Navegando por Orientadores "SILVA, Adriano Frutuoso da"

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Acesso aberto (Open Access)
Análise do impacto ambiental na área de influência das barragens de rejeito no município de Poconé-MT
(Universidade Federal do Pará, 2023-09-29) FERREIRA, Lorrana Dias; SILVA, Adriano Frutuoso da; http://lattes.cnpq.br/3321059172343690; https://orcid.org/0000-0003-1710-8862
Due to tragic accidents related to the failure of tailings dams in Minas Gerais, the disposal of tailings in dams has become an increasingly urgent topic of discussion, especially in relation to the risks associated with this approach. Consequently, mining companies have sought to implement alternative methods for managing tailings resulting from their operations. However, in this direction, the work analyzes the level of the environmental impact in the area of influence of tailings dams in the municipality of Poconé – MT, identifying the major damages that can be caused by a tailings dam rupture. To this end, maps of environmental impacts on the selected dams were created, using the software QGIS, also known as Quantum GIS. The Kernel method was also used, which is an analytical approach that is frequently applied in the assessment of risks and environmental sensitivity in relation to mining tailings dams. The results of the research revealed that throughout the work it was possible to observe that the mining tailings dams existing in the municipal limit of Poconé/MT are defined as structures that promote a “very high” environmental impact, mainly in the urban area than if it occurs the rupture could affect legal preservation areas and the city's drainage system, thus impacting the life of the community in general. With the data obtained, it was possible to analyze the environmental impact of tailings dams on local communities, including the possible relocation of families, access to drinking water and the health of people living nearby. Therefore, the analysis of the environmental impact in the area of influence of tailings dams in Poconé, Mato Grosso, is a crucial part of the responsible management process of mining activities, as it can help develop strategies to mitigate these impacts and ensure the protection of the environment.
Acesso aberto (Open Access)
Avaliação da segurança da barragem Labourrie/AP à luz de diferentes metodologias
(Universidade Federal do Pará, 2020-03-05) RAMBO, Luis Henrique; SILVA, Adriano Frutuoso da; http://lattes.cnpq.br/3321059172343690
In recent years, dams in Brazil have been constantly related to the occurrence of numerous engineering problems, whether in design, construction methods, control, monitoring, instrumentation, etc., these situations were created as a result of some accidents that occurred, such as Mariana's cases and Brumadinho / MG. The inadequate design and construction of these structures represents a great risk to society, the environment and the economy. Thus, in this work, we chose, as a case study, to analyze the safety of the Laborrie tailings dam, located in the Lourenço district, in the state of Amapá, based on risk analysis and associated potential damage. The methodologies used were: SABESP, COGERH (modified), USACE, CNRH Res. 143/2012 and ANM Ordinance 70.389 / 2017. The study identified the similarity in the methods, oscillating in the weights used for calculations, as well as identified the method that does not use any relevant item in the analysis of tailings dams. Therefore, it is concluded that for the Laborrie Dam case study, the use for risk assessment of tailings dams using the ANM methodology and resolution 143, are the most indicated, which does not invalidate the use of the other methodologies, however, each particularity of the proposed method must be analyzed, in order to fill in the information that really has relevance and direct impact in the search for a closer approximation of the result.
Acesso aberto (Open Access)
Avaliação de alternativas para projetos de descaracterização de uma barragem de rejeito de mineração utilizando análise comparativa multicritério
(Universidade Federal do Pará, 2024-10-10) OLIVEIRA, Pedro Lucas Louzada de; SILVA, Adriano Frutuoso da; http://lattes.cnpq.br/3321059172343690; https://orcid.org/0000-0003-1710-8862
The decharacterization of tailings has become an extremely relevant and urgent topic in the contemporary global scenario. Given the recent disasters and environmental tragedies resulting from the collapse of mining dams in Brazil in 2015 and 2019, the need to implement efficient and safe processes for the deactivation and recovery of these structures has become imperative. The complexity inherent to this type of enterprise demands a careful and comprehensive approach in evaluating the available options. The simple selection of an alternative based on a single criterion, such as financial cost or deadline, for example, can result in adverse consequences and negative impacts from both a technical, economic, environmental and social point of view. Given the above, this dissertation aims to explore the importance of analyzing alternatives considering multiple criteria in the process of choosing the best solution for the mining dam decharacterization project. Through a literature review and presentation of a case study of the decharacterization of a Manganese dam using the assessment of technical, environmental, economic and socioeconomic requirements as a decisive element in choosing the solution to be detailed. The methodology consists of analyzing the proposed alternative scenarios, including the definition and weighting of the multiple variables to be evaluated. The result obtained demonstrates that the adoption of multiple criteria, which encompass not only economic aspects, but also environmental, social, technical and safety aspects, was fundamental to guarantee a well-informed and sustainable decision. It was evidenced that the analysis of multiple criteria was also able to favor the decision-making process in mining dam decharacterization solutions, facilitating traceability and understanding between the stakeholders involved in projects of this nature.
