Pollutant removal and acute toxicity assessment (Artemia salina) of landfill leachate treated by photo-Fenton process mediated by oxalic acid

Borba, Fernando Henrique; Leichtweis, Jandira; Bueno, Francine; Pellenz, Leandro; Inticher, Jonas J.; Seibert, Daiana

doi:10.1016/j.jwpe.2019.01.017

Cited by 33 publications

(7 citation statements)

References 65 publications

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“…Bioassays using micro-crustaceans (A. salina) were carried out in order to evaluate the toxicity of compounds present in the untreated and persistent in the treated using TiO 2 samples. A. salina was previously reported by researchers (14,(41)(42)(43)(44)(45) as a toxicity bioindicator with advantages, compared to indirect methods, such as: low cost, great sensitivity to toxic substances and a fast response, which is used to estimate directly the real toxicity levels.…”

Section: Methodsmentioning

confidence: 99%

“…Possibly, in case of extending the treatment time it would be possible to reduce the residual toxicity; however, the most important is the marked reduction in the first minutes of photodegradation with the synthesized TiO2 samples. Toxicity measurements using Artemias salinas are very well-established and reliable method, being used in several previous studies (40)(41)(42)(43)45,71).…”

Section: Assessment Of the Toxicity Through The Bioindicator A Salinamentioning

confidence: 99%

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TiO₂ Synthesis by the Pechini’s Method and Application for Diclofenac Photodegradation^†

Souza

Neves

França

et al. 2020

Photochem & Photobiology

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In this work, the effect of the calcination temperature on the TiO2 synthesis using Pechini’s method was reported. The adopted calcination temperatures were 500, 600, and 700°C. XRD measurements indicated the composition of crystalline phases, and from there, the conversion of the anatase phase to rutile. TiO2 Evonik® was used as a reference standard and sodium diclofenac as a standard for photodegradation assessment. The average crystalline size increased. In both cases, this trend accompanied the increase in calcination temperature. The optical properties were performed using diffuse UV‐Vis reflectance. Results obtained indicated maximum absorption wavelength values more intense and displaced to the visible region. Also, the estimated band gap energy values decreased. The photocatalytic performance of TiO2 samples was superior to the reference catalyst (TiO2 Evonik®). Especially in the first 10 minutes, the comparative photodegradation was up to approximately 58% higher. The photodegradation kinetic constants were also higher, and by comparison, up to approximately 73% higher. Toxicity measurements, using Artemias salina, also indicated similar decay behavior in the first 10 minutes, with a performance of up to approximately 60%.

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Section: Methodsmentioning

confidence: 99%

Section: Assessment Of the Toxicity Through The Bioindicator A Salinamentioning

confidence: 99%

TiO₂ Synthesis by the Pechini’s Method and Application for Diclofenac Photodegradation^†

Souza

Neves

França

et al. 2020

Photochem & Photobiology

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“…Additionally, the introduction of chelating agents, especially organic carboxylic acid into the Fenton reaction, proved to be an effective method for broadening the applicable pH values. Several different organic carboxylic acids, such as citric acid, oxalic acid, NTA, and EDTA, were used to modify the Fenton process and proved to be efficient [11][12][13][14]. Ethylenediamine-N,N'-disuccinic-acid (EDDS), a biodegradable isomer of EDTA, was used as a chelating agent in homogeneous and heterogeneous Fenton and photo-Fenton systems in our previous studies [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Degradation of 2,4-Dichlorophenol by Ethylenediamine-N,N′-disuccinic Acid-Modified Photo-Fenton System: Effects of Chemical Compounds Present in Natural Waters

et al. 2020

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This paper describes a study of the treatment of 2,4-dichlorophenol (2,4-DCP) with an ethylenediamine-N,N′-disuccinic-acid (EDDS)-modified photo-Fenton system in ultrapure water and different natural waters. The results showed that the EDDS-modified photo-Fenton system is adequate for 2,4-DCP degradation. Compared with a medium containing a single organic pollutant, the removal of pollutants in a more complex medium consisting of two organic compounds is slower by around 25 to 50% as a function of the organic pollutant. Moreover, 2,4-DCP can be further effectively degraded in the presence of organic materials and various inorganic ions. However, the photodegradation of 2,4-DCP in different natural waters, including natural lake water, effluent from domestic sewage treatment plants, and secondary effluent from pulp and paper mill wastewaters, is inhibited. Chemical compounds present in natural waters have different influences on the degradation of 2,4-DCP by adopting the EDDS-modified photo-Fenton system. In any case, the results obtained in this work show that the EDDS-modified photo-Fenton system can effectively degrade pollutants in a natural water body, which makes it a promising technology for treating pollutants in natural water bodies.

