Panorama das indústrias galvânicas de Juazeiro do Norte, Ceará: com ênfase nos teores de metais-traço nos efluentes e resíduos sólidos

Figueirêdo, Sheilla da Silva Melo; Pinto, Leonardo Alves; Oliveira, L. S. C.; Menezes, Jorge Marcell Coelho; Filho, Francisco José de Paula

doi:10.1590/s1413-415220190063

Cited by 7 publications

(3 citation statements)

References 9 publications

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“…Já os efluentes galvânicos apresentam concentrações de metais traço que dificilmente são removidos por tecnologias convencionais de tratamento. Neste sentido, destaca-se que a literatura especializada relata ineficiência de remoção dos metais traço Pb, Ni, Cu e Cr em estações de Contribuciones a Las Ciencias Sociales, São José dos Pinhais, v.17, n.2, p. 01-24, 2024 tratamento de esgotos que tratam efluentes de indústrias galvânicas no município de Juazeiro do Norte -CE, visto que, após o tratamento químico os efluentes permaneceram com concentrações superiores aos padrões impostos pela legislação estadual, evidenciando a necessidade de melhorias no processo de tratamento (FIGUEIRÊDO et al, 2021). Os dados de automonitoramento expostos na Tabela 2 correspondem a efluentes industriais tratados por ETEs de atividades de fabricação de semijóias-bijuterias e atividade de abate de animais.…”

Section: Resultsunclassified

Effluent treatment plants for activities with high pollutant-degradation potential: an analysis of compliance with legal requirements

Oliveira,

Gonçalves,

Da Silva

et al. 2024

CLCS

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Sewage treatment plants (STPs), despite being fundamental for controlling environmental pollution, are also potential causes of environmental impact, therefore requiring an efficient self-monitoring plan to verify compliance with legal conditions. In this context, this research investigated the situation of Sewage Treatment Stations of enterprises that develop activities with high polluting degrading potential, located in Juazeiro do Norte – CE, in relation to compliance with legal guidelines. To guide this analysis, conditions were considered in resolutions from the Ceará State Environmental Council and municipal laws and decrees that deal with the matter under consideration. At the Municipal Environmental Authority of Juazeiro do Norte (AMAJU), data were collected from licensed enterprises that carried out high PPD activities, from the treatment technologies for effluents generated in each activity, from the STPs self-monitoring programs, and the types and locations of bodies receivers and the operating condition and physical flow of the AMAJU monitoring sector. The processing of data relating to the delivery of self-monitoring reports was carried out using percentages of 50 and 75%. From the analysis of the results, 48 enterprises were identified that carried out high PPD activities, of which 4 were located in areas that had restrictions on this type of use. It was also verified that there was an important battery of public water supply wells surrounded by such projects. It was found that there are 70 high PPD projects that are under the jurisdiction of AMAJU and that the quality of liquid effluents from their STPs is, under specific conditions, in compliance with the release standards established by COEMA Resolution Nº 02/2017. However, it was found that the majority of the enterprises surveyed were non-compliant regarding the quantity and frequency of sending self-monitoring reports to AMAJU. These weaknesses were attributed to the reduced technical staff of the environmental agency and the absence of its minimum infrastructure for the development of the actions necessary for the implementation of an efficient environmental monitoring system. To contribute to the improvement of this system, it was suggested to strengthen AMAJU's technical, financial and institutional support, in addition to establishing a distinction in relation to the requirements regarding the frequency of analyzes and the periodicity of delivery of liquid effluent self-monitoring reports, for enterprises. with different types and classes.

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Section: Resultsunclassified

Effluent treatment plants for activities with high pollutant-degradation potential: an analysis of compliance with legal requirements

Oliveira,

Gonçalves,

Da Silva

et al. 2024

CLCS

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“…For the levels of copper and chromium there is a very close line of reasoning, because the energy provided by the addition of solid NaOH to raise the pH facilitates their binding forming hydroxyls of Cu (OH)2 and Cr (OH)3although in the specific case of chromium in the presence of sulfates the chromium has a great facility of solubilization and formation of the chromate ion CrO4 2-, highly toxic and harmful to man and the environment. According to Figueirêdo et al (2021) the generation of galvanic waste is a worldwide problem, because the trace metals present therein are of great environmental risk.…”

Section: Results / Discussionmentioning

confidence: 99%

Efficiency of Galvanic Effluent Treatment in the city of Rio Verde-Goiás.

Oliveira

Couto

Aguiar

2023

REGET

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The anthropic impacts on the environment, its perception and prevention are constant objects of studies aimed at improving the quality of life. Within this comprehensive area, the process of galvanization for metals and its generated waste was evaluated here, because galvanization is an effective alternative in the protection against corrosion, and is also a good ally in the useful life of metal parts and although practical and profitable, this process generates a huge volume of slag. This work was intended to verify by atomic absorption spectrophotometry (AAS) the efficiency of the treatment performed in an electroplating plant installed in the city of Rio Verde-Goiás. The acid effluents, with emphasis on hexavalent chromium used in the passivation of the parts, were treated with sodium metabisulfite, keeping the final effluent within a passive threshold for disposal, although it requires post-treatment of liquid waste to maintain environmental safety.

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“…As atividades industriais responsáveis por estes tipos de efluentes são as indústrias têxtil, mineradora, metalúrgica e siderúrgica (FIGUEIRÊDO et al, 2021;PEREIRA, 2021;BARBOSA, 2019).…”

Section: Introductionunclassified

FOTODEGRADAÇÃO DO 17α-Etinilestradiol SOB CRISTAIS DE WO3 SUPORTADOS EM SBA-15 ATIVADOS POR LUZ POLICROMÁTICA

Filho¹,

Nolêto²,

Vieira³

et al. 2022

https://atenaeditora.com.br/catalogo/ebook/quimica-desvendando-propriedades-e-comportamentos-da-materia-2

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Direitos para esta edição cedidos à Atena Editora pelos autores. Open access publication by Atena Editora 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.Todos os manuscritos foram previamente submetidos à avaliação cega pelos pares, membros do Conselho Editorial desta Editora, tendo sido aprovados para a publicação com base em critérios de neutralidade e imparcialidade acadêmica.A Atena Editora é comprometida em garantir a integridade editorial em todas as etapas do processo de publicação, evitando plágio, dados ou resultados fraudulentos e impedindo que interesses financeiros comprometam os padrões éticos da publicação. Situações suspeitas de má conduta científica serão investigadas sob o mais alto padrão de rigor acadêmico e ético.

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Panorama das indústrias galvânicas de Juazeiro do Norte, Ceará: com ênfase nos teores de metais-traço nos efluentes e resíduos sólidos

Cited by 7 publications

References 9 publications

Effluent treatment plants for activities with high pollutant-degradation potential: an analysis of compliance with legal requirements

Effluent treatment plants for activities with high pollutant-degradation potential: an analysis of compliance with legal requirements

Efficiency of Galvanic Effluent Treatment in the city of Rio Verde-Goiás.

FOTODEGRADAÇÃO DO 17α-Etinilestradiol SOB CRISTAIS DE WO3 SUPORTADOS EM SBA-15 ATIVADOS POR LUZ POLICROMÁTICA

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