Evaluation of toxicity and mutagenicity of a synthetic effluent containing azo dye after Advanced Oxidation Process treatment

Alderete, Bárbara Lopes; Silva, Juliana da; Godoi, Rafael Souza de; Silva, Fernanda Rabaioli da; Taffarel, Sílvio Roberto; Silva, Lucas Pisoni da; Garcia, Ana Letícia Hilário; Júnior, Horst Mitteregger; Amorim, Hermes Luís Neubauer de; Picada, Jaqueline Nascimento

doi:10.1016/j.chemosphere.2020.128291

Cited by 115 publications

(39 citation statements)

References 67 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…4 Mesopore volume calculated by the difference V total -V micro . 5 Surface area and micropore volume calculated by the Dubinin-Radushkevich equation. 6 Total and micropore volumes calculated by the Horvath-Kawazoe equation.…”

Section: Bimetallic Zeolite Catalysts In the Degradation Of Dye Compomentioning

confidence: 99%

“…The discharge of dyes into water resources, in addition to unaesthetic effects, has far more dangerous repercussions on health, since some of them are carcinogenic and mutagenic; this is why their removal from the environment is a very important issue. In this light, the degradation of these pollutants by effective and economical treatments, such as the advanced oxidation processes (AOPs), has attracted a great and continuous interest [1][2][3][4][5][6]. Among AOPs, the heterogeneous Fenton-like processes have been paid great attention for their low cost, high efficiency, and mild conditions (20-50 • C and atmospheric pressure) [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…External surface area and micropore volume calculated by the t-method 4. Mesopore volume calculated by the difference Vtotal-Vmicro 5. Surface area and micropore volume calculated by the Dubinin-Radushkevich equation 6.…”

mentioning

confidence: 99%

“…Decolorization efficiency (%) calculated by Equation (10) (see Section 3.4) 4. TOC initial of Tar = 10.8 ppm 5. Mineralization efficiency (%) calculated by Equation (11) (see Section 3.4).…”

mentioning

confidence: 99%

See 3 more Smart Citations

Fenton-Type Bimetallic Catalysts for Degradation of Dyes in Aqueous Solutions

et al. 2020

View full text Add to dashboard Cite

Dye compounds are becoming a problematic class of pollutants for the environment, so it is important to develop stable catalysts for their elimination. First, several studies were performed with different Y zeolites (NaY, (NH4)Y and USY) in order to select the best support for the preparation of the bimetallic catalysts. In particular, NaY zeolite was used as the support for Fe, Cu and Mn metals to prepare mono and bimetallic Fenton-type catalysts by the ion exchange method. The catalysts were characterized by several techniques, such as chemical analysis, nitrogen physisorption, X-ray diffraction (XRD), scanning electron microscopy (SEM) and cyclic voltammetry studies. Characterization results revealed that the metals were successfully ion-exchanged within the NaY zeolite. The prepared catalysts were tested for the aqueous-phase degradation of dye compounds (Procion yellow (PY) and Tartrazine (Tar)) at atmospheric pressure and different temperatures, using H2O2 as the oxidant. All the investigated samples were found to be active in degrading the dyes through the Fenton-type process; however, the oxidation rate was found to be higher in the presence of the bimetallic catalysts. CuFe-NaY displays the best mineralization rate for PY oxidation while MnFe-NaY shows the highest activity for Tar degradation. This work may provide further insight into the design of Fenton-type bimetallic catalysts with improved catalytic properties for environmental remediation.

show abstract

Section: Bimetallic Zeolite Catalysts In the Degradation Of Dye Compomentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Fenton-Type Bimetallic Catalysts for Degradation of Dyes in Aqueous Solutions

