http://repositorio.ufc.br/handle/riufc/67729 Tue, 02 Jun 2026 15:39:43 GMT 2026-06-02T15:39:43Z http://repositorio.ufc.br/handle/riufc/84788 Título: Aproveitamento sustentável dos resíduos da extração de calcário no estado do Ceará: uma revisão sistemática da literatura Autor(es): Costa, Laércio Silva da Abstract: The extraction of Pedra Cariri in Ceará, although vital for the regional economy, generates an alarming volume of waste, causing serious environmental liabilities and risks to fossil heritage. This study aimed to perform a systematic literature review associated with a bibliometric analysis of the scientific production regarding the utilization of these residues. Using the PRISMA protocol and the VOSviewer tool, 33 studies were analyzed from the Scopus, Google Scholar, and Web of Science databases, up to December 2025. The bibliometric results revealed significant growth in publications starting in 2015, led by institutions from Ceará (UFC, IFCE, UFCA) in interstate collaboration networks. Technically, the review indicated the feasibility of utilizing the waste in three main axes: (i) civil construction, where the fine particle size promotes the filler effect, filling micropores and densifying cementitious matrices and mortars, achieving high mechanical strength; (ii) agriculture, validating its efficacy as an acidity corrective, increasing soil base saturation; and (iii) advanced materials, highlighting the production of artificial stones and biomaterials due to high chemical purity. Thus, the literature analysis evidences that the waste generated in limestone extraction in Ceará transcends the condition of environmental liability, emerging as technically versatile and strategic byproducts for fostering the circular economy in the Araripe region. Tipo: TCC Thu, 01 Jan 2026 00:00:00 GMT http://repositorio.ufc.br/handle/riufc/84788 2026-01-01T00:00:00Z http://repositorio.ufc.br/handle/riufc/84753 Título: Evolução da atividade minerária no município de Santa Quitéria (CE) e sua influência do desenvolvimento econômico local Autor(es): Silva, Matheus Vieira da Abstract: Mining is essential to human development, with direct impacts on industry and technological innovation. Brazil stands out globally in the extraction, processing, and export of mineral inputs due to its geological diversity, which attracts significant interest from international markets. In recent years, the state of Ceará has gained prominence in the export market of ornamental stones, considered an important and strategic segment of regional mining. In this context, the municipality of Santa Quitéria stands out for hosting one of the largest uranium deposits, in addition to its role in the production and export of ornamental stones in Ceará. Although mining brings several local benefits in terms of development, there is limited discussion regarding economic parameters and how they reflect the influence of mining on a municipality’s economic development. Therefore, this study aims to analyze the contribution of mining to the economic development of Santa Quitéria through the use of economic indicators such as Gross Domestic Product (GDP), Financial Compensation for Mineral Exploitation(CFEM), and Fiscal Added Value (FAV), as well as to understand the role of active mining processes, local development, and job creation. The analysis of the indicators revealed that between 2018 and 2024, the municipality remained economically stable in the face of global crises, maintaining steady growth in tax revenues and CFEM transfers, ranking 12th (2.58%) among the main mining municipalities in the state. In addition, the economic potential of the municipality was confirmed through the Fiscal Added Value (FAV), along with a growth trend driven by the search for natural resources, evidenced by 99 mining processes under the exploration authorization regime and the installation of large-scale enterprises, such as the Santa Quitéria Project. Although mining is not yet the largest source of direct formal employment, the mapping of active mining processes and the projections of the Santa Quitéria Project indicate that mining activity will consolidate as a strategic ally of the local economy, with expectations of a significant increase in economic participation, tax revenue, and formal job creation. Tipo: TCC Thu, 01 Jan 2026 00:00:00 GMT http://repositorio.ufc.br/handle/riufc/84753 2026-01-01T00:00:00Z http://repositorio.ufc.br/handle/riufc/84743 Título: Localização de áreas potenciais para pegmatitos litiníferos em Crateús/CE utilizando sensoriamento remoto multiespectral a partir de imagens landsat 8 Autor(es): Silva, Julia Maria de Paiva Abstract: The energy transition has driven the search for various strategic elements, such as lithium, which plays a central role in technological, economic, and environmental transformations on a global scale. In the Brazilian context, the identification of occurrences of this metal is associated with pegmatites, which have aroused the interest of researchers and companies in the mineral sector. Therefore, this work aims to study potential areas for the occurrence of lithium-bearing pegmatites in the municipality of Crateús-CE, through the application of multispectral remote sensing techniques, in addition to contributing to the advancement of knowledge about lithium mineralizations in a region where scientific investigation is in its initial phase. The methodology of this research was structured based on the application of Digital Image Processing (DIP) techniques. Initially, remote sensing images were acquired. Then, the data were pre-processed, including atmospheric correction, band reprojection, and the application of the pan-sharpening technique, with the aim of improving the spatial quality of the images. Subsequently, digital image processing steps were applied, including RGB composition, Band Division, and Principal Component Analysis (PCA). Finally, the generated products were analyzed and interpreted, aiming to extract information relevant to the research objectives. In the literature, these techniques have been widely used to enhance spectral features associated with pegmatites and lithium-bearing minerals, allowing the preliminary identification of target areas with potential prospecting potential. In addition, a visit was made to an outcrop in the region, which, according to previous studies, is composed of pegmatitic rocks, making it possible to identify its mineralization. However, the generated products showed significant limitations, such as the low exposure of the pegmatites on the surface, the interference of clouds and vegetation cover, as well as the spatial resolution of the images, which made it difficult to clearly distinguish between the pegmatitic bodies and the host rocks. Despite these difficulties, the technique remains effective depending on the physical characteristics of the site and also on the compositions to be used for image processing. Tipo: TCC Thu, 01 Jan 2026 00:00:00 GMT http://repositorio.ufc.br/handle/riufc/84743 2026-01-01T00:00:00Z http://repositorio.ufc.br/handle/riufc/84721 Título: Internet das coisas (IoT) na mineração: aplicações práticas e seus benefícios Autor(es): Oliveira, Allan Jackson Gomes de Abstract: The Internet of Things (IoT) has gained prominence in recent years by establishing a network of mutual connectivity among objects embedded with technology capable of processing and transmitting data and information. In the mining sector, this technology has been applied at various stages, ranging from mineral exploration to ore processing. This study aims to analyze the use of IoT by addressing technologies such as smart helmets and the integration of sensors into geosynthetics, focusing on the application of IoT in mining environments and highlighting its benefits and challenges within the context of the digital transformation experienced by Mining 4.0. The study observes the growing need for mining companies to increase productivity, safety, and sustainability, emphasizing the strategic role of IoT as a response to the demand for more competitive and sustainable operations. Due to this demand, it is necessary to conduct a detailed analysis of IoT-enabled devices and to identify their limitations and implementation challenges. The study is based on previous research in the field that addresses the topic and the application of these technologies. It was found that the use of IoT proves to be efficient for the analysis of large volumes of data in real time, supporting decision-making processes based on such data. The use of smart helmets enables real-time monitoring, in addition to improving worker safety and providing operational information. Geosynthetics with fiber optics (FO) increase the level of structural stability monitoring along their entire length, thus offering improvements compared to conventional methods. However, connectivity in remote areas, such as the interior of the state of Ceará, represents a major constraint for the implementation of IoT in local mining operations and constitutes a critical future obstacle. Tipo: TCC Thu, 01 Jan 2026 00:00:00 GMT http://repositorio.ufc.br/handle/riufc/84721 2026-01-01T00:00:00Z