http://repositorio.ufc.br/handle/riufc/22042 Sun, 05 Apr 2026 23:51:23 GMT 2026-04-05T23:51:23Z http://repositorio.ufc.br/handle/riufc/82865 Título: Proposta de um sistema de tratamento de efluentes para a localidade de Missí no município de Irauçuba/CE com o uso de reatores UASB seguidos por lagoa de polimento Autor(es): Vaes, Vitória Regina Delfino Abstract: Basic sanitation encompasses a set of actions aimed at maintaining public health and environmental preservation, including water supply, sanitary sewage, urban drainage, and solid waste management. Its quality directly reflects public policies and the socioeconomic and cultural aspects of a region, maintaining an interface with health, the environment, and urban development (SOUZA, 2009). The discharge of effluents into water bodies can cause severe environmental impacts, such as eutrophication and contamination by pathogens, compromising water quality and restricting its use. Under natural conditions, a water body maintains ecological balance, but the introduction of pollutants disrupts this stability, leading to environmental damage. To minimize these impacts, proper effluent treatment is essential. Sewage treatment processes can be physical, biological, or chemical, with UASB reactors being a well-established and compact technology. However, they require daily operation and post-treatment for pathogen and contaminant removal. In Irauçuba, water supply coverage is 74.18%, while sewage coverage reaches only 31.78%. Given this scenario, compact and efficient systems, such as UASB reactors followed by polishing ponds, represent a viable alternative for the region. This study proposes the design of a sewage treatment system for the district of Missí, located in the municipality of Irauçuba/CE, adopting UASB reactor technology followed by a polishing pond as post-treatment. The system includes a preliminary stage with a 3-inch Parshall flume, a grate with 20 mm spacing and a section of 9.5 x 38.1 mm, as well as a sand trap measuring 0.30 m in width, 2.20 m in length, and 0.40 m in height. The secondary treatment will be carried out by three UASB reactors, each with a 4.5 m diameter and 5.0 m height, operating with a hydraulic retention time (HRT) of 7.74 hours. The treated effluent will then pass through a polishing pond measuring 60.0 m in width, 100.0 m in length, and 0.80 m in depth. With this system, an efficiency of 97.89% in BOD removal and 99.9984% in coliform removal is expected, ensuring that the effluent meets current environmental standards. Tipo: TCC Wed, 01 Jan 2025 00:00:00 GMT http://repositorio.ufc.br/handle/riufc/82865 2025-01-01T00:00:00Z http://repositorio.ufc.br/handle/riufc/82864 Título: Estudo da eficiência de tratamentos de fundação de barragens projetadas sobre fundações permeáveis utilizando modelagem numérica do fluxo Autor(es): Calaça, João Pedro Sousa Abstract: This study aims to evaluate the efficiency of foundation treatments applied to dams built over permeable foundations, using numerical modeling as the main analysis tool. The focus is on understanding the behavior of subsurface flow under different scenarios, considering technical solutions commonly adopted in geotechnical designs to control seepage in dam structures. Three distinct foundation conditions were analyzed: without any type of treatment, representing the natural condition of the permeable foundation; with the implementation of an upstream impervious blanket; and with the installation of a cutoff trench. For each treatment type, different geometries were considered in order to assess the variation in results due to changes in depth and length of the elements. The trenches were modeled with depths of 5, 7.5, and 10 meters, while the impervious blankets were simulated with lengths of 50, 100, and 150 meters. The simulations were performed using GeoStudio software (student version), with the SEEP/W module, which enables the analysis of water flow. The results obtained from numerical modeling were compared to theoretical values estimated based on equations found in specialized literature. The objective of this comparison is to evaluate the adherence between traditional theoretical methods and the data obtained through simulation, as well as to identify possible limitations or discrepancies that may arise in the process of estimating seepage in permeable foundations. The adopted approach seeks to contribute to the improvement of technical understanding of the analyzed solutions and to support future design decisions. Tipo: TCC Wed, 01 Jan 2025 00:00:00 GMT http://repositorio.ufc.br/handle/riufc/82864 2025-01-01T00:00:00Z http://repositorio.ufc.br/handle/riufc/82863 Título: Estimativa da perda de solos por erosão hídrica para a Região Metropolitana de Fortaleza utilizando o QGIS Autor(es): Viturino, Rodrigo Porfirio Tipo: TCC Wed, 01 Jan 2025 00:00:00 GMT http://repositorio.ufc.br/handle/riufc/82863 2025-01-01T00:00:00Z http://repositorio.ufc.br/handle/riufc/82862 Título: Programa “Recicla Mais” na gestão de resíduos sólidos urbanos de Fortaleza Autor(es): Pinho, Francisco Florêncio Rodrigues de Abstract: The management of municipal solid waste is an increasing challenge for large cities such as Fortaleza, which faces difficulties related to the proper management of recyclable waste. In this context, the "Recicla Mais" program was implemented by the Municipality of Fortaleza as part of strategies to expand selective waste collection in residential condominiums, promoting material reuse and encouraging the social inclusion of waste pickers. This study aims to evaluate the impact and efficiency of the program by investigating the environmental and urban demands that led to its creation, analyzing its socio-environmental benefits, and assessing its structure, methodology, and preliminary results. The research was based on a documental survey and an analysis of the program’s operational data obtained through municipal agencies. The results show that, although "Recicla Mais" has contributed to advancements in selective waste collection and the valorization of recyclable waste, it still faces challenges related to condominium participation, collection infrastructure, and public engagement. The study concludes that expanding service coverage, improving communication with residents, and strengthening the sorting infrastructure are essential factors for the program’s success and for promoting a more sustainable solid waste management model in the city. Tipo: TCC Wed, 01 Jan 2025 00:00:00 GMT http://repositorio.ufc.br/handle/riufc/82862 2025-01-01T00:00:00Z