http://repositorio.ufc.br/handle/riufc/23646 Tue, 28 Jul 2026 07:19:05 GMT 2026-07-28T07:19:05Z http://repositorio.ufc.br/handle/riufc/87070 Título: Estudo do processo híbrido de eletro oxidação e eletrocoagulação por dissolução catódica no tratamento de efluente têxtil Autor(es): Amazonas, Álvaro Amanajás Abstract: The use of electrochemical methods in the treatment of industrial effluents is a promising alternative to traditional methods, as the efficiency in removing pollutants provides satisfactory results in industries and treatment plants. However, electricity consumption and high initial costs are still factors that prevent its widespread use. In this sense, the present work aims to study an alternative method in the use of electrochemical cells to increase efficiency in relation to known methods: electrochemical oxidation with electrocoagulation by cathodic dissolution. It is a hybrid method, using two traditional processes (electrocoagulation and electrooxidation) but innovating in the disposition of the electrolytic cell to obtain better results. To study the process, the effects of initial pH (4, 7 and 10), anode type (graphite and Ti/Pt) and supporting electrolyte (NaCl, NaNO3 and Na2SO4) were initially evaluated in preliminary tests, then, the efficiency comparison of the proposed method with the methods already known in the literature in the removal of synthetic textile effluent (Red Remanzol RB 133%) were made. During the experimental procedure, analyzes of dissolved organic carbon, color, pH, cathode mass and energy consumption were performed. The results obtained provided the following optimal operating conditions in the preliminary tests: pH 4, Ti/Pt anode and NaNO3 as supporting electrolyte. In comparative tests, the hybrid method proposed in the present work showed better efficiency in color removal (100%), dissolved organic carbon (69.71%), energy consumption and electrode consumption compared to traditional methods of electrocoagulation and electro-oxidation applied separately, demonstrating that the technique is a promising alternative to traditional methods in the treatment of water and effluents. Tipo: TCC Fri, 01 Jan 2021 00:00:00 GMT http://repositorio.ufc.br/handle/riufc/87070 2021-01-01T00:00:00Z http://repositorio.ufc.br/handle/riufc/84931 Título: A importância do estágio na formação profissional dos estudantes de engenharia química: um estudo no contexto organizacional cearense Autor(es): Paula, Bruna Gomes Rodrigues Abstract: The curricular internship is a crucial stage in the professional training process of students, regardless of their field of study, as it enables the integration of knowledge acquired in the academic environment with the demands of the organizational context. In view of the growth of the industrial sector in the state of Ceará and the increasing demand for professionals who, in addition to technical expertise, also demonstrate behavioral skills, it becomes relevant to understand how the internship experience contributes to the development of essential competencies for professional practice. This study aims to analyze the influence of the curricular internship on the professional training of chemical engineering students, seeking to identify the main skills developed during this experience from the perspective of managers of companies located in Ceará. The research adopted an exploratory and descriptive approach. The exploratory stage was based on documentary analysis and scientific studies related to competency development in the engineering context. In the descriptive stage, an electronic questionnaire was applied to managers of companies in Ceará that host chemical engineering interns. The results indicate that the curricular internship contributes to the development of technical competencies, such as data interpretation and report preparation, performance of laboratory analyses, and mastery of productive processes. Regarding behavioral skills, problem-solving ability, sense of responsibility and autonomy, communication, and teamwork stand out. It is concluded that the internship plays a strategic role in the training of chemical engineers who are better prepared to meet market demands, strengthening employability and professional insertion in the industrial context of Ceará. Tipo: TCC Wed, 01 Jan 2025 00:00:00 GMT http://repositorio.ufc.br/handle/riufc/84931 2025-01-01T00:00:00Z http://repositorio.ufc.br/handle/riufc/84741 Título: Desenvolvimento de aplicativo para tratamento de dados de emulsões de petróleo Autor(es): Silva, Elton Erick Carneiro da Abstract: The formation of water-in-oil emulsions during petroleum production operations represents a significant technical challenge, as it increases costs and processing time. Understanding the formation and stability of these systems is of paramount importance for mitigating issues and optimizing production. Parameters associated with emulsion stability, such as the Droplet Size Distribution (DSD) and the mean droplet diameter, are fundamental for characterizing and understanding emulsion behavior. Traditional analysis methods, such as manual counting in micrographs, are labor-intensive, subjective, and poorly scalable. In this context, the present work developed a Python-based application capable of automating the processing of emulsion micrographs through the Hough Transform for circle detection, enabling the determination of the mean droplet diameter (D32) and the corresponding DSD. A total of 325 emulsions were produced using 13 distinct crude oils, with variations in temperature, salinity, and water cut; after filtering for immediate instability, 265 emulsions were analyzed. The implemented method presented an average absolute error of approximately 1.3 μm when compared to manual processing performed using the ImageJ software, while reducing processing time from approximately 30 minutes to less than 5 seconds per image set. The application also incorporated machine learning models to predict emulsion stability, viscosity, and D32, following the methodology proposed by Rolim et al. (2026). The use of Python programming enabled fast analyses, providing significant advances in standardization and in the handling of large volumes of experimental data. Tipo: TCC Wed, 01 Jan 2025 00:00:00 GMT http://repositorio.ufc.br/handle/riufc/84741 2025-01-01T00:00:00Z http://repositorio.ufc.br/handle/riufc/84653 Título: Redução dos índices de perda de lata e extrato em uma indústria de bebidas Autor(es): Pereira, Maria Letícia Ferreira Abstract: In the current context, the continuous improvement of the industrial processes on the shop floor is not just a matter of reducing costs or losses, but also a way of creating an environment that engages coworkers and values providing new knowledge and tasks day after day. This study demonstrates the application of continuous improvement methodologies and tools to reduce Can and Extract losses on a packaging shop floor at a local industry. Some of these methodologies are called Value Stream Mapping, Unified Problem Solving, Root Cause Failure Analysis and Kaizen Teams and they were applied with the help from the machine’s operators and their supervisors. Two Kaizen Teams were created, one with focus on Can loss and the other on the Extract loss, both following the same already defined steps and establishing quantified goals, as is already expected from a team of its nature. The root cause of every loss was investigated and corrective actions were established so these losses could be reduced as much as possible. After this, all the goals were achieved. In comparison with the previous measured period, the analyzed process reduced the average percentage of can losses from 1,02% to 0,36% and the average percentage of extract losses from 1,65% to 0,44% after the implemented actions. Tipo: TCC Sun, 01 Jan 2023 00:00:00 GMT http://repositorio.ufc.br/handle/riufc/84653 2023-01-01T00:00:00Z