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Various dyes contain in their structure phenolic rings and several functional groups, like NO 2 , NO, OH, COOH, NH 2 , NHR and NR 2 , which are responsible for their toxicity [4,5]. Therefore, the resulting dye effluents could be toxic, carcinogenic or mutagenic to aquatic and human life [6,7]. Additionally, dyes can make water colored, blocking sunlight penetration at the water's surface, inhibiting photosynthesis and damaging the ecosystem.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Metal Organic Framework Immobilized Laccase for Wastewater Decolorization

et al. 2021

View full text Add to dashboard Cite

The laccase enzyme was successfully immobilized over a magnetic amino-functionalized metal–organic framework Fe3O4-NH2@MIL-101(Cr). Different techniques were used for the characterization of the synthesized materials. The Fe3O4-NH2@MIL-101(Cr) laccase showed excellent resistance to high temperatures and low pH levels with a high immobilization capacity and large activity recovery, due to the combination of covalent binding and adsorption advantages. The long-term storage of immobilized laccase for 28 days indicated a retention of 88% of its initial activity, due to the high stability of the immobilized system. Furthermore, a residual activity of 49% was observed at 85 °C. The immobilized laccase was effectively used for the biodegradation of Reactive Black 5 (RB) and Alizarin Red S (AR) dyes in water. The factors affecting the RB and AR degradation using the immobilized laccase (dye concentration, temperature and pH) were investigated to determine the optimum treatment conditions. The optimum conditions for dye removal were a 5 mg/L dye concentration, temperature of 25 °C, and a pH of 4. At the optimum conditions, the biodegradation and sorption-synergistic mechanism of the Fe3O4-NH2@MIL-101(Cr) laccase system caused the total removal of AR and 81% of the RB. Interestingly, the reusability study of this immobilized enzyme up to five cycles indicated the ability to reuse it several times for water treatment.

show abstract

Phytogenically bioengineered metal nanoarchitecture for degradation of refractory dye water pollutants: A pragmatic minireview

Emmanuel

Adesibikan

Saliu

2022

Applied Organom Chemis

View full text Add to dashboard Cite

The present scenario of water insecurity (poor availability and accessibility to clean and healthy water when needed) denotes the preponderance of environmental damage caused by effluents or waste runoff from industries, such as the dye and textile industries. The polluted waters have led to terrible and sonorous negative impacts on the ecosystem and econetworking, thus, urging for a sustainably suitable substitute to tackle and annul the noxious environmental constraint posse by the hazardous dye effluent. Several chemical and physical methods for treating dye effluent are now in use, but they are time‐consuming, expensive, and inefficient. Interestingly, nanoparticles have egressed as a superior answer for efficient dye removal and degradation, because of their chemical reactivity and exceptional surface characteristics. As a result, the use of metal nanomaterials in the treatment of dye runoffs has been thoroughly investigated. The study used major scientific databases such as SciFinder, Scopus, PubMed, Google Scholar, and Science Direct to conduct a comprehensive review of publicly available literature. Degradation, dye effluent, green metal nanoparticles, and water pollution were the keywords used to find scholarly papers. Efforts were made to figure out and explain the mechanism of dye effluent degradation, how long the degradation will take and how effective the use of plant biosynthesized metal nanoparticles for dye removal is. In addition, the role of bimetallic nanoparticles has also been investigated with remarkable feat from literature. The current level of knowledge about the mechanism and the use of plant biogenic metal nanoparticles in common dye effluent treatment is summarized in this paper.

show abstract

Evaluation of toxicity and mutagenicity of a synthetic effluent containing azo dye after Advanced Oxidation Process treatment

Cited by 115 publications

References 67 publications

Fenton-Type Bimetallic Catalysts for Degradation of Dyes in Aqueous Solutions

Fenton-Type Bimetallic Catalysts for Degradation of Dyes in Aqueous Solutions

Magnetic Metal Organic Framework Immobilized Laccase for Wastewater Decolorization

Phytogenically bioengineered metal nanoarchitecture for degradation of refractory dye water pollutants: A pragmatic minireview

Contact Info

Product

Resources

About