Potencial toxicológico de metais presentes em solos de cemitérios de Santa Maria - RS

Gomes, Bruno Casanova Vilaverde; Kummer, G.; Pereira, Márcia Maria da Silva Monteiro; Filho, Hécio José Izário; Salazar, Rodrigo Fernando dos Santos; Vasconcellos, Noeli Júlia Schüssler de

doi:10.4136/ambi-agua.1723

Cited by 3 publications

(3 citation statements)

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“…The analytical characterization of the metals was performed by the atomic absorption spectrometry technique, with flame atomization and by graphite oven, according to the metal concentration in the sample. To assess the repeatability and reproducibility of the sample preparations by acid digestion, the analytical determination of the metallic elements was based on studies reporting the use of addition and recovery tests and the use of certified reference material for quantification by spectrometric techniques used for environmental samples (Salazar et al, 2011a;Bianchi et al, 2012;Gomes et al, 2016).…”

Section: Sample Preparation For Multi-element Determination By Aasmentioning

confidence: 99%

“…This occurs because this landfill does not meet some design requirements listed in the National Policy for Solid Wastes (Brazil) (Silva et al, 2016;. It is therefore necessary to permanently characterize the physical-chemical parameters of the leachate material from the controlled landfill as a way of monitoring the landfill activity, and to propose solutions to possible remediation (Gomes et al, 2016;Peng, 2017;Mandal et al, 2017;Mohammad-Pajooh et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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2018

Rev. ambiente água

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Section: Sample Preparation For Multi-element Determination By Aasmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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2018

Rev. ambiente água

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“…This occurs because this landfill does not meet some design requirements listed in the National Policy for Solid Wastes (Brazil) (Silva et al, 2016;2017). It is therefore necessary to permanently characterize the physical-chemical parameters of the leachate material from the controlled landfill as a way of monitoring the landfill activity, and to propose solutions to possible remediation (Gomes et al, 2016;Peng, 2017;Mandal et al, 2017;Mohammad-Pajooh et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Characterization of controlled landfill leachate from the city of Guaratinguetá - SP, Brazil

Peixoto¹,

Salazar²,

Barboza³

et al. 2018

Rev. ambiente água

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This research evaluated the physicochemical parameters of a leachate sample from a controlled landfill in the city of Guaratinguetá-SP. The evaluation was conducted using spectrometric and spectrophotometric methods in order to assess the formation of persistent compounds. The selection of parameters was based on the CETESB Article 18 and CONAMA 357/05 Article 34, as well as organic characterization methods, such as FTIR, NMR (1H-NMR, 13C-NMR and APT), GC-MS, molar mass distribution and elemental analysis (CHN). Chemical and physical stability were also verified. The ammoniacal nitrogen concentration is 20 times greater than tolerance limit established by law (20 mg L -1 ). The Ba and Ni presented concentrations above those permitted by the legislation (CETESB Article 18 and CONAMA 357/05 Article 34). Those values of chemical oxygen demand (COD) and total organic carbon (TOC) were 1013 mg L -1 and 286 mg L -1 , respectively. It was not possible to determine the biochemical oxygen demand (BOD) of slurry sample. In this sense, the biodegradability parameter for the slurry studied was Non-Determinable (ND), indicating that the organic matter of the slurry studied is recalcitrant. Recalcitrant humic substances of landfill leachate the present low polydispersity. These refractory acids play a detached role in carrying pollutants in the environment with regard to carrying toxic metals and pesticides. Finally, it was possible to verify that the humic acids' complexing capacity indicates that hydroxyl and carboxyl groups may exist in larger quantities than the nitrogen and sulfur groups. Further, the high content of metals may indicate that the waste was not properly separated.

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Necrópole Em Perspectiva: Paradigmas Urbanos E Direito À Cidade

Vieira

Hardt

2021

Contribuciones a las Ciencias Sociales

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A necrópole brasileira enfrenta importantes dilemas de ineficiência técnica. Diante dessa problemática, o objetivo deste trabalho é identificar abordagens predominantes sobre o tema, reconhecendo tanto o direito à sepultura no processo sustentável de urbanização quanto o cemitério público como responsabilidade governamental na representação indistinta dos cidadãos. Com estratégia multimétodos, abordagem qualitativa e natureza exploratória, a pesquisa foi fundamentada na revisão sistemática de literatura, precedida de informações bibliométricas. Os resultados são sistematizados em três recortes temporais acerca da temática: passado, com contextualização da sua evolução até o início do século XIX; presente, com interpretação de questões contemporâneas, notadamente no Brasil; e futuro, com reflexões sobre tendências, inclusive frente à atual pandemia global. Conclui-se, então, pela essencial interdisciplinaridade do assunto e pela relação recíproca entre a urbe e o morto, imbricados em ampla diversidade de direitos.

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Potencial toxicológico de metais presentes em solos de cemitérios de Santa Maria - RS

Cited by 3 publications

References 9 publications

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Characterization of controlled landfill leachate from the city of Guaratinguetá - SP, Brazil

Necrópole Em Perspectiva: Paradigmas Urbanos E Direito À Cidade

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