Greener And Expedient Approach for the Wastewater Treatment by Fenton and Photo-Fenton Processes: A Review

Jain, Abhishek; Marazban, Kotwal; Khan, Saima

doi:10.18311/ajcps/2016/6134

Cited by 5 publications

(2 citation statements)

References 125 publications

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“…14 The conventional Fenton process (Fe 2 +/H 2 O 2 ) owing to working in an extremely acid solution (pH <4) and due to the formation of ferric hydroxide sludge during wastewater treatment is not suitable for practical applications. 15,16 Hence, an alternative Fenton-like catalyst substitute Fe 2 +/ H 2 O 2 is desirable to overcome the aforementioned problems.…”

Section: Introductionmentioning

confidence: 99%

RSM-BBD Optimization of Fenton-Like Degradation of 4-Nitrophenol Using Magnetite Impregnated Kaolin

Belachew

Fekadu

Abebe

2020

Air, Soil and Water Research

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In this work, we have reported a low-cost and environmentally friendly Fe3O4-modified activated kaolin (AK-Fe3O4) composite for efficient Fenton-like degradation of 4-nitrophenol (4-NP) and optimization of the degradation variables. The AK-Fe3O4 composites were characterized by Fourier transform infrared spectroscopy, powder x-ray diffraction, scanning electron microscopy (SEM), and vibrating sample magnetometer (VSM). X-ray diffraction confirms the syntheses of pure phases of Fe3O4 and AK-Fe3O4. The SEM image of the AK-Fe3O4 composite reveals the formation of a highly porous surface. The room temperature VSM analysis describes the superparamagnetic nature of AK-Fe3O4 composites with 25 emu/g magnetization values. Response surface methodology coupled with Box-Behnken design was used to optimize the 4-NP degradation (%) variables such as contact time (10-90 minutes), 4-NP concentration (10-30 mg/L), and pH (3-8). The high regression value ( R² = 0.9964 and adjusted R² = 0.9917) and analysis of variance ( P < .0001) show that the quadratic model can sufficiently explain the 4-NP degradation (%). The optimum 4-NP degradation was found to be 96.01% ± 1.89% using 1 mg/mL of AK-Fe3O4, 20 mg/L of 4-NP, 97.9 mmol/L of H2O2, and pH of 3 at the end of 75 minutes of reaction time. Moreover, the catalyst shows good recyclability and stability after 5 successive degradations of 4-NP. In general, a low-cost and magnetically separable AK-Fe3O4 composite is an effective Fenton-like catalyst for the degradation of 4-NP.

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Section: Introductionmentioning

confidence: 99%

RSM-BBD Optimization of Fenton-Like Degradation of 4-Nitrophenol Using Magnetite Impregnated Kaolin

Belachew

Fekadu

Abebe

2020

Air, Soil and Water Research

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“…For the treatment of generated wastewater, various conventional and non-conventional methods like coagulation method [31], biological method [32], ion exchange method have been used, but among these methods, advanced oxidation technology (AOTs) is very effective comparatively [16,33]. During advanced oxidation reaction process, an oxidizing agent (•OH radical) reacts with pollutant and degrades almost all the harmful recalcitrant compounds into CO2, H2O, and inorganic salts [34]. Hydroxyl radical (•OH) is one of the strongest oxidizing oxidants (E 0 =2.73 V).…”

Section: Introductionmentioning

confidence: 99%

A Review Paper on Heterogeneous Fenton Catalyst: Types of Preparation, Modification Techniques, Factors Affecting the Synthesis, Characterization, and Application in the Wastewater Treatment

Kumar

Mohapatra

Dharmadhikari

et al. 2019

Bull. Chem. React. Eng. Catal.

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This comprehensive review focuses on the different factors, modification in the synthesis method, characterization and application of heterogeneous catalyst in the wastewater treatment based on the Fenton process. The present review highlights the different catalyst preparation methods like wet impregnation method, hydrothermal method, sol-gel method, precipitation method and their application to treat different recalcitrant organic chemicals. Major heterogeneous catalyst synthesis methods were discussed with their excellent workability. The importance of modification through physical and chemical method was also reported. Different catalyst, pollutants and optimum parametric conditions available in the literature along with some relevant studies are summarized. The effect of factors like pH, calcination and some other modifiers on the synthesis and their efficiency in the wastewater treatment has been described. The important characterization of synthesized catalysts explaining their working efficiency has also been discussed. In the final section, the application of heterogeneous catalyst synthesized by different methods in the wastewater/effluent treatment has been investigated. The main aim of this review is to find out the influence of process parameters and catalytic method on degradation/decolorization of organic compounds present in industrial or synthetic wastewater. Copyright © 2020 BCREC Group. All rights reserved

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Application of biological and advanced oxidation processes (AOPs) for the remediation of wastewater laden with toxic pollutants

Verma

Kumar

Ekka

et al. 2020

Removal of Toxic Pollutants Through Microbiological and Tertiary Treatment

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Greener And Expedient Approach for the Wastewater Treatment by Fenton and Photo-Fenton Processes: A Review

Cited by 5 publications

References 125 publications

RSM-BBD Optimization of Fenton-Like Degradation of 4-Nitrophenol Using Magnetite Impregnated Kaolin

RSM-BBD Optimization of Fenton-Like Degradation of 4-Nitrophenol Using Magnetite Impregnated Kaolin

A Review Paper on Heterogeneous Fenton Catalyst: Types of Preparation, Modification Techniques, Factors Affecting the Synthesis, Characterization, and Application in the Wastewater Treatment

Application of biological and advanced oxidation processes (AOPs) for the remediation of wastewater laden with toxic pollutants

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