Degradation of Acid Black 210 by advanced oxidative processes: O<sub>3</sub> and O<sub>3</sub>/UV

Carvalho, Cassandra Bonfante de; Franco, Marcela Espina de; Souza, Fernanda Timm Seabra; Féris, Liliana Amaral

doi:10.1080/01919512.2018.1435258

Cited by 12 publications

(2 citation statements)

References 31 publications

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“…In addition, the AB210 can also be metabolized by several microorganisms: consortium SV5 (Mathew and Madamwar, 2004), Cladosporium cladosporioides (Vijaykumar et al, 2006), Bacillus thuriengiensis, Providencia sp (Dave and Dave, 2009), Providencia sp. SRS82 (Agrawal et al, 2014), and by advanced oxidative processes, such as O 3 and O 3 / UV (Bonfante de Carvalho et al, 2018). However, there is no indication regarding the subproducts generated in all these processes and there is an ecotoxicological concern about the possible products generated after the degradation of AB210.…”

Section: Introductionmentioning

confidence: 99%

Stability of Acid Black 210 dye in Tannery Industry Effluent in Aqueous Solution Is Limited and Generates Harmful Subproducts

Christovam

Franco

Zocolo

et al. 2022

Front. Environ. Sci.

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The present work investigates the occurrence of the Acid Black 210 (AB210) dye and its subproducts in the tannery industry by analytical techniques. The AB210 is an important dye characterized by three azo groups as a chromophore and is one of the most used azo dyes in the tannery industry. The stability of AB210 in front of chlorination, sunlight exposition, and ambient conditions was investigated, as well as its occurrence and degradation products in the tannery wastewater. The stability study of AB210 showed a decrease in dye concentration of up to 45% after 14 days at room temperature. The exposure of the AB 210 by a solar simulator for 3 h showed discoloration of the dye. Furthermore, the chlorination of the AB210 caused a reduction of 25% in the intensity of the absorption band at the visible region after 300 s of treatment with sodium hypochlorite (NaClO). Studies based on high-performance liquid chromatography (HPLC-DAD), liquid chromatography-mass spectrometry (LC-MS/MS), and nuclear magnetic resonance (NMR) have indicated the occurrence of several harmful compounds such as benzene, cresol, naphthalene, phenol, 2-naphthylamine, and phenylacetic acid, and three aromatic amines, 2-naphthylamine, 2,6-dimethylaniline and 4-nitroaniline from the tannery industry. The cytotoxicity assay showed toxicity for the samples stored for a long period. Thus, the immortalized human keratinocyte (HaCAT) and 3T3 cells assays for the AB210 stored for 14 days showed 70% cell death in both strains evaluated. Our results demonstrated that the AB210 degradation is a great environmental concern due to increased toxicity for the body of living beings, especially for humans, as their biotransformation produces harmful compounds such as amines, which have been widely condemned by the International Agency for Research on Cancer.

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Section: Introductionmentioning

confidence: 99%

Stability of Acid Black 210 dye in Tannery Industry Effluent in Aqueous Solution Is Limited and Generates Harmful Subproducts

Christovam

Franco

Zocolo

et al. 2022

Front. Environ. Sci.

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“…12 Some other advanced oxidation technology also performed for the treatment of acid black 210 dye. 7,10,13,14 For electrochemical water treatment, a variety of electrodes can be utilized as anode materials. EO using BDD proved to be efficient because of its high overvoltage and oxidation potential.…”

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confidence: 99%

Tannery Dye Wastewater Treatment in Batch and Once through Continuous Mode by Electro-Oxidation Using MMO Electrode

Suman

Sangal

2022

J. Electrochem. Soc.

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Treatment of tannery wastewater is challenging because dye concentrations in tannery wastewater are typically lower than any other chemical compound, but their high molar extinction coefficients result in waste streams with heavy coloration even at very low concentrations. In the present work, treatment of Acid Black 210 dye wastewater in batch and once through continuous mode by electro-oxidation through novel Mix Metal Oxide Ti/TiO2-RuO2-IrO2 electrode was explored. The effects of parameters were studied in a laboratory scale to observe the effects on color removal, degradation, and energy consumption efficiency. A response surface methodology with a full factorial BBD model was used for designing and optimizing responses. Multi-response optimization with a desirability function was used to optimize the multiple responses. Optimum conditions for 500 ppm Acid Black 210 dye were achieved at a current intensity of 1.6 A, pH of 6.48, and treatment time of 35 min. The BBD model efficiently interacts between optimizing variables, and its prediction matched the experiment results. At the optimum condition, a once-through continuous setup was run for the flow rates ranging from 5–30 ml min−1. The intermediates formed during the treatment process were analyzed through GC-MS. TOC removal, COD removal, and toxicity bioassay of the sample was also done for disposability analysis.

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Photocatalytic and Other Similar Green Technologies for Reducing Environmental Impacts of Leather Industries

Dave

Vajpayee

Ledwani

2021

Green Chemistry and Sustainable Technology

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Degradation of Acid Black 210 by advanced oxidative processes: O₃ and O₃/UV

Cited by 12 publications

References 31 publications

Stability of Acid Black 210 dye in Tannery Industry Effluent in Aqueous Solution Is Limited and Generates Harmful Subproducts

Stability of Acid Black 210 dye in Tannery Industry Effluent in Aqueous Solution Is Limited and Generates Harmful Subproducts

Tannery Dye Wastewater Treatment in Batch and Once through Continuous Mode by Electro-Oxidation Using MMO Electrode

Photocatalytic and Other Similar Green Technologies for Reducing Environmental Impacts of Leather Industries

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Degradation of Acid Black 210 by advanced oxidative processes: O3 and O3/UV

Cited by 12 publications

References 31 publications

Stability of Acid Black 210 dye in Tannery Industry Effluent in Aqueous Solution Is Limited and Generates Harmful Subproducts

Stability of Acid Black 210 dye in Tannery Industry Effluent in Aqueous Solution Is Limited and Generates Harmful Subproducts

Tannery Dye Wastewater Treatment in Batch and Once through Continuous Mode by Electro-Oxidation Using MMO Electrode

Photocatalytic and Other Similar Green Technologies for Reducing Environmental Impacts of Leather Industries

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Product

Resources

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Degradation of Acid Black 210 by advanced oxidative processes: O₃ and O₃/UV