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“…Uma variedade de recursos naturais é extraída diariamente do meio ambiente e transformada em bens, a fim de melhorar a qualidade de vida da sociedade e manter seus padrões de consumo (RANI et al, 2020). Além disso, uma redução no ciclo de vida dos produtos, acarreta em uma elevada geração de resíduos sólidos urbanos (RSU), levando a uma necessidade de descarte adequado (BORBA et al, 2019). Os aterros sanitários são tecnologias convencionais eficientes aplicadas à disposição final dos RSU, em que sua decomposição ocorre por processos químicos, físicos e biológicos, gerando o lixiviado de aterro (LA) como subproduto (GHANBARI et al, 2020).…”

Section: Introductionunclassified

“…Buscando alternativas para minimizar os impactos adversos do descarte do LA em corpos d'água, diversas pesquisas vem sendo desenvolvidas sobre métodos para o seu tratamento, como: célula de combustível microbiana (ELMAADAWY et al, 2020); eletrocoagulação seguido de eletro-oxidação (GHANBARI et al, 2020); tratamento fotocatalítico (AZADI et al, 2020); processo foto-Fenton (BORBA et al, 2019); processo de oxidação por eletrocossulfato (ONN et al, 2020); adsorção (FERRAZ; YUAN, 2020) entre outros.…”

Section: Introductionunclassified

Evolução do Conhecimento Científico na Engenharia Ambiental e Sanitária

Sant'Ana¹

2020

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Direitos para esta edição cedidos à Atena Editora pelos autores. Todo o conteúdo deste livro está licenciado sob uma Licença de Atribuição Creative Commons. Atribuição-Não-Comercial-NãoDerivativos 4.0 Internacional (CC BY-NC-ND 4.0).O conteúdo dos artigos e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores, inclusive não representam necessariamente a posição oficial da Atena Editora. Permitido o download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem a possibilidade de alterá-la de nenhuma forma ou utilizá-la para fins comerciais.A Atena Editora não se responsabiliza por eventuais mudanças ocorridas nos endereços convencionais ou eletrônicos citados nesta obra.Todos os manuscritos foram previamente submetidos à avaliação cega pelos pares, membros do Conselho Editorial desta Editora, tendo sido aprovados para a publicação.

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Pollutant removal and acute toxicity assessment (Artemia salina) of landfill leachate treated by photo-Fenton process mediated by oxalic acid

Cited by 33 publications

References 65 publications

TiO₂ Synthesis by the Pechini’s Method and Application for Diclofenac Photodegradation^†

TiO₂ Synthesis by the Pechini’s Method and Application for Diclofenac Photodegradation^†

Degradation of 2,4-Dichlorophenol by Ethylenediamine-N,N′-disuccinic Acid-Modified Photo-Fenton System: Effects of Chemical Compounds Present in Natural Waters

Evolução do Conhecimento Científico na Engenharia Ambiental e Sanitária

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Pollutant removal and acute toxicity assessment (Artemia salina) of landfill leachate treated by photo-Fenton process mediated by oxalic acid

Cited by 33 publications

References 65 publications

TiO2 Synthesis by the Pechini’s Method and Application for Diclofenac Photodegradation†

TiO2 Synthesis by the Pechini’s Method and Application for Diclofenac Photodegradation†

Degradation of 2,4-Dichlorophenol by Ethylenediamine-N,N′-disuccinic Acid-Modified Photo-Fenton System: Effects of Chemical Compounds Present in Natural Waters

Evolução do Conhecimento Científico na Engenharia Ambiental e Sanitária

Contact Info

Product

Resources

About

TiO₂ Synthesis by the Pechini’s Method and Application for Diclofenac Photodegradation^†

TiO₂ Synthesis by the Pechini’s Method and Application for Diclofenac Photodegradation^†