https://repositorio.ufms.br/handle/123456789/6405 2026-07-22T12:33:23Z https://repositorio.ufms.br/handle/123456789/14654 Título: DCOU — Dimensionamento Computacional de Operações Unitárias: uma ferramenta didática para Engenharia Química Abstract: This work presents the development of DCOU (Computational Sizing of Unit Operations), an open-source web-based software application designed as a didactic tool for Chemical Engineering education. The system automates calculations for unit operations based on consolidated equations, covering modules for piping, fluid flow, pumps, thermodynamic properties, ideal reactors, and mass balances. In addition to numerical results, the application integrates learning-oriented resources, such as a technical glossary with rendered equations, theoretical explanations embedded in each calculator, example scenarios provided by the backend, and interactive visualizations of physical phenomena. The clientserver architecture exposes calculations and visualization models through an open API (Application Programming Interface), while the modern React frontend organizes these resources into a navigable and responsive experience, with consistent adaptation to different screen sizes, including mobile devices, desktops, and ultrawide monitors. The code remains publicly available, promoting flexibility, collaboration, and continuous improvement by the academic community. Tipo: Trabalho de Conclusão de Curso 2026-01-01T00:00:00Z https://repositorio.ufms.br/handle/123456789/14474 Título: Dimensionamento de sistema de tratamento de lixiviado de aterro sanitário com ênfase na eficiência de remoção de DBO e DQO. Abstract: This work aimed to propose and design an integrated system for the treatment of landfill leachate, aiming for high efficiency in pollutant removal and compliance with environmental legislation. The system consisted of screening, a homogenization tank, an anaerobic lagoon, a facultative lagoon, activated sludge, a secondary clarifier, and polishing ponds, using hydraulic and kinetic criteria consolidated in the literature. The results demonstrated high overall efficiency, with 98.84% removal of BOD and 95.28% of COD, reducing concentrations to 31.17 mg·L⁻¹ and 332.69 mg·L⁻¹, respectively. The activated sludge system stood out as the main stage of degradation of the remaining organic matter. It is concluded that the proposed arrangement presented technical coherence and high theoretical performance in leachate treatment, showing potential for real-scale application. However, the removal of recalcitrant compounds, ammoniacal nitrogen, and metals may require complementary processes in more restrictive scenarios. Tipo: Trabalho de Conclusão de Curso 2026-01-01T00:00:00Z https://repositorio.ufms.br/handle/123456789/14366 Título: Avaliação preliminar das operações de extração de Calycophyllum multiflorum e secagem para obtenção do extrato seco para produção de fitoterápicos Abstract: The growing global concern about antimicrobial resistance promotes research into new active compounds used to overcome the adaptability of multi-resistant bacteria, with nature being a source of diverse alternatives with adjuvant properties for the development of new herbal medicines. A previous study by the PRONABIO - INQUI- UFMS research group revealed that Calycophyllum multiflorum leaf extract showed synergism in combination with the antibiotics ampicillin and ciprofloxacin against resistant strains of Staphylococcus aureus, S. pseudointermedius, Enterococcus faecium, Pseudomonas aeruginosa and Acinetobacter baumannii. Therefore, the objective of this work was to carry out a bibliographical review of the main unit extraction and drying operations used in the industrial process of obtaining the dry extract for the production of a new herbal medicine or antibiotic adjuvant agent. In this sense, the most used and viable techniques in the production of dry extracts of natural products were evaluated and a proposal for the flow of the complete production process was presented. The extraction technique evaluated was percolation, as it is the main method used for thermosensitive substances, is low cost, easy to implement and capable of extracting large quantities of product. Furthermore, Percolation extraction has ethanol as the main organic solvent used, as it is easily recovered in later stages and can extract polar and non-polar molecules, generating lower costs. For drying, the spray drying operation was evaluated, defined as the main technique as it is used for temperature-sensitive products, guarantees stability of the dry extract and is a quick operation. For drying by spray drying, the use of a drying adjuvant was analyzed, highlighting colloidal silicon dioxide, which favors the concentration of solids and increases drying efficiency. Furthermore, a pre-drying operation was examined to increase the solids content for better process performance, thus highlighting the falling film evaporator, which allows the evaporation of heat-sensitive products. Based on the literature review, this work can be used as a basis for more advanced studies on the development of new herbal medicines. Tipo: Trabalho de Conclusão de Curso 2024-01-01T00:00:00Z https://repositorio.ufms.br/handle/123456789/14265 Título: Análise Comparativa das Rotas de Reforma a Seco e a Vapor do Biogás via Simulação em DWSIM Abstract: The growing demand for sustainable energy sources has driven the development of technologies that valorize the processing of organic waste, such as biogas. This work aims to conduct a comparative study between two major thermochemical conversion routes of biogas into synthesis gas: dry reforming and steam reforming. The biogas used was simulated with a typical composition of 70% CH₄ and 30% CO₂, following a purification step. Simulations were carried out using the DWSIM software and the Peng-Robinson thermodynamic model, through a process flow that includes a mixer, heater, heat exchanger, equilibrium reactor, and separator. The methodology analyzed the influence of temperature (550 °C to 900 °C) on reagent conversion and syngas composition, as well as the effect of energy integration between process streams. Results showed that steam reforming offers higher H₂ yield and H₂/CO ratio, which is suitable for hydrogen production. In contrast, dry reforming is advantageous due to its simultaneous consumption of CH₄ and CO₂, contributing to the reduction of greenhouse gases and producing an H₂/CO ratio near 1, ideal for Fischer-Tropsch synthesis. The implemented energy integration resulted in a significant thermal consumption reduction—over 80%—enhancing the overall efficiency and sustainability of the process. The use of thermodynamic equilibrium simulation based on Gibbs free energy minimization enabled the evaluation of the processes’ efficiency and selectivity. This study supports technical advancements in biogas conversion and provides guidance for selecting the most appropriate route according to the desired application and available operating conditions, especially in regions like Mato Grosso do Sul, which has significant biogas production potential. Tipo: Trabalho de Conclusão de Curso 2026-01-01T00:00:00Z