Acesso aberto (Open Access)
Desafios para implantação dos protocolos estabelecidos no Padrão Global da Indústria para a Gestão de Rejeitos (GISTM), estudo de caso: estruturas de disposição de rejeitos no sudeste do Pará
(Universidade Federal do Pará, 2025-04-25) SOUSA, Rodolfo Pereira; SILVA, Adriano Frutuoso da; http://lattes.cnpq.br/3321059172343690; https://orcid.org/0000-0003-1710-8862
The creation of the Global Industry Standard on Tailings Management (GISTM) is a milestone for the world's largest mining companies, created with the aim of guaranteeing zero harm to communities and the environment This research aims to present the challenges of implementing the GISTM (Global Industry Standard on Tailings Management) for tailings disposal structures, located in the southeast of the state of Pará, being a dam, raised downstream, and a pit, which is an old mining area where the mineral reserve was exhausted in 2021. In order to assess the levels of compliance with the Global Standard, the technical collection of the tailings dam and pit was used to enable the application of the Compliance Protocols proposed by GISTM. The work presents the level of maturity in 3 stages, in the years 2023, 2024 and 2025. Although GISTM proposes requirements for an integrated analysis of tailings management, due to the different nature of the tailings disposal facilities, the facilities were evaluated in isolation. Based on the research, the dam was found to be more compliant with the items required by GISTM, with a more robust technical document framework than the pit. It is concluded that this result is correlated with the fact that the dam complies with Brazil's National Dam Safety Policy (PNSB), while the pit, as a tailings disposal structure, has no regulations for this use. In addition, it should be noted that although the pit is considered an unconventional disposal structure, the implementation of GISTM is required, subject to some adaptations in the understanding of what is proposed by the GISTM.
Acesso aberto (Open Access)
Mapas de inundação em área urbana na cidade de Araguaína/TO: estudo de caso da interferência da CGH Corujão
(Universidade Federal do Pará, 2022-02-25) SANTANA, Leonardo Moreira; SILVA, Adriano Frutuoso da; http://lattes.cnpq.br/3321059172343690; https://orcid.org/0000-0003-1710-8862
The habitation occupation in the area of influence of CGH (hydroelectric power station) - Corujão is quite significant, however, there is an imminent risk of flooding in the area, a factor that motivated the development of the study, to understand the real risks incident on the area. Therefore, this work aimed to analyse the impacts of the CGH Corujão dam reservoir in the urban area of the city of Araguaína/TO. A data collection and characterization of the Neblina stream, which flows into the CGH reservoir, were carried out to understand how the occurrence of high levels of rain causes the stream to overflow and increase the risks of flooding in an urban area, being calculated the maximum rainfall. With these data, a simulation was performed using the HEC-RAS program, which led to the generation of flood maps. Regarding the impacts of the dam reservoir in the urban area of the city, it was possible to observe that it has little influence in the flood areas, according to the maps obtained from the aplicativo HEC-RAS. From the results it was possible to verify that most of the maps presented risks to human life and structural damage. These data show that it is an area of vulnerability to floods and, consequently, to life, health, infrastructure, economy and socioeconomic development. The estimated contributions of the study involve the population and the government. The identification of areas of greater vulnerability in terms of failures and collapses of masonry structures, essential information for the development of a master plan in which these areas of greater risk are excluded from use for housing, commerce, services and other activities. With access to the full risk map, the city has the possibility to develop future housing programs so that the existing structures are deactivated and companies, residences, services and others are directed to other areas, with safety and guarantee of rights. Urban planning, in activities such as drainage studies, needs this information so that they can be developed in an assertive and effective way, benefiting the public administration, by avoiding damages that need to be corrected and require resources, in addition to improving the infrastructure of services and making the daily life of citizens safer. The civil defence, in possession of the data obtained, can develop support programs for the residents of the region, issue risk alerts more broadly in the face of the forecast of intense rains and floods, allowing individuals who are in these areas to seek more safe for these moments of risk. With this study, it is possible to define risk reduction approaches that guarantee more health for the population, reduce the demand for resources for health care after the floods, as well as reduce the occupancy of beds for the sick and injured due to the floods. In view of the above, it appears that the benefits are numerous, both for the population and for the public administration, with a reduction in expenses and costs to the public coffers, in addition to a greater guarantee of preservation of the life and patrimony of individuals who, in the present, live in areas of high vulnerability.
