Comparison of various advanced oxidation processes used in remediation of industrial wastewater laden with recalcitrant pollutants

Krishnan, S.; Rawindran, Hemamalini; Sinnathambi, Chandra Mohan; Lim, Jun Wei

doi:10.1088/1757-899x/206/1/012089

Cited by 138 publications

(47 citation statements)

References 17 publications

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“…AOPs are characterized by a common chemical feature, where they utilize the highly reactive hydroxyl radicals for achieving complete mineralization of the organic pollutants into carbon dioxide and water [77]. The • OH radical allows the very quick cleavage of the aromatic rings as well as the progressive oxidation of some aliphatic carboxylic acid by-products.…”

Section: Comparison With Other Aop Technologiesmentioning

confidence: 99%

Bio-electro-Fenton process for the degradation of Non-Steroidal Anti-Inflammatory Drugs in wastewater

Nadais

Alves

et al. 2018

Chemical Engineering Journal

117

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Section: Comparison With Other Aop Technologiesmentioning

confidence: 99%

Bio-electro-Fenton process for the degradation of Non-Steroidal Anti-Inflammatory Drugs in wastewater

Nadais

Alves

et al. 2018

Chemical Engineering Journal

117

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“…The photoproducts are reported to cause phototoxic effects due to their photosensitizing properties (Manrique-Moreno, Heinbockel, Suwalsky, Garidel, & Brandenburg, 2016). Physical, chemical, or biological wastewater treatment methods are deemed less effective for complete elimination of highly persistent chemicals, thus necessitating the research on advanced oxidation processes (AOPs) (Krishnan, Rewindran, Sinnath, & Lim, 2016). In activated carbon adsorption method, the pollutants undergo phase change but no decomposition which worsens pollution problem.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic degradation of ibuprofen in water using TiO₂ and ZnO under artificial UV and solar irradiation

Tanveer

Guyer²,

Abbas

2019

Water Environment Research

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The degradation of anti‐inflammatory and antipyretic drug (Ibuprofen; IBP) has been described in this study by using photocatalytic‐based advanced oxidation processes. The catalysts (TiO2 and ZnO) were activated by irradiation of artificial UV lamp and solar rays for the generation of highly oxidizing species which resulted in the degradation of IBP to intermediates and finally to carbon dioxide and water. In solar reactor, quartz and borosilicate tubes were installed for absorption of required ultraviolet rays and curved chrome plates were used to reflect and concentrate rays on the tubes containing feed mixture. The liquid chromatography, Total organic carbon (TOC), and Chemical oxygen demand (COD) tests were employed to determine the degradation rates and demineralization of solution samples. At catalyst dosing of 1–1.5 g/L, TiO2‐based experiments showed high degradation rate under acidic conditions. Similarly, for ZnO catalyst, 1 g/L dozing rate was found to be effective under neutral conditions (pH = 7.0). UV lamp‐based photocatalysis had higher degradation rate as compared to that of solar reactor. Moreover, better absorption of solar rays by quartz tubes resulted in higher degradation than that in borosilicate tubes. For UV lamp photocatalysis, the TOC and COD reduction was higher. With improved catalyst doping and better solar reactor design, solar‐based IBP degradation could be more promising than UV‐based catalysis. Practitioner points TiO2 and ZnO were employed to generate oxidizing agents for comparative photocatalytic degradation. Degradation rate of Ibuprofen with TiO2 was much higher compared to ZnO. Quartz material was found more effective as radiation absorbing material than borosilicate glass for solar photo catalysis. Influence of catalyst loading (TiO2 and ZnO) and pH conditions on degradation rate and mineralization of IBP was examined. IBP is a carcinogenic and endocrine disrupting drug so its degradation in water can protect ecological and human life.

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“…Hydroxyl radical generation is the basic principle of AOPs, produced by using hydrogen peroxide, UV-catalyst, O3, etc. and it mineralizes almost all organic chemicals [35].…”

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

show abstract

Comparison of various advanced oxidation processes used in remediation of industrial wastewater laden with recalcitrant pollutants

Cited by 138 publications

References 17 publications

Bio-electro-Fenton process for the degradation of Non-Steroidal Anti-Inflammatory Drugs in wastewater

Bio-electro-Fenton process for the degradation of Non-Steroidal Anti-Inflammatory Drugs in wastewater

Photocatalytic degradation of ibuprofen in water using TiO₂ and ZnO under artificial UV and solar irradiation

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

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Comparison of various advanced oxidation processes used in remediation of industrial wastewater laden with recalcitrant pollutants

Cited by 138 publications

References 17 publications

Bio-electro-Fenton process for the degradation of Non-Steroidal Anti-Inflammatory Drugs in wastewater

Bio-electro-Fenton process for the degradation of Non-Steroidal Anti-Inflammatory Drugs in wastewater

Photocatalytic degradation of ibuprofen in water using TiO2 and ZnO under artificial UV and solar irradiation

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

Contact Info

Product

Resources

About

Photocatalytic degradation of ibuprofen in water using TiO₂ and ZnO under artificial UV and solar irradiation