, and these processes cannot entirely remove phenolic compounds from wastewater.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Photocatalytic Degradation of Phenol by Zinc Oxide Using Response Surface Methodology

Seloglu,

Orhan,

Selen

et al. 2024

ChemistryOpen

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In this study, the photocatalytic degradation of phenol, which is commonly found in industrial wastewater at high rates, was investigated using a zinc oxide (ZnO) catalyst. It is thought that our findings will contribute to the removal of phenol in industrial wastewater. The experimental study was conducted in a batch‐type air‐fed cylindrical photocatalytic reactor, and a central composite design (CCD) was chosen and analyzed using response surface methodology (RSM). The study aimed to explore the effects of initial phenol concentration, catalyst concentration, airflow rate, and degradation time on the photocatalytic degradation of phenol and the removal efficiency of total organic carbon (TOC). A quadratic regression model was developed to establish the relationship between phenol degradation, TOC removal effectiveness, and the four factors mentioned. The validity of the model was assessed through an analysis of variance (ANOVA). A good agreement was observed between the model results and the experimental data. As a result of the experiments carried out under optimized conditions, the degradation percentage of phenol was found to be 77.15 %, and the degradation percentage of TOC was 59.87 %. Additionally, pseudo‐first‐order kinetics were used in the photocatalytic degradation of phenol.

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Applying bottom ash as an alternative Fenton catalyst for effective removal of phenol from aqueous environment

Hollanda,

de Souza,

Foletto

et al. 2023

Environ Sci Pollut Res

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Enhanced removal of phenol from biorefinery wastewater treatment using enzymatic and Fenton process

Cited by 11 publications

References 23 publications

Promising Low-Cost Adsorbent from Waste Green Tea Leaves for Phenol Removal in Aqueous Solution

Promising Low-Cost Adsorbent from Waste Green Tea Leaves for Phenol Removal in Aqueous Solution

Analysis of Photocatalytic Degradation of Phenol by Zinc Oxide Using Response Surface Methodology

Applying bottom ash as an alternative Fenton catalyst for effective removal of phenol from aqueous environment

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