Acesso aberto (Open Access)
Modelagem do rompimento e delimitação da área de inundação da barragem da Universidade Federal Rural da Amazônia em Castanhal-PA
(Universidade Federal do Pará, 2023-06-29) FONTES, Erick Alexandre de Oliveira; SILVA, Adriano Frutuoso da; http://lattes.cnpq.br/3321059172343690; https://orcid.org/0000-0003-1710-8862
Dams have structures that can cause changes over the years, which can cause changes in change processes, impacts, changes, changes in change processes, changes in the internal change process, changes in the change process, changes in the internal change process, changes in the process of change, changes in the process of internal change, overturning and others, the cause of which may come from natural phenomena or also from mismanagement. Thus, the experimental work presented as objective the objective of analyzing the hypothetical land located in the aquaculture station of the Universidade Federal Rural da Amazônia, in the municipality of objective Castanhal - PA. No methodological approach was used to simulate the flooding of the floodplain of HEC-RAS 5.0.3 (Hydrologic Engineers Corps – River System). The model software is based on the solution of permanent or non-permanent or two-dimensional Saint-Ven solutions, in version 5.3, considering the permanent regimes. The research numbers were observed from the simulation of the effects of the dam of results that were carried out: Seven, an information survey was carried out about the dam and an information survey was carried out with the ANA. A hazard implementation process is carried out afterwards and a report that this dam is nearing completion. Therefore, it is concluded in that study that the maintenance carried out in a severe way of materials and immaterial makes the impacts downstream, in front of the exposed, necessary to maintain the interdiction of the dam so that the maintenance of materials and emergency is necessary.
Acesso aberto (Open Access)
Proposta de inspeção de barragens através de um aplicativo para dispositivo móvel
(Universidade Federal do Pará, 2021-05-21) SANTOS JUNIOR, Evandro Lopes dos; SILVA, Adriano Frutuoso da; http://lattes.cnpq.br/3321059172343690; https://orcid.org/0000-0003-1710-8862
Ensuring safety and reliability in dams is a challenge for society, governments and especially for entrepreneurs who experience daily difficulties in maintaining the enterprise in good conditions of use during its life cycle. Today, technology is an indispensable tool for this to happen in view of the continuous need for the development and application of this tool in this branch of engineering. Thus, in order to contribute to the dam inspection process, the present work brings a proposal that innovates in the way the information is collected bringing the possibility of replacing the filling of a check list in a manual and traditional way to an automated way through a platform. simple and intuitive. This platform consists of an Android application. To do so, it was necessary to analyze the entrepreneur's manual on dam safety - volume II of the National Water Agency, study about mobile application development and define the application's functionalities to develop it. Then, studies were carried out on the programming language and the software for developing the tool on Android. One by one, the features of the App were built using a peculiar methodology for this, which revolves around the gear made up of research, testing and implementation. The developed application, called ISB, is a test version and has been subjected to emulations to verify its operation. Therefore, it was found that the application performed satisfactorily, avoiding flaws in the filling, and therefore in the safety assessment of the works surveyed.
Acesso aberto (Open Access)
Verificação de desempenho dos sistemas de filtragem de resíduo bauxita por tambor e prensa como alternativa para barragens
(Universidade Federal do Pará, 2023-02-26) PANTOJA, Ronaldo Guimarães; SILVA, Adriano Frutuoso da; http://lattes.cnpq.br/3321059172343690; https://orcid.org/0000-0003-1710-8862
Tailings dams generally function as a reservoir of tailings and water, due to existing disposal methods, this is due to the characteristics of the processing processes of mining companies and refineries, which use a very high concentration of water in this process, resulting in tailings with low solids contents and that offer risks in the disposal and that also directly impact the environment in which they are inserted. In view of the occurrence of accidents involving tailings dams in Brazil and worldwide and the need to reduce the impacts caused, mining companies and ore processing industries have invested in innovative technology that promote waste dewatering, making them drier and providing a safer form of disposal. However, in this direction, this study presents the methods of disposal of wet and dry tailings in the form of landfills, obtained from filtration systems, highlighting the advantages and disadvantages of the use of the filter press compared to the drum filter for the disposal of bauxite residue. Experimental landfills of bauxite residues from an alumina refinery, located in the state of Pará, were used, which allowed the knowledge of the material behavior after filtering by filter press, when submitted to compaction by track tractor and compactor roller. A qualitative risk analysis of the FMEA type was also analyzed to identify the risks involved in the method of disposal of the filtered residue by drum filter. The residue dewatered through the drum filter reaches an average solids content of 60% at the end of the process and per filter press up to 80%. The compaction tests allowed the knowledge of dry density, optimum humidity and degree of compaction of the material dewatered by filter press, when arranged in the form of a controlled landfill. The two waste filtration systems (Drum Filter and Press Filter) were compared considering the operational, safety and environmental aspects, allowing to know the advantages and disadvantages of each system and the safer disposal method, less impacting on the environment and less susceptible to structural problems. The FMEA analysis identified the main triggers and failure modes related to geotechnical risks in the operation of the waste system with drum filter, for disposal via construction of platforms. The aspects of "insecurity" and "dam galling" were analyzed and generated the risk matrices and their consequences / effects. The results "High Risks" helped to define the change in the filtering system and arrangement method.