Avaliação da vulnerabilidade à contaminação das águas subterrâneas por meio dos métodos AHP e TOPSIS

Tedesco, Adriana Maria; Oliveira, Gilson Adamczuk; Trojan, Flávio

doi:10.1590/s1413-415220190322

Cited by 4 publications

(3 citation statements)

References 31 publications

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“…As reported by the authors themselves, the technique is satisfactory although its coverage in depth is low due to the electrodes that are inserted into the soil and receive electrical charges at opposite poles aiming at the decontamination of this area. The researchers affirm TEDESCO, et al [49], that the vulnerability of these aquifer areas is closely linked to environmental contaminants (YAN, et al [50]), the use of the soil, whether agricultural or in urban centres by industries and by the discharge of wastewater without proper treatment, increasing the vulnerability of aquifers and showing the latent need for refined techniques of decontamination of this source of surface water replenishment.…”

Section: Groundwater Remediation and Treatment Techniquesmentioning

confidence: 91%

Groundwater and Anthropic Activities: A Qualitative Study on Treatment Techniques

Oliveira

2024

BJSTR

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The hydrological water cycle comprises constant water movements, which have great influence on the maintenance of vital natural activities. Groundwater in particular constitutes a portion of aquifers, which are considered mobile reservoirs used mainly as a source of supply and human consumption. However, external influences have become largely responsible for the unbalance of the ecosystem, linked to the unbridled human consumption of finite natural resources and the consequent discharge of waste into the receiving bodies without the necessary treatment. The geological water cycle is interrupted when forests are cut down, springs and rivers are extinguished, and together with this, finally, the lack of basic sanitation alters the ecosystem, causing changes of great relevance to the world's population. Groundwater has suffered relevant impacts due to the loss of biodiversity of ecosystems, such as contamination, overuse, lack of current regulatory legislation for use, and the improvement of decontamination techniques. The analysis of the following activities is necessary, mainly due to the anthropic punctual impacts to the ecosystem, corroborating the need for satisfactory techniques. It is noticeable the need for extreme attention to the waste runoff via sanitary sewage to places that have treatment, but the same is not very efficient in retaining this liability, since some developing countries that have not reached about 90% treatment of sanitary sewage, demonstrating the lack of such activities. Thus, the objective of this study is to verify, by means of exploratory and bibliographic research in research bases, the measures that protect the water. Technological measures and sustainable management tools for this purpose will be reviewed, as well as the evolution of groundwater treatment techniques.

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Section: Groundwater Remediation and Treatment Techniquesmentioning

confidence: 91%

Groundwater and Anthropic Activities: A Qualitative Study on Treatment Techniques

Oliveira

2024

BJSTR

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“…O método proposto para a análise das áreas suscetíveis às inundações e aos alagamentos no município de Jaboatão dos Guararapes teve como embasamento a aplicação do AHP, que se trata de um método de auxílio à MCDM, desenvolvido por Thomas L. Saaty em meados da década de 1970. O AHP é compreendido por uma metodologia voltada à hierarquização de múltiplos critérios representativos de um problema, organizados em níveis de abstração ou detalhamento, que permite a integração entre critérios qualitativos e quantitativos (GUEDES et al, 2021;SCHMIDT;BARBOSA, 2016;TEDESCO;TROJAN, 2021).…”

Section: Aplicação Do Ahpunclassified

Mapeamento das áreas suscetíveis às inundações e aos alagamentos no município de Jaboatão dos Guararapes, Pernambuco

Neto

Silva

Barbosa³

2022

Bol. Geogr.

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O fenômeno da urbanização no Brasil se desenvolveu de maneira acelerada e desordenada, alterando significativamente as condições de uso do solo e resultando em consideráveis mudanças no ciclo hidrológico. O reflexo desse processo se tornou um dos principais problemas enfrentados pela cidade, que é o aumento da ocorrência de inundações e alagamentos. Assim, o presente trabalho buscou mapear as áreas suscetíveis a esses tipos de desastres hidrológicos no município de Jaboatão dos Guararapes, em Pernambuco, utilizando o AHP (Processo Analítico Hierárquico), em um Sistema de Informações Geográficas (SIG). Para isso, foram selecionados sete fatores que contribuem para os desastres hidrológicos que foram processados no software QGIS (v. 3.10.9), reclassificados e dispostos à álgebra de mapas. Dessa forma, foi possível confeccionar o mapa das áreas suscetíveis às inundações e aos alagamentos para a região estudada, sendo observado que as regiões que apresentaram maiores propensões aos desastres hidrológicos são as mais próximas aos corpos hídricos e que possuem baixas declividades e altitudes, fortes intervenções antrópicas e solos com baixa capacidade de infiltração. A utilização do AHP quanto ao mapeamento das áreas suscetíveis às inundações e alagamentos no município de Jaboatão dos Guararapes se demonstrou uma alternativa vantajosa quanto à aplicabilidade e viabilidade, permitindo tomadas de decisões por gestores e/ou profissionais da área.

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“…Some of the main intensifiers of the quality degradation and reduction of water availability are social pressures for spaces to be occupied, ecologically inappropriate economic practices, as well as the negligence of public authorities in the face of the irregular release of domestic and industrial effluents without any treatment directly into the rivers (Tedesco et al, 2021). In addition, the mischaracterization of natural conditions through the canalization of rivers or even with their confinement by closed channels would contribute to the development of cities (Fagundes, 2022).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of technical viability for urban rivers revitalization: Arroio Dilúvio case study in Porto Alegre/RS – Brazil

Medeiros,

Dornelles,

Silva

2023

RBRH

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The degradation of urban rivers is a phenomenon caused by virtually all cities intersected by rivers. Currently, there is a substantial number of revitalization projects in progress. Nonetheless, their execution demands significant investments, particularly for water quality enhancement. Moreover, apart from the cost factor, the scarcity of space along their banks constrains the implementation of improvement systems. This study introduces a simplified methodology aimed at evaluating the technical feasibility of revitalization interventions within urban river segments, with a focus on enhancing water quality and user experience. The method follows a structured framework encompassing four sequential phases: execution of hydraulic, hydrological, and sanitary analyses concerning the watershed; development of foundational principles and intervention strategies pertaining to the riverbed; appraisal of the congruence between proposed interventions and the intrinsic attributes of the river channel; comprehensive assessment of the overall viability of the revitalization initiative. The method's validation was conducted through a case study involving the Dilúvio Stream in Porto Alegre, RS, showcasing its coherent application and adaptability within the predetermined premises. Thus, the methodology emerges as a preliminary decision-making support tool for projects related to the urban river requalification domain, facilitating the identification of met prerequisites and provision of informed guidance.

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Avaliação da vulnerabilidade à contaminação das águas subterrâneas por meio dos métodos AHP e TOPSIS

Cited by 4 publications

References 31 publications

Groundwater and Anthropic Activities: A Qualitative Study on Treatment Techniques

Groundwater and Anthropic Activities: A Qualitative Study on Treatment Techniques

Mapeamento das áreas suscetíveis às inundações e aos alagamentos no município de Jaboatão dos Guararapes, Pernambuco

Evaluation of technical viability for urban rivers revitalization: Arroio Dilúvio case study in Porto Alegre/RS – Brazil

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