Evaluation of advanced oxidation processes for water and wastewater treatment – A critical review

Miklos, David B.; Remy, Christian; Jekel, Martin; Linden, Karl G.; Drewes, Jörg E.; Hübner, Uwe

doi:10.1016/j.watres.2018.03.042

Cited by 2,279 publications

(870 citation statements)

References 133 publications

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“…It is necessary to consider that UV lamps used in traditional photo‐Fenton processes need electrical energy, resulting in relatively high energy demands . However, when solar irradiation is used as the UV source, the consumption of electrical energy is non‐existent, explaining the results obtained in this research.…”

Section: Resultsmentioning

confidence: 69%

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Fenton and solar photo‐Fenton processes in the depuration of wastewater resulting from production of grape juice. A factorial design

Poblete

Cortés

Maldonado

2020

J of Chemical Tech & Biotech

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BACKGROUND Grapes used in the production of juice have high total phenolic content due to the undesirable fermentation process, consequence of the high content of sugar ant fatty acids in grapes, which produce a high amount of ethanol. Therefore, the amount of wastewater with a high concentration of organic matter is an environmental concern related to juice production. We evaluated the potential of the use of these Fenton and photo‐Fenton processes in the depuration of organic matter in the juice production wastewater and determined the factors that affect the treatment. RESULTS We obtained different levels of organic matter removal, with a higher level for the experimental conditions, that is, a high concentration of H2O2 and Fe+2 and the use of UV irradiation (photo‐Fenton). In this case, COD and polyphenol elimination was 70.2 % and 36.1%, respectively, with juice wastewater under no pretreatment and applying UV irradiation. The most important factor in the removal of COD in juice wastewater was the concentration of Fe+2, followed by H2O2 and the presence of solar UV. The most important factor in the removal of polyphenols is the pretreatment of the juice wastewater, with better results whenthere is no pretreatment. The highest removal of polyphenols was obtained using the water without being pretreated. CONCLUSIONS The specific energy consumption and the electrical energy per order under the photo‐Fentonprocess was lower than under the Fenton process, indicating a more efficient energy use. This is because the natural UV irradiation enhances the chemical reaction of the oxidation process, producing a higher difference in the concentration of COD and polyphenols in comparison to the process carried out without UV solar irradiation. © 2019 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 69%

“…SEC and E EO were lower for COD than for polyphenols owing to a higher elimination of the first parameter in comparison with the second one. The results for E EO obtained using photo‐Fenton processes coincide with those of Miklos et al ., who got similar values for this parameter.…”

Section: Resultsmentioning

confidence: 99%

Fenton and solar photo‐Fenton processes in the depuration of wastewater resulting from production of grape juice. A factorial design

Poblete

Cortés

Maldonado

2020

J of Chemical Tech & Biotech

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“…The synthesized BiÀ NaBiO 3 could produce huge amount of reactive oxygen species (ROS) with or without light illumination due to different mechanisms. In photocatalytic condition (PC), 0.2 BiÀ NaBiO 3 performed excellent catalytic property and high stability on the oxidation of liquid 4-chlorophenol (4-CP) and gaseous toluene, because of photo-generated hole-electron produced from BiÀ NaBiO 3 . In dark condition (Dark), the self-generated oxygen vacancy should be responsible for the generation of ROS leading to the oxidation of 4-CP.…”

Section: Insight Into Different Mechanisms For Oxidation Of Liquid Anmentioning

confidence: 99%

Insight into Different Mechanisms for Oxidation of Liquid and Gaseous Pollutants by Bi−NaBiO₃ with or without Visible Light Illumination

2019

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In this work, self-assembled NaBiO 3 (BiÀ NaBiO 3 ) was fabricated via a facile ion-exchange method. The synthesized BiÀ NaBiO 3 could produce huge amount of reactive oxygen species (ROS) with or without light illumination due to different mechanisms. In photocatalytic condition (PC), 0.2 BiÀ NaBiO 3 performed excellent catalytic property and high stability on the oxidation of liquid 4-chlorophenol (4-CP) and gaseous toluene, because of photo-generated hole-electron produced from BiÀ NaBiO 3 . In dark condition (Dark), the self-generated oxygen vacancy should be responsible for the generation of ROS leading to the oxidation of 4-CP. According to materials characterization and EPR testing, for 0.2 BiÀ NaBiO 3 , 1 O 2 , * O 2 À , or * OH were detected during PC condition but only 1 O 2 was found in Dark condition. This work provides a novel material to remediation of polluted wastewater or indoor air both in PC and Dark conditions.

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“…Among these techniques, AOPs have recently been considered as a promising method due to high efficiency, nontoxicity and relatively low cost. In this process, in situ generation of reactive oxygen species (ROSs) such as hydroxyl (•OH) and sulfate radicals, O 3 , H 2 O 2 and superoxide anion radicals (O2 • ‐ ) provide complete degradation pathways of pollutants to inorganic ions, H 2 O and CO 2 . Among the different types of AOPs, the Fenton process has been considered as the most important for oxidizing environments contaminated by these dyes due to features such as low toxicity of reagents and easy operation .…”

Section: Introductionmentioning

confidence: 99%

“…In this process, in situ generation of reactive oxygen species (ROSs) such as hydroxyl (•OH) and sulfate radicals, O 3 , H 2 O 2 and superoxide anion radicals (O2 • -) provide complete degradation pathways of pollutants to inorganic ions, H 2 O and CO 2 . 8,9 Among the different types of AOPs, the Fenton process has been considered as the most important for oxidizing environments contaminated by these dyes due to features such as low toxicity of reagents and easy operation. 10 In the Fenton process, •OH with an oxidation potential of 2.8 V is produced by adding ferrous (Fe 2+ ) ions and H 2 O 2 .…”

Section: Introductionmentioning

confidence: 99%

Optimization of the 3D electro‐Fenton process in removal of acid orange 10 from aqueous solutions by response surface methodology

Mohammadi

Alinejad

Khajeh

et al. 2019

J of Chemical Tech & Biotech

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BACKGROUND In recent decades, rapid population growth and industrial development have led to the release of toxic compounds into water resources. Several technologies have been proposed to address the problem, and among them, the 3D electro‐Fenton process has found great popularity due to its high efficiency and simple operation. In the 3D electro‐Fenton process, the type of particle electrode is one of the most important factors owing to its impact on the reduction of energy consumption and generation of reactive species. In the present study, the optimization of the 3D electro‐Fenton process coupled with iron‐coated nickel foam (NF‐Fe), as a new particle electrode, in the removal of acid orange 10 was investigated using response surface methodology (RSM). RESULTS The RSM results showed that the quadratic model has a high R2 and high F‐value based on ANOVA analysis. The optimum efficiency of dye removal (99.15%) was obtained at pH 5.6, an NF‐Fe dosage of 0.68 g L−1, a time of 34.6 min, and current density of 23.62 mA cm−2. Comparative tests showed the high efficiency of the 3D electro‐Fenton process compared to other electrochemical systems. Quenching experiments demonstrated the production of different reactive species in the 3D process. The stability experiment proved that the NF‐Fe has a high potential to improve the long‐term degradation of dye. CONCLUSIONS Due to its high efficiency, production of more reactive species and excellent stability of the NF‐Fe electrode, this 3D electro‐Fenton process is an excellent option for removal of dye from aqueous solutions. © 2019 Society of Chemical Industry

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Evaluation of advanced oxidation processes for water and wastewater treatment – A critical review

Cited by 2,279 publications

References 133 publications

Fenton and solar photo‐Fenton processes in the depuration of wastewater resulting from production of grape juice. A factorial design

Fenton and solar photo‐Fenton processes in the depuration of wastewater resulting from production of grape juice. A factorial design

Insight into Different Mechanisms for Oxidation of Liquid and Gaseous Pollutants by Bi−NaBiO₃ with or without Visible Light Illumination

Optimization of the 3D electro‐Fenton process in removal of acid orange 10 from aqueous solutions by response surface methodology

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Evaluation of advanced oxidation processes for water and wastewater treatment – A critical review

Cited by 2,279 publications

References 133 publications

Fenton and solar photo‐Fenton processes in the depuration of wastewater resulting from production of grape juice. A factorial design

Fenton and solar photo‐Fenton processes in the depuration of wastewater resulting from production of grape juice. A factorial design

Insight into Different Mechanisms for Oxidation of Liquid and Gaseous Pollutants by Bi−NaBiO3 with or without Visible Light Illumination

Optimization of the 3D electro‐Fenton process in removal of acid orange 10 from aqueous solutions by response surface methodology

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Product

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About

Insight into Different Mechanisms for Oxidation of Liquid and Gaseous Pollutants by Bi−NaBiO₃ with or without Visible Light